Mined Opinions For API: com.fasterxml.jackson

This tab contains all the opinions collected from Stack Overflow about the API. The other tabs present summaries of the opinions using different algorithms.
  • @Zaphod42 Efficiency doesn't only apply to how fast code executes.. details
  • Safe?. details
  • This is a valid solution as well, but I would like to stay away from manually serializing objects.. details
  • Super helpful!.. details
  • Correct, I just opted for simplicity of explanation.. details
  • Perhaps adding a jax-rs Jackson dependency will resolve the issue: URL_http://mvnrepository.com/artifact/org.codehaus.jackson/jackson-jaxrs/1.9.13 .. details
  • Hi millimoose, it's a fair point but I guess I am hoping that this would be a common enough problem that there might be some best practice pattern or language features of Jackson to help deal with it.. details
  • Glad you got it all working!. details
  • Also, please include version of Jackson used.. details
  • Its good story but where your Json String?. details
  • Correct: if you don't do that, type to use is Thing<Listing<?>>, which is about same as Thing<Listing<Object>>.. details
  • This is what I meant by "I appreciate I could roll my own implementation of this behaviour with streaming JSON APIs from Jackson, GSON etc.". details
  • I'm also using com.fasterxml.jackson.dataformat jackson-dataformat-csv 2.2.3 which seems to be importing it as well.. details
  • please check the question i have added the service.. details
  • As mentioned below, if you really want it to convert to an array of name/value pairs, you should return a list of objects with one String name (or id or whatever) property.. details
  • Jackson ( URL_http://jackson.codehaus.org /) is known for being extremely fast and I believe now has native BSON support.. details
  • @Jaroslaw.zawila I hoped in Jackson there is an annotation like XmlJavaTypeAdapter in jaxb.. details
  • @Stax: Jackson is simply extremely performant :) Besides, don't forget that Gson does/can more than only serializing.. details
  • I find jackson or simple json much easier to use then gson.. details
  • Could you expand on this please?. details
  • Thanks, to make this clear.. details
  • :-)Actually, I use Jackson to generate JSON formatted String (from Java objects and from file containing JSON like the example above) and finally build Javascript content, server side.The generated Javascript is then written in a HTTPResponse and interpreted client-side.So, I think I cannot encode the function as a String, whereas I need to be "seen" as a String :-/Maybe with a custom parser ?. details
  • The JsonIdentityInfo annotation is lovely, thanks @EugeneRetunsky !. details
  • I'll mark it as correct.. details
  • I found this page very useful to learn how that works: URL_http://wiki.fasterxml.com/JacksonFeatureObjectIdentity .. details
  • I'll post a full example if it works.. details
  • You should accept the correct answer, the one that Programmer Bruce said.. details
  • And good choice on Jackson... Android's JSON library is poor, to be honest.. details
  • So without a clear goal you're not likely to get meaningful answers.. details
  • Thanks a lot , it worked.. details
  • I would be interested in seeing a measurement that backs this up.. details
  • Anyway, thanks for listing expected benefits, this is better than just suggesting using another lib without justification.. details
  • Jackson:1.9.12 I really appreciate your help :).. details
  • I am not quite sure why you would doubt explicit guarantee by author(s) of the library (I assume you refer to URL_http://wiki.fasterxml.com/JacksonFAQ , "Is ObjectMapper thread-safe?. details
  • The most recent version is 2.2.1!. details
  • I looked through the java docs for jackson 1.7.9 for a config like that but didn't see any.. details
  • and updated to Jackson 2.2.2 Thanks!. details
  • Not sure how it works with primitives, but at least take a look at it.. details
  • Great to know.. details
  • Well, changing the type of 'value' to Object solved my problem.. details
  • Thanks for the great explanation and the FAQ item!.. details
  • Jackson can be quite forgiving, but not that forgiving ;).. details
  • Edited the question, please take a look.. details
  • I will update them later, and hope that that solves the issue.. details
  • Anyways, well digged!. details
  • Note however that Jackson can parse any JSON value, it is not limited to JSON text (ie, only arrays or objects).. details
  • Thanks, It works, now I will see how I can have the exact desired format.. details
  • Hey, that's my article!. details
  • This works!. details
  • well put, mister.. details
  • ok, I did not get your question, to be clear: you want to replace whatever full text password is showing by a string containing only XXXX.. details
  • Excellent!. details
  • This solution seems to be ignoring both setValue properties (i.e., nothing gets set even though the JSON contains a value).. details
  • When using Json the idea is to have Classes of object with attributes that represent your stream so you can instanciate directly the data inside those objects and store/use them in the app.. Hashmap is not a best practice i guess.. details
  • Interestingly when I tried to use the example given on URL_http://wiki.fasterxml.com/JacksonMixInAnnotations for this i.e setting it in a Module and using a SetUpContext.. details
  • Fair enough.. details
  • Jackson is a popular alternative to GSON.. details
  • You are the man....!!. details
  • I ended up upgrading to Jackson 2.x and all is well.. details
  • Yes, like in your example.. details
  • FWIW, almost all Java JSON libraries support this conversion mode, including GSON, Jackson and Genson.. details
  • If he wants the most efficient way, this is overkill.. details
  • URL_http://stackoverflow.com/questions/9390368/java-best-approach-to-parse-huge - extra-large-json-file.. details
  • Could you expand on this please?. details
  • This looks like a nice tutorial, but I haven't had a chance to go through it yet.. details
  • Wow, it's auto-magical :P Thanks!.. details
  • Thanks for the tipI answered the question with the details of how I solved this issue since the deserializer is a bit different from that question.. details
  • Thanks.. details
  • Muchos gracias amigo.. details
  • I ended up upgrading to Jackson 2, which required me to upgrade another tool (Spring Integration) to an unofficial release - but all works.. details
  • I see!. details
  • thanks.. details
  • That is a JSON Array, so it must be bound to Java Collection (like List) or array (can use type Object[].class).. details
  • Thanks!.. details
  • I'll mark it as correct.. details
  • Correct, I just opted for simplicity of explanation.. details
  • This is a valid solution as well, but I would like to stay away from manually serializing objects.. details
  • Your question is not very clear... do you want a list of objects Movie with an attribute name, which contains the value of either "movieName" or "movieTitle"?. details
  • It might be easier to use the ObjectMapper method that gives you a JsonNode, cast it to an ObjectNode and modify that.. details
  • This works!. details
  • Thanks for the great explanation and the FAQ item!.. details
  • Thanks, It works, now I will see how I can have the exact desired format.. details
  • I found this page very useful to learn how that works: URL_http://wiki.fasterxml.com/JacksonFeatureObjectIdentity .. details
  • Simon's answer is correct.. details
  • I'm sure you can probably do something similar in jackson, but I'm happy to switch to google gson as none of my client code outside the parser relies on any specific concrete json implementation.. details
  • Thank you, this was exactly what I was looking for - is there a tutorial somewhere on how to use Jackson's various attributes?. details
  • Please help me to get retweet count of perticular tweet ?. details
  • Post your configuration... Also please specify which Spring and Jackson version you are using.. details
  • Hi Bart, Thanks you so much for your detailed answer.. details
  • Weeell here's something that I made up: URL_http://pastebin.com/w4thyPVK .. details
  • Thanks.. details
  • well put, mister.. details
  • You should go with jackson-core, jackson-databind and jackson-annotations, all 2.2.x.. details
  • That looks promising, will take a look at it, thanks.. details
  • Thank you, this is how I was doing it I just hoped there was a better way.. details
  • Hey man, thank you very much... the way that I was calling was wrong...Instead of that, now I'm calling like this: CODETERM1 .. details
  • added class structure, thanks.. details
  • Thank you.. details
  • Ok, thanks for confirm that, I will report the issue.. details
  • Thanks man.You really helped me.. details
  • have look at AbstractTableModel, here are a few very good attempts on last two months.. details
  • I've seen some performance metrics on GSON - FlexJSON and Jackson Mapper are also easy to use APIs for converting POJO into JSON, and have better overall speed/performance than GSON.. details
  • Thank you very much when i downgrade jackson on my pom to 1.9.12 i get JSON data.. details
  • Thanks.. details
  • Thanks, I'll give this a try right away and report back!.. details
  • However, I would also like to know how to do this in jackson 1.x.. details
  • if you serialize the list it will looks like :.. details
  • @SotiriosDelimanolis excellent, thank you so much.. details
  • Thanks man, this was exactly the thing I needed.. details
  • I need printing array values in next line.. details
  • Here is the code for that: URL_https://github.com/StFS/L yraJacksonDeserializers/blob/master/src/main/java/com/activitystream/lyra/jack son/LyraRetryPolicyDeserializer.javaThe rest of the code is in that same project and I'd really appreciate some more hints on how to avoid code duplication when creating this deserializer.. details
  • After you've read the value consider displaying it.. details
  • this is really nice way.. details
  • Thank you very much!.. details
  • @StaxMan: I am a bit concerned if ObjectMapper is still thread-safe after [ ObjectMapper#setDateFormat()]( URL_http://jackson.codehaus.org/1.9.0/javadoc/org/c odehaus/jackson/map/ObjectMapper.html#setDateFormat%28java.text.DateFormat%29) is called.. details
  • Thanks.. details
  • Thanks!.. details
  • Tom, thank you for the information.. details
  • Wow, it's auto-magical :P Thanks!.. details
  • When jackson deserializes from the request body all missing fields will be null so you don't even have to explicitly set values to null.. details
  • I will update them later, and hope that that solves the issue.. details
  • Jackson is my personal favorite for simplicity and performance but it's a bit subjective.. details
  • Any examples on how to deserialize json objects into Lists using jackson 2.x api?. details
  • I'd add that while the configuration options with Jackson are vast and much more significant than those available with the Gson API, for the simple use case of mapping between data structures requiring minimal custom processing, Jackson, like Gson, provides for a simple one line solution.. details
  • Well, changing the type of 'value' to Object solved my problem.. details
  • Thank you, the "great solution" is very helpful.. details
  • I can't change getter because of compatibility issue, these are the old json format, but all the new json will be according to { "key" : ["key1", "key2", "key3"], "value" : ["v1", "v1", "v1"]} this structure, So in setter input parameter is type of Object.. details
  • @Zaphod42 Efficiency doesn't only apply to how fast code executes.. details
  • I think Jackson is not really well- typed and should treat IO separately from non-IO (but that's probably because I have to do that as well in Haskell ;)).. details
  • Thank you very much!.. details
  • I don't want to create a special constructor like in the accepted answer because I don't want to touch the POJOs.How could I accomplish this using the custom deserializer route?Please, check my question: URL_http://stackoverflow.com/questions/19008853/jackson - deserialize-json-property-into-objectThanks!.. details
  • Thanks, but this is not a solutions for me.. details
  • According to the Jackson documentation this behaviour should be standard.. details
  • I want to use Jackson and I couldn't find in the documentation where it explained the ResourceConfig class in the detail I would like but, but from the examples you linked to, and roaming the docs some more, I got it working.. details
  • I found this page very useful to learn how that works: URL_http://wiki.fasterxml.com/JacksonFeatureObjectIdentity .. details
  • Thanks, @boberj - Odd that no-one managed to find this before; the feature must've been in Jackson at the time I asked, since your link is to an older answer describing this.. details
  • @androniennn Jersey uses Jackson iirc with the @Produces(json) annotation, which uses reflection to convert your object to json.. details
  • I'm also using com.fasterxml.jackson.dataformat jackson-dataformat-csv 2.2.3 which seems to be importing it as well.. details
  • Thanks for clear answer.. details
  • Hi Bart, Thanks you so much for your detailed answer.. details
  • Correct -- I can't think of a way to do it easy way (without custom serializer/deserializer) with Jackson 1.2 or before.. details
  • I will update them later, and hope that that solves the issue.. details
  • I've seen some performance metrics on GSON - FlexJSON and Jackson Mapper are also easy to use APIs for converting POJO into JSON, and have better overall speed/performance than GSON.. details
  • @Konstantin how to use a switch like -Xmx1024m when launching the server process ?. details
  • After that I have updated Jackson library to version 2.2.2 (com.fasterxml.jackson) and it works really good.. details
  • thanks to you I found the problem!...your suggest is correct, but my code too ^_^...I have forgot a dependency: org.codehaus.jackson.jackson-jaxrs.. details
  • If that's really what the date looks like (is +1000 the UTC offset in hours and minutes?). details
  • Thank you very much!.. details
  • EnumMaps are serialized using a [specialized serializer]( URL_http://fasterxml.github.io/jackson-databind/javadoc/2.0.0/com/fast erxml/jackson/databind/ser/std/EnumMapSerializer.html), and hence your custom serializer won't be picked up while serializing the keys.. details
  • Thank you for correcting this.. details
  • This got me pretty close, but for some reason I have extra quotes around the child objects.. details
  • I can't change getter because of compatibility issue, these are the old json format, but all the new json will be according to { "key" : ["key1", "key2", "key3"], "value" : ["v1", "v1", "v1"]} this structure, So in setter input parameter is type of Object.. details
  • After addin the JacksonJsonProvider it my code works.. details
  • Maybe this link is helpful: URL_http://www.mkyong.com/webservices/jax-rs/json - example-with-jersey-jackson/ or URL_https://jersey.java.net/documentation/1.17/json.html .. details
  • However, you usually don't want a JsonNode, so I wanted to show how to tell Jackson what kind of value of you want.. details
  • @tribrick - You can browse through [this working example]( URL_https://github.com/sevenhillsoftware/bookreader) .. details
  • This approach works for HashMap's, although in my particular case MyKey is an enum and I'm actually using an EnumMap.. details
  • I've started working with the Jackson version bundled with the google-http- java-client, which is currently the 1.9.4, then I went on preferring the use of Jackson itself instead of the higher level pluggable JSON parsers of the Google library (which has much less support for annotations).. details
  • Marvin, all performance benchmarks that I have seen that are NOT done by authors of specific JSON library point to either Jackson being the fastest, or in some cases FastJSON ( URL_https://github.com/AlibabaTech/fastjson) .. details
  • What is the stacktrace if any in server logs and how did you make that request , post the JS code also!!!. details
  • Like Jackson.. details
  • Hestitated to try GSon but Jackson is doing great :).. details
  • thanks for the help though.. details
  • That works if your attribute is really transient, not ORM involved, for example....Found @JsonIgnore to be more interesting in my case, though I would be locked to jackson, but it's a good tradeoff.. details
  • because this is not an array, this is an object with one field ConfigData, and value of this field is an array.. details
  • Thanks, to make this clear.. details
  • After annotating a field with @JsonProperty(required=true), how can I detect it when this field is missing from json?. details
  • good blog entry explaining how to escape specific characters in jackson: URL_http://www.cowtowncoder.com/blog/archives/2012/08/entry_476.html .. details
  • You will find Jackson and FastJSON the fastest choices.. details
  • Could you give me example how it should look like?. details
  • this is really nice way.. details
  • Could you give me example how it should look like?. details
  • I will update them later, and hope that that solves the issue.. details
  • The basic code you posted looks fine, but we don't know the context of how the code is invoked.. details
  • Anyway, thanks for listing expected benefits, this is better than just suggesting using another lib without justification.. details
  • I am awarding you the bounty for providing a detailed example of getting Jackson <2 to work though - thank you.. details
  • I cannot choose the library I'm working with.. details
  • When I upgraded to jackson 2.x, I think I upgraded resteasy to the latest and used the jackson-2 provider and things were ok.. details
  • For jackson2, please find more answer updated in my questoin.. details
  • Can you give me an example how would i get JSON as a string from url i have, please ?. details
  • well I hope it works for you.. details
  • You could parse JSON into a POJO and then display the values in the POJO in the above mentioned format.. details
  • You need to use a JSON library like GSON , Jackson .. details
  • Lucky you!.. details
  • This got me pretty close, but for some reason I have extra quotes around the child objects.. details
  • Usually libraries like GSON or Jackson (mentioned above) offer some validations in this aspect avoiding mal-formed json input, and usually (I have worked with both) they do quite well on performance; also using a json lib would provide you with other functionality to extend in the future if you need.. details
  • Yes, it actually even works to define it as a private member, thanks to Jackson using Reflection to read/write the values.. details
  • Dan, thanks for your input.. details
  • also I found good workaround: URL_http://jira.codehaus.org/browse/JACKSON-861?focu sedCommentId=306450&page=com.atlassian.jira.plugin.system.issuetabpanels :comment-tabpanel#comment-306450.. details
  • It looks like it's not getting called because you're doing a GET but your method is a POST.. details
  • (addition to above: official numbers were included -- streaming Gson is faster than databinding, but not up to Jackson performance level).. details
  • Never ever try to parse JSON responses manually... use libraries!.. details
  • Can you give me an example how would i get JSON as a string from url i have, please ?. details
  • Thank you, this is how I was doing it I just hoped there was a better way.. details
  • Thanks for the answer, in this third solution, the example code which is used isColumnPositionMappingStrategy strat new ColumnPositionMappingStrategy();strat.setType(YourOrderBean.class);String[] columns new String[] {"name", "orderNumber", "id"}; // the fields to bind do in your JavaBeanstrat.setColumnMapping(columns);CsvToBean csv new CsvToBean();List list csv.parse(strat, yourReader);what exactly is yourReader here, and how do I input values to bind with bean?. details
  • Thank you, this is how I was doing it I just hoped there was a better way.. details
  • I tried to send this type of json string with jackson but it returns only null values,[{"id":62,"name":"projectname1","batchClassId":1283,"batchClassName":" sample_batchclass26","assetCount":0},{"id":8,"name":"projectname_tmp","batchCl assId":1283,"batchClassName":"sample_batchclass26","assetCount":0}].. details
  • When jackson deserializes from the request body all missing fields will be null so you don't even have to explicitly set values to null.. details
  • I am not quite sure why you would doubt explicit guarantee by author(s) of the library (I assume you refer to URL_http://wiki.fasterxml.com/JacksonFAQ , "Is ObjectMapper thread-safe?. details
  • Yes, given the "soft leniency mode" of gson parser we decided (for now) to complement with jackson parser to satisfy all of our requirements.. details
  • I can deserialize it fine with mapper.readValue(json, new TypeReference<List<ListingReplyExt>>() {}) where json is the String containing your json.. details
  • You can use it like PropertyNamingStrategy in Jackson.. details
  • URL_http://stackoverflow.com/questions/8179986/jackson-change - jsonignore-dynamically.. details
  • I mean i have to create 10,000 java objects for 1000 json results.I am looking for super fast and memory efficient way to do it as json i get is very huge.. details
  • Maybe they set the value directly by using reflection.. details
  • Never ever try to parse JSON responses manually... use libraries!.. details
  • Thank you very much!. details
  • That solved it!. details
  • Ok so this worked extremely well!. details
  • seems like jackson need them and gson doesn't right, this is a difference in performance.. details
  • I recommend you to use Jackson parser for server side manipulation of JSON objects.. details
  • Thanks This worked.. details
  • I don't know if this is helpful, but the JSON string you posted is not valid JSON... details
  • However, I think your solution looks like the best solution and therefore I accept it as the answer.. details
  • Thanks.. details
  • How are you posting the data, as part of a form, ajax request?. details
  • Could you show to us how your POJO class looks like?. details
  • Well, the simple part is parsing into maps and lists -- something that every reasonable JSON parser can do just fine.. details
  • Fair enough, I usually see { only, but others are allowed, I'll update the answer accordingly.. details
  • This does answer the question of how to preserve jackson type/field checking in JsonCreators in general, which might be the only useful question remaining.. details
  • Jackson is my personal favorite for simplicity and performance but it's a bit subjective.. details
  • There's special configuration you need to set to ignore those.. details
  • See if this can help you: URL_http://stackoverflow.com/questions/6541757/when - using-spring-mvc-for-rest-how-do-you-enable-jackson-to-pretty-print- render/6541956#6541956.. details
  • It works pretty good when your enum is a property in a class, for example.. details
  • Thanks for the pointer to readValueAsTree, too.. details
  • So when b isn't present in the JSON payload what value do you want the My_class b field to have?. details
  • There's special configuration you need to set to ignore those.. details
  • what framework are you using for jaxrs implementation ?, there are many frameworks out there which provide JSON support although only annotation is not enough, you will have to map appropriate providers but thats not a big deal.. details
  • Jackson ( URL_http://jackson.codehaus.org /) is known for being extremely fast and I believe now has native BSON support.. details
  • Although I expected an easier way, such as getting the parameter injected with an annotation (see my answer), I mark this as an answer, as this is still a better solution than decoding it manually with Jackson.. details
  • And with Jackson don't help me when I need to parse large files, so for my app GSON was the best, even more slow, can read large files.. details
  • Consumer doesn't care about what the class originally was; it just deserializes the data into a generic bean- like class implementing the Thing interface.. details
  • Simply use another subtype info property name like subtypeName and as subtype names use something like "ImageBookmark" and "EpubBookmark".. details
  • I appreciate the contribution ... keep it up mate .... details
  • Thanks!.. details
  • Here I only need to extract a single value, ideally without creation of additional classes.. details
  • Good to know as I am not confined to the jackson library.. details
  • Thanks for your quick answer!. details
  • What does the Color class look like?. details
  • I've tried it out and it works.. details
  • I am pretty sure I can help help you as I have used jpa, jersey and jackson extensively but I do not understand your question.. details
  • A god resource for tracking down where you can find a jar file is: URL_http://www.findjar.com/index.x Just type in the class you are looking for and a list of possible jars will come up.. details
  • Thanks a lot man it worked.. details
  • Correct -- if there is no object id to match, Jackson can not figure it out; so typically this option makes sense for serialize-only use case (where something else can piece it back together if need be).. details
  • Although that is easier, the annotation ensures the trimming only happens when the bean is created by JSON deserialization :).. details
  • Thank you so much HiJon89, I changed the version to the current one (1.9.12), and now I can have List value without any problem, thanks for the help!.. details
  • You should go with jackson-core, jackson-databind and jackson-annotations, all 2.2.x.. details
  • Thank you for your update - [BeanPropertyWriter]( URL_http://fasterxml.github.com /jackson-databind/javadoc/2.1.0/com/fasterxml/jackson/databind/ser/BeanPropert yWriter.html) does not have a withSerializer method.. details
  • if you solved your question, please add your solution as answer and then accept it - then it will be easier to find your solution via search because your question will be marked as solved.. details
  • Please help me to get retweet count of perticular tweet ?. details
  • Jackson is also easy to use.. details
  • I also added an init-param to my web.xml with a param-name of javax.ws.rs.Application and a param- value of com.another.package.MyApplication.. details
  • I don't want to create a special constructor like in the accepted answer because I don't want to touch the POJOs.How could I accomplish this using the custom deserializer route?Please, check my question: URL_http://stackoverflow.com/questions/19008853/jackson - deserialize-json-property-into-objectThanks!.. details
  • I use Jackson version 2.x.. details
  • I mean i have to create 10,000 java objects for 1000 json results.I am looking for super fast and memory efficient way to do it as json i get is very huge.. details
  • Consider looking into other JSON parsers like Jackson, which I think comes with that functionality out of the box.. details
  • When you say theNameOfTheRoot what are you expecting to see, and where do you expect Jackson to obtain that value from?. details
  • Jackson ( URL_http://jackson.codehaus.org /) is known for being extremely fast and I believe now has native BSON support.. details
  • According to the Jackson documentation this behaviour should be standard.. details
  • thank you so much.. details
  • If there is no value for an attribute it's setter is not called but the object is still created.. details
  • The system produces JSON just fine for other calls; MOXy has it built in.. details
  • That said, Jackson does better fit this question, so upvote anyway.. details
  • Right, that is another possible 1.x vs 2.x mismatch -- JAX-RS provider used also has to be compatible.. details
  • There we go!. details
  • Jackson supports comments if you enable that feature on the parser you use: ht tp://jackson.codehaus.org/1.8.8/javadoc/org/codehaus/jackson/JsonParser.Featur e.html.. details
  • This looks like a nice tutorial, but I haven't had a chance to go through it yet.. details
  • Yes true Josh, actually your approach does sound good also.. details
  • enjoying the stackoverflow error on stackoverflow.. details
  • However, I think your solution looks like the best solution and therefore I accept it as the answer.. details
  • There are JSON libraries for this (Jackson in particular is fantastic at "JSON edition").. details
  • Thanks for clear answer.. details
  • You can test with Gson or Jackson or [Java API for JSON]( URL_http://www.oracle.com/technetwork/articles/java/json-1973242.html ) and find which one is the best for you.. details
  • Right, that is another possible 1.x vs 2.x mismatch -- JAX-RS provider used also has to be compatible.. details
  • If you know Git and Maven you can download and run it as well.. details
  • Weeell here's something that I made up: URL_http://pastebin.com/w4thyPVK .. details
  • Correct.. details
  • please, add it.. details
  • I have 4 model classes, WikipediaResult for the top-level JSON, WikipediaQuery for the "query" object, WikipediaPages for the "pages" object and WikipediaPage for the dynamically named object.. details
  • The post part works correctly for other request, and i do imported Jackson.. details
  • In the meantime, if you/someone think of an easier approach.... details
  • Yeah, I think your "no" answer is the most correct here...I'll try pre- allocating a larger initial StringBuffer, and I'm going to look into using a streaming parser, Jackson.. details
  • @SotiriosDelimanolis: Ah okay that's clear.. details
  • Yep, thanks for the suggestion, I had an empty <mvc:annotation-driven> tag around the file.. details
  • Since you are using Jackson I would recommend to store your object as [JsonNode]( URL_http://fasterxml.github.com/jackson - databind/javadoc/2.1.0/com/fasterxml/jackson/databind/JsonNode.html).. details
  • Thanks Tala!. details
  • If the properties in Command are only some primitive type, like int, boolean, string... it works fine.. details
  • Thought that in order to leverage the auto json to object conversion provided by Jackson on classpath it was standard practice to use RequestBody.. details
  • I'm interested in server side of thing.. details
  • Correct.. details
  • It is your FRIEND in many cases, so if you are going to use vendor annotations you might as well embrace and extend rather than treating them at arms' length.. details
  • Thanks Jim.. details
  • Thanks StaxMan.. details
  • Many thanks for the usefull tips :).. details
  • Awesome.. details
  • Thanks @RaulRene for your confirmation.. details
  • Thanks a lot man it worked.. details
  • Jackson ( URL_http://jackson.codehaus.org /) is known for being extremely fast and I believe now has native BSON support.. details
  • Thanks Perception.. details
  • Thanks StaxMan.. details
  • Great!. details
  • Thanks.. details
  • Thanks for the feedback, I've updated my answer.. details
  • Great!. details
  • thank you a lot for the answer.. details
  • Thanks for the info.. details
  • The fact that I see construction makes me think that the web.xml is correct ... just missing one last piece.. details
  • Glad you found it helpful :).. details
  • Thank you, kapep, for your help.. details
  • I appreciate it.. details
  • Thanks!. details
  • But a project I'm working on has a really big JSON to manage and its structure changes a lot by time.. details
  • Thanks.. details
  • @Ryan this works great.. details
  • Thanks eugen.. details
  • I would recommend Jackson.. details
  • My Hero, Thanks worked like a charm!.. details
  • Good point.. details
  • Thanks R.J.. details
  • Interestingly when I tried to use the example given on URL_http://wiki.fasterxml.com/JacksonMixInAnnotations for this i.e setting it in a Module and using a SetUpContext.. details
  • My Hero, Thanks worked like a charm!.. details
  • Thanks!.. details
  • thank you so much.. details
  • Tom, thank you for the information.. details
  • I find jackson or simple json much easier to use then gson.. details
  • Thanks.. details
  • thanks.. details
  • I'd love to know how you found that ;).. details
  • I have solved it!. details
  • Thanks.. details
  • thanks.. details
  • I found this page very useful to learn how that works: URL_http://wiki.fasterxml.com/JacksonFeatureObjectIdentity .. details
  • Thank U SO MUCH.. details
  • Thanks a lot , it worked.. details
  • Hi Bart, Thanks you so much for your detailed answer.. details
  • Thanks, but this is not a solutions for me.. details
  • Thank you.. details
  • Thanks, I will have a look.. details
  • That looks promising, will take a look at it, thanks.. details
  • And with Jackson don't help me when I need to parse large files, so for my app GSON was the best, even more slow, can read large files.. details
  • Btw you can choose to serialize or not null fields (at least you can do this with Jackson: URL_http://stackoverflow.com/questions/11757487/how-to-tell-jackson - to-ignore-a-field-only-if-its-value-is-null ).. details
  • Thanks StaxMan.. details
  • I want to use Jackson and I couldn't find in the documentation where it explained the ResourceConfig class in the detail I would like but, but from the examples you linked to, and roaming the docs some more, I got it working.. details
  • ok, json it is, thnx for your opinion.. details
  • the process works fine.. details
  • Thanks.. details
  • If my answer was helpful, can you up vote it and/or select it as the correct answer?. details
  • Thanks.. details
  • You are right it works, and that's what I'm doing for the moment, but I was wondering if there were a runtime way of doing that.... details
  • for me this doesn't seem to work.. thnx!.. details
  • In that case I don't know enough about Jackson to help.. details
  • I'm sure that this is not the official way but it's very clever!.. details
  • @Stax: Jackson is simply extremely performant :) Besides, don't forget that Gson does/can more than only serializing.. details
  • (addition to above: official numbers were included -- streaming Gson is faster than databinding, but not up to Jackson performance level).. details
  • thanks alot..but i could not change the json cos its a fixed output from an API.. details
  • Usually libraries like GSON or Jackson (mentioned above) offer some validations in this aspect avoiding mal-formed json input, and usually (I have worked with both) they do quite well on performance; also using a json lib would provide you with other functionality to extend in the future if you need.. details
  • What would you expect Jackson to map the value of b to in both situations?. details
  • Is it possible in Jackson to read the values using similar x-path way?. details
  • EnumMaps are serialized using a [specialized serializer]( URL_http://fasterxml.github.io/jackson-databind/javadoc/2.0.0/com/fast erxml/jackson/databind/ser/std/EnumMapSerializer.html), and hence your custom serializer won't be picked up while serializing the keys.. details
  • Thanks.When you use @JsonIdentityReference(alwaysAsId=true), Jackson can't Deserialize it back, right?Is it possible to achieve the same functionality by writing custom Serializer/Deserializer?. details
  • In your scenario Period is a key in a map or something like that.. details
  • This works!. details
  • Step 1: use jackson URL_http://wiki.fasterxml.com/JacksonHome Step 2: Thank me later.. details
  • I currently work with Jackson and works fine in both code readability and performance.. details
  • The mapper.enableDefaultTypeing() thing almost works.. details
  • I'm also using com.fasterxml.jackson.dataformat jackson-dataformat-csv 2.2.3 which seems to be importing it as well.. details
  • Thank you so much!. details
  • Yeah, my apologies, it's been resolved in here URL_http://stackoverflow.com/questions/17400850/is-jackson-really-unable-to - deserialize-json-into-a-generic-type.. details
  • Please check if you have Jackson library included.. details
  • I've ended with jackson but it was not an easy go, again.. details
  • if yes please add it as answer.. details
  • Thank you, this is how I was doing it I just hoped there was a better way.. details
  • This solution seems very interesting but i am using org.codehaus.jackson.map.DeserializationConfig not com.fasterxml.jackson.databind.DeserializationFeature and it doesn't have this configuration!.. details
  • Ah ok. Like I said, Jackson can figure out type on its own without wrapping, but maybe that's not the case with other libs.Glad to know you got things working either way.. details
  • There is a simmilar question here: URL_http://stackoverflow.com/questions/6176881 /how-do-i-make-jacksons-build-method-pretty-print-its-json-output (NOT a duplicate in my opinion) that can help you.. details
  • The reason for suggestion is that on the JACKSON side, I have seen that meta-data is injected using '@' (like @class com....).. details
  • Hi Bart, Thanks you so much for your detailed answer.. details
  • You should go with jackson-core, jackson-databind and jackson-annotations, all 2.2.x.. details
  • jackson is great.. details
  • You should go with jackson-core, jackson-databind and jackson-annotations, all 2.2.x.. details
  • Interestingly when I tried to use the example given on URL_http://wiki.fasterxml.com/JacksonMixInAnnotations for this i.e setting it in a Module and using a SetUpContext.. details
  • It might be easier to use the ObjectMapper method that gives you a JsonNode, cast it to an ObjectNode and modify that.. details
  • After that I have updated Jackson library to version 2.2.2 (com.fasterxml.jackson) and it works really good.. details
  • See if this can help you: URL_http://stackoverflow.com/questions/6541757/when - using-spring-mvc-for-rest-how-do-you-enable-jackson-to-pretty-print- render/6541956#6541956.. details
  • seems like jackson need them and gson doesn't right, this is a difference in performance.. details
  • Thanks for the pointer to readValueAsTree, too.. details
  • Hi your answer worked as well but Kevin's answer made more sense to me.. details
  • Thanks.. details
  • Hey man, thank you very much... the way that I was calling was wrong...Instead of that, now I'm calling like this: CODETERM1 .. details
  • Thank you also for noticing the , !. details
  • I'm pretty sure it is public.. details
  • Thank you, the "great solution" is very helpful.. details
  • Thanks that worked for me.. details
  • I currently work with Jackson and works fine in both code readability and performance.. details
  • @StaxMan: I am a bit concerned if ObjectMapper is still thread-safe after [ ObjectMapper#setDateFormat()]( URL_http://jackson.codehaus.org/1.9.0/javadoc/org/c odehaus/jackson/map/ObjectMapper.html#setDateFormat%28java.text.DateFormat%29) is called.. details
  • Thanks that helped me :).. details
  • I don't know if this is helpful, but the JSON string you posted is not valid JSON... details
  • With whatever you are using to add dependencies (like Spring) to your project or web app, just add the Jackson libraries in the same way.. details
  • I guess I can use something like:JavaType listingType mapper.getTypeFactory().constructParametricType(Listing.class, Link.class); JavaType jsonType mapper.getTypeFactory().constructParametricType(Thing.class, listingType);'.. details
  • I used Gson in a standalone fashion and moved on to Jackson b/c it's the default provider for my JAX-RS implementation.. details
  • @Ryan this works great.. details
  • Although that is easier, the annotation ensures the trimming only happens when the bean is created by JSON deserialization :).. details
  • I'm also using com.fasterxml.jackson.dataformat jackson-dataformat-csv 2.2.3 which seems to be importing it as well.. details
  • Can you please post your final working solution?. details
  • I'm not familiar enough with Scala to say, but my guess is that Jackson has a built-in converter that knows how to handle the conversion for the Java type but not Scala's.. details
  • Step 1: use jackson URL_http://wiki.fasterxml.com/JacksonHome Step 2: Thank me later.. details
  • And if, let's say, "movieName" has a value, "movieTitle" will be always emtpty?. details
  • Yeah, my apologies, it's been resolved in here URL_http://stackoverflow.com/questions/17400850/is-jackson-really-unable-to - deserialize-json-into-a-generic-type.. details
  • I just added the Jackson .jars to my project and works perfectly.. details
  • Thank you, the "great solution" is very helpful.. details
  • I don't know if it's helpful or not, but if you remove the annotation @JsonTypeInfo(use JsonTypeInfo.Id.NAME, include JsonTypeInfo.As.PROPERTY, property "mimeType") from AbstractBookmarkJsonModel then you will have only one mimeType in your json.. details
  • That'd make it easier to see what gets generated.. details
  • Marvin, all performance benchmarks that I have seen that are NOT done by authors of specific JSON library point to either Jackson being the fastest, or in some cases FastJSON ( URL_https://github.com/AlibabaTech/fastjson) .. details
  • seems like jackson needs them and gson doesn't.. details
  • Thank you, the "great solution" is very helpful.. details
  • @nutlike You are right!I just figure out this too!.. details
  • Interestingly when I tried to use the example given on URL_http://wiki.fasterxml.com/JacksonMixInAnnotations for this i.e setting it in a Module and using a SetUpContext.. details
  • This works perfectly for my purposes.. details
  • You have dependency on jersey-media-json-jackson or directly on Jackson 2.x and no other JSON provider (i.e.. details
  • Just a thought: Did you consider to use mixin-annotations for the pretty printed JSON instead?. details
  • EDIT:The goal I want to achieve with this to have a long JSON format which is good for debugging (human-readable) and have a compressed format which is providing the smallest footprint.. details
  • Thank you!. details
  • A post by Jason about json, talking about jackson and then resolved with some code from Gson.. details
  • Just output Object Literals!.. details
  • Jackson: Deserlization of Object Array having different Type Items I am converting an object array to json, that works fine.. details
  • CODETERM2 converted to CODETERM3 CODETERM4 converted to CODETERM5 kindly, help me to main the datatype of the object array without using pojo class, i need to return multi dimension array of object from my server to client .. details
  • I got it working using the tree model method.. details
  • That's what I feared as well :)Thank you for your answer.. details
  • That's what I feared as well :)Thank you for your answer.. details
  • This works for Java collections, however it turns out that the Scala module doesn't support this use case correctly.. details
  • I went ahead and filed this: URL_https://github.com/FasterXML/jackson-dataformat-xml/issues/90 [ URL_https://github.com/FasterXML/jackson-dataformat-xml/issues/90 ] to add something that should work; feel free to add comments, suggestions.. details
  • I went ahead and filed this: URL_https://github.com/FasterXML/jackson-dataformat-xml/issues/90 [ URL_https://github.com/FasterXML/jackson-dataformat-xml/issues/90 ] to add something that should work; feel free to add comments, suggestions.. details
  • I went ahead and filed this: URL_https://github.com/FasterXML/jackson-dataformat-xml/issues/90 [ URL_https://github.com/FasterXML/jackson-dataformat-xml/issues/90 ] to add something that should work; feel free to add comments, suggestions.. details
  • I went ahead and filed this: URL_https://github.com/FasterXML/jackson-dataformat-xml/issues/90 [ URL_https://github.com/FasterXML/jackson-dataformat-xml/issues/90 ] to add something that should work; feel free to add comments, suggestions.. details
  • Which is nice, but I need variable CODETERM1 to be attribute of CODETERM2 and then I need to add xmlns and xsi attributes to the root element so the XML result looks like this CODESNIPPET_JAVA4 .. details
  • For now, Jackson looks like the most convenient way.. details
  • Thanks for help .. details
  • I am looking for best solution how to convert POJO or JSON to XML with all atttributes in correct places.. details
  • I did use that but it will not help for the unquoted values or for unquoted numeric keys (e.g.. details
  • Since you're using Jackson 1.9.x to (un)marshall JSON, make sure you have CODETERM1 module in your dependency list and that you're registering URL_htt ps://jersey.java.net/apidocs/latest/jersey/org/glassfish/jersey/jackson/Jackso nFeature.html [JacksonFeature] in your application, i.e.. details
  • Please let me know how I can deserialize directly to Map[String, Color] successfully.. details
  • Why is the value of my resulting Map another Map rather than a Color object?. details
  • Why is the value of my resulting Map another Map rather than a Color object?. details
  • If I just pass a Color in directly without the code to Color map, deserialization works as expected.. details
  • We upgraded to Jackson 2.1.0 and were able to get the hibernate module working.. details
  • Thanks.. details
  • URL_https://github.com/FasterXML/jackson [Jackson] is among the top of such libraries in terms of performance, efficiency, versatility and reliability, plus it is published under the commercial-friendly CODETERM1 .. details
  • Following is a simple implementation of the requested answer in URL_https://github.com/FasterXML/jackson [Jackson] .. details
  • Following is a simple implementation of the requested answer in URL_https://github.com/FasterXML/jackson [Jackson] .. details
  • URL_https://github.com/FasterXML/jackson [Jackson] is among the top of such libraries in terms of performance, efficiency, versatility and reliability, plus it is published under the commercial-friendly CODETERM1 .. details
  • Following is a simple implementation of the requested answer in URL_https://github.com/FasterXML/jackson [Jackson] .. details
  • URL_https://github.com/FasterXML/jackson [Jackson] is among the top of such libraries in terms of performance, efficiency, versatility and reliability, plus it is published under the commercial-friendly CODETERM1 .. details
  • Following is a simple implementation of the requested answer in URL_https://github.com/FasterXML/jackson [Jackson] .. details
  • URL_https://github.com/FasterXML/jackson [Jackson] is among the top of such libraries in terms of performance, efficiency, versatility and reliability, plus it is published under the commercial-friendly CODETERM1 .. details
  • The simplest way of doing this is to use JAXB to create the tooled version of the structure (with something like Jackson as the serialization engine) and then to create a factory method somewhere that will make the structure for you without you having to specify anything extra yourself.. details
  • Searching SO and Google for this has not been helpful, and thought I'd bring this to the geniuses at SO for some help.. details
  • Any help would be most appreciated, (de)serialization with JSON and XML with json.org, Jackson, and JAXB has turned into a black and bottomless pit that has consumed almost a month of my life.. details
  • These don't really make good use of the full deserialization that can be done, but you could use them to parse out an element of a json array, and pass that item to a typical JSON object mapper, (like Jackson, GSON, etc).. details
  • Parsing dynamically generated JSON object names with Jackson.. details
  • Flawless thank you guys, the easiest way was to add jackson-core 2.1.1 as an explicit dependency in my pom, if that is not the best way I let me know.. details
  • Flawless thank you guys, the easiest way was to add jackson-core 2.1.1 as an explicit dependency in my pom, if that is not the best way I let me know.. details
  • A bit more elegant than excludes.. details
  • Please post more representative code, and verify which Jackson JAR's are bundled together with your app.. details
  • Too me it looks like you have a different version of the core Jackson library in your classpath.. details
  • You're resource should look something like the following.. details
  • If it is then only the Id property is used, otherwise a passed in CODETERM3 is used to serialize the value.. details
  • You're resource should look something like the following.. details
  • If it is then only the Id property is used, otherwise a passed in CODETERM3 is used to serialize the value.. details
  • I appreciate I could roll my own implementation of this behaviour with streaming JSON APIs from Jackson, GSON etc.. details
  • Thanks for this explanation!. details
  • It helped me a lot!.. details
  • I'm sure it does because once you have a JsonNode instance you can get objects in the json like: CODESNIPPET_JAVA1 .. details
  • Obviously, in a web project, like a Spring web services project, it is important to have POJO's, but just for unit tests couldn't you just use a generic Jackson JsonNode object?. details
  • Jackson-databind (at least 2.1.3) already contains special ToStringSerializer, see my answer.. details
  • Jackson-databind (at least 2.1.3) already contains special ToStringSerializer, see my answer.. details
  • You can use jackson with inner (nested) classes, serialization works just fine in this case.. details
  • At this did not work for me (an undecipherable compile time error), but it gave me a good hint where to go - if I add this:@JsonSerialize(include= JsonSerialize.Inclusion.NON_NULL)On top of my serializable classes, all works well.. details
  • At this did not work for me (an undecipherable compile time error), but it gave me a good hint where to go - if I add this:@JsonSerialize(include= JsonSerialize.Inclusion.NON_NULL)On top of my serializable classes, all works well.. details
  • At this did not work for me (an undecipherable compile time error), but it gave me a good hint where to go - if I add this:@JsonSerialize(include= JsonSerialize.Inclusion.NON_NULL)On top of my serializable classes, all works well.. details
  • At this did not work for me (an undecipherable compile time error), but it gave me a good hint where to go - if I add this:@JsonSerialize(include= JsonSerialize.Inclusion.NON_NULL)On top of my serializable classes, all works well.. details
  • As an advantage, the URL_https://github.com/FasterXML/jackson [Jackson-library] is automatically imported as a transitive dependency of the xchange-mtgox maven artifact.. details
  • As an advantage, the URL_https://github.com/FasterXML/jackson [Jackson-library] is automatically imported as a transitive dependency of the xchange-mtgox maven artifact.. details
  • Converting from CODETERM4 to one of these classes is easy with the Jackson CODETERM5 .. details
  • If you're not tied with Jackson, you can use the handy google-gson library as an alternative.. details
  • JSON is a very simple format, so it should not be hard to create the CODETERM6 by hand.. details
  • Care to explain why?. details
  • Care to explain why?. details
  • Care to explain why?. details
  • You can take a look at URL_http://docs.spring.io/spring/docs/3.0.x/api/org/spr ingframework/web/servlet/view/json/MappingJacksonJsonView.html#setPrefixJson%2 8boolean%29 [Spring-JSON-Mapping] also.. details
  • Jackson has supported identity resolution since 2.0, in order to better handle circular dependencies - URL_http://wiki.fasterxml.com/JacksonFeatureObjectIdentity .. details
  • Jackson has supported identity resolution since 2.0, in order to better handle circular dependencies - URL_http://wiki.fasterxml.com/JacksonFeatureObjectIdentity .. details
  • Last time I checked (August 2012) jackson suffered from problems resolving circular dependencies (take a look on URL_http://stackoverflow.com/questions/3340485/how-to-solve-circular-reference-in - json-serializer-caused-by-hibernate-bidirecti).. details
  • I've used both GSON and Jackson and agree that they are easy to use and efficient.. details
  • I've used both GSON and Jackson and agree that they are easy to use and efficient.. details
  • Thanks.. details
  • You will need some library like URL_http://jackson.codehaus.org/ [Jackson] to do the parsing for your.. details
  • You will need some library like URL_http://jackson.codehaus.org/ [Jackson] to do the parsing for your.. details
  • If I read the URL_http://docs.spring.io/spring/docs/4.0.x/javadoc-api/org/spri ngframework/http/converter/json/MappingJackson2HttpMessageConverter.html [MappingJackson2HttpMessageConverter-docs] correctly, Jackson JSON conversion is triggered by Content-Type CODETERM3 , which I obviously cannot use since this is a form POST (and I don't control the POSTing part).. details
  • I'll do that thanks.. details
  • If you aren't having any luck with your current version of Jackson you might want to look to upgrade.. details
  • Thanks, I've updated the version of Jackson and thats fine now :).. details
  • It's basically no longer relevant but would be nice to have a solid answer here for future folks.. details
  • Thanks for the followup.. details
  • fortunately "org.codehaus.jackson.map.MappingJsonFactory" does implement toString properly.. details
  • It compares Boon, Jackson, Smart JSON and GSON.. details
  • It compares Boon, Jackson, Smart JSON and GSON.. details
  • Thanks for answering!. details
  • Thanks for answering!. details
  • For conversion, I found the CODETERM6 from the Jackson library, which does a nice job here: CODESNIPPET_JAVA1 .. details
  • It is better to use a JSON parser like Jackson Mapper to parse a JSON String.. details
  • We can assume that the length of any key-value pair in the given json object will be less than given character count limit.. details
  • I would have to convert the json object into Array of multiple json objects, if the number of characters in the JSON object exceeds the specified limit.. details
  • Since smtp has a character limit of 1000 for each header value.. details
  • I have to break it up into multiple json objects, each json object will be one header value.. details
  • FYI: Here is the reference for the correct example code: URL_http://wiki.fasterxml.com/JacksonFeatureModules [ URL_http://wiki.fasterxml.com/JacksonFeatureModules ] Hope this helps!. details
  • FYI: Here is the reference for the correct example code: URL_http://wiki.fasterxml.com/JacksonFeatureModules [ URL_http://wiki.fasterxml.com/JacksonFeatureModules ] Hope this helps!. details
  • If I understood everything correctly, Jackson needs a class to serialize, and had trouble when handed a list.. details
  • If there's a better way I'll be curious to see it myself!. details
  • Hope that helps!. details
  • You can use libraries like URL_http://jackson.codehaus.org/ [Jackson] to do the same.. details
  • You can use libraries like URL_http://jackson.codehaus.org/ [Jackson] to do the same.. details
  • Welcome to stackoverflow.. details
  • Thanks!.. details
  • Worked great.. details
  • Thank you very much for this explanation, especially for pointing out that the first two examples are identical in their behavior since i was not quite aware of that yet.. details
  • @ring0 thank you for your help.. details
  • I should clarify, as Perception says, JAXB was originally about mapping between Java and XML, pragmatically may implementations of JAXB also support mapping to to JSON: for example URL_http://wiki.fasterxml.com/JacksonJAXBAnnotations .. details
  • JSON binding with JAXB and Jackson in standalone JavaSE app.. details
  • Just add something like: CODESNIPPET_JAVA1 .. details
  • See me comment to question please.. details
  • Tom, thank you for reply.. details
  • Hey, that sounds like it will probably fix my issue.. details
  • I'll take a look!.. details
  • Hey, that sounds like it will probably fix my issue.. details
  • I'll take a look!.. details
  • it would be helpful if you posted the actual class hierarchy - the code above does not look like it would compile.. details
  • Your recursive loop is User -> Challenge -> User -> Challenge ... to infinity and beyond.. details
  • Just a guess, but the JSON parser probably does not like recursive loops.. details
  • Thanks for the suggestion, Srinivas.. details
  • Thanks!.. details
  • All fine.For serialization to JSON this annotation according the documentation of Jackson is supported but so far no luck to make it work for JSON (XML is fine).. details
  • Because of the XML (as I want the same behaviour for XML as well) there is necessity to use @XmlEnumValue etc.. details
  • Is there an easy way to tell Jackson to use a special method to compute the value of the CODETERM3 and CODETERM4 fields automatically?. details
  • Let's say I have a JSON object hierarchy like the following: CODESNIPPET_JAVA1 .. details
  • Thanks for noticing that, but that's just a typo in the question I posted.. details
  • Jackson's Mix-In facility may well suit your needs.. details
  • Check your JsonSerialize.Inclusion or JsonInclude.Include (if using Jackson 2.x) enum for a NON_DEFAULT option, it looks like it's been around longer than I thought.. details
  • That's exactly what I was looking for!. details
  • You could subclass CODETERM7 and take the CODETERM8 parameter into account when caching value serializers, but that's probably not the easiest way to solve your problem.. details
  • You could subclass CODETERM7 and take the CODETERM8 parameter into account when caching value serializers, but that's probably not the easiest way to solve your problem.. details
  • Thanks!. details
  • I have been looking around the internet to try and find the best Java to Json library.. details
  • The two libraries I am interested in are: Jackson Gson I am leaning towards using Gson, but would love some _up-to-date_ help in comparing the two since both libraries are constantly being updated.. details
  • I'm trying to send JSON object over HTTP.Everything works fine unless the the JSON is big.. details
  • Let's assume that we have a map like CODESNIPPET_JAVA1 .. details
  • I know we can save type information for each Object, but what if for nested beans ?. details
  • is there a generic deserializer or something like that for it ?. details
  • Note, if I change the signature of one of the methods to another collection type so they are different - CODETERM8 for example - the serialization works.. details
  • Thanks in advance.. details
  • Seems like jsonapi.org is a much referred to standard for several frameworks / languages.. details
  • Many thanks!. details
  • Any help / pointers would be greatly appreciated.. details
  • Serializer and registration look correct to me, so I think the problem lies in xml configuration.. details
  • Let's say I have a simple class Person CODESNIPPET_JAVA1 .. details
  • Best Practice for Jackson collection deserialisation.. details
  • I'll write here every possible file i've changed while trying to solve this, with the hope it will help someone to help me.At the moment i don't really care how will it work as long as it will work, i do understand whoever that i should probably get this working with either Jackson or Gson.. details
  • That's all what i currently have, i hope it helps.. details
  • Thank you so very much .. details
  • Jackson was really easy to plugin to our app.. details
  • You can verify that your json is correct by passing it into CODETERM2 .. details
  • Here is a code snippet for PTH in Jackson 1.x.. details
  • On OS X, you can copy the json into your clipboard and pass it to CODETERM3 as follows: CODESNIPPET_JAVA4 .. details
  • This will give Jackson enough type information to deserialize your objects.. details
  • Thank you.. details
  • Thanks a lot StaxMan... details
  • As to Gson vs Jackson: just note that code you gave is different from original one -- you are using POJOs (which makes sense!. details
  • I'm using Jackson to deserialize a JSON that could contain null values for Map variables.. details
  • I'm using Jackson to deserialize a JSON that could contain null values for Map variables.. details
  • What I want is if the value is null, I want the map to be an empty HashMap instead of null.. details
  • With the reference JAXB implementation this works fine in both XML and JSON (we were using Jackson for the JSON logic).. details
  • Like I said, this does not happen with the reference (i.e.. details
  • Thanks in advance for your help.. details
  • Then use Jackson, which has JAXB support, by adding all the libraries to your project and adding this configuration: CODESNIPPET_JAVA2 .. details
  • Would you be satisfied with a CODETERM1 from Jackson?. details
  • Is there a class in CODETERM3 or some other library ( CODETERM4 or CODETERM5 ) that produces a tree, or allows one to cycle through the json elements and obtain the actual key names in addition to the values?. details
  • can you please tell me , on what area i can find the overhead between two test.. details
  • But actually , I have used this tool first time and I am not able to find the difference, accurately.. details
  • I store some of my Model's information in json files and I have to support a couple of version of my model.. details
  • Unless there's a faster way to do it, I will probably end up simply manually applying the CODETERM3 to my Model .. details
  • Unless there's a faster way to do it, I will probably end up simply manually applying the CODETERM3 to my Model .. details
  • Thanks!. details
  • Please refer URL_http://jackson.codehaus.org/1.7.9/javadoc/org/codehaus/jackso n/map/ObjectMapper.html [documentation] for more details.. details
  • Please refer URL_http://jackson.codehaus.org/1.7.9/javadoc/org/codehaus/jackso n/map/ObjectMapper.html [documentation] for more details.. details
  • I'm able to pass in a CODETERM2 sub class to CODETERM3 and everything works correctly.. details
  • Note that I pulled this from the following answer: URL_http://stackoverflow.com/questions/6846244/jackson-and-generic-type- reference [Jackson-and-generic-type-reference] As of Jackson 1.3 (a while back) they recommend you use CODETERM1 .. details
  • Note that I pulled this from the following answer: URL_http://stackoverflow.com/questions/6846244/jackson-and-generic-type- reference [Jackson-and-generic-type-reference] As of Jackson 1.3 (a while back) they recommend you use CODETERM1 .. details
  • How can this be accomplished in Jackson 2.2 + .. details
  • Thx!. details
  • I was considering using some third-party libraries like Jackson to store all the data and then return a Jackson object to the client (Jersey can transfer a Jackson object to right JSON format data automatically).. details
  • Deserializing a JSON array (collection) to a Java object (Zoo -- that is not a collection) won't work (without special handling).. details
  • Deserializing a JSON array (collection) to a Java object (Zoo -- that is not a collection) won't work (without special handling).. details
  • See URL_http://jira.codehaus.org/browse/JACKSON-315 that is closed as WON'T FIX.. details
  • Add the full stacktrace please, and the JSON you are retrieving from the web service.. details
  • Add the full stacktrace please, and the JSON you are retrieving from the web service.. details
  • Add the full stacktrace please, and the JSON you are retrieving from the web service.. details
  • Examples taken from the ever useful URL_http://www.mkyong.com/java/how-to- convert-java-map-to-from-json-jackson/ [Mkyong.com] .. details
  • Examples taken from the ever useful URL_http://www.mkyong.com/java/how-to- convert-java-map-to-from-json-jackson/ [Mkyong.com] .. details
  • I want to use Jackson to create simple JSON objects where I am not required to build custom classes for every response but rather a premade object similar to the code below.. details
  • Use Jackson to create simple objects like JSON.org.. details
  • I have a feeling this is outside Jacksons realm and they do not support operations like this.. details
  • But actually I should use the Transaction class from 3rd party jar, which is exact like above, but has no @JsonRootName("transaction") annotation.. details
  • thanks.. details
  • I will check this works when I get back to work later in the new year.. details
  • Thanks @ProgrammerBruce for your further help.. details
  • Everything works perfectly when parsing a json response into this asset POJO.. details
  • save this xml in sample file sample-xml.xml CODESNIPPET_JAVA2 .. details
  • If you'd rather have all elements in one map, you could make such a map like: CODESNIPPET_JAVA5 .. details
  • But that is neither working.. details
  • But that is neither working.. details
  • If you're not married to Jackson, I believe something similar to this can be accomplished using FlexJSON.. details
  • It looks like timezone information is lost.. details
  • I think, mixins is the best solution, because it provide more control.. details
  • I guess I just assumed the same would be true in JSON/Jackson-land.. details
  • How many database tables map back to POJOs perfectly?. details
  • What is the best way to deserialize JSON strings with different formats to instances of the same Java class using Jackson?. details
  • I went with Jackson - it is fast and easy to use Another interesting Link - URL_http://stackoverflow.com/questions/338586/a-better-java-json-library .. details
  • How do I marshall nested key,value pairs into JSON with Camel and Jackson library?. details
  • I'm a visual learner, so a simple example would be helpful.. details
  • I have a Java project that currently returns a map to Camel without any nested key,value pairs, and the Jackson library marshalls it just fine into JSON using the Jackson library.. details
  • So, for example if I specify visibilities for key1, and key2, but not key3 I want to get JSON out that looks like this: CODESNIPPET_JAVA3 .. details
  • and then tried adding nested key,values for some keys with an ArrayList using URL_http://examples.javacodegeeks.com/core-java/json/jackson/convert-java-map- to-from-json-using-jackson-example/ [ URL_http://examples.javacodegeeks.com/core - java/json/jackson/convert-java-map-to-from-json-using-jackson-example/] for reference, but realized that this just gives me a bunch of nested values under a key, not a bunch of nested key,value pairs.. details
  • For example if I put the following two key,values into a demoMap: CODESNIPPET_JAVA1 .. details
  • However, now some of my key,value entries will have an optional visibility that I need to put as a nested key value in my map.. details
  • Specifically, this annotation has a set of parameters that can be used for different situations: CODETERM5 for collections or map values (supported) CODETERM6 for Map keys (currently unsupported) Examples of how to use this annotation URL_https://github.com/FasterXML /jackson-module-scala/blob/master/src/test/scala/com/fasterxml/jackson/module/ scala/deser/PrimitiveContainerTest.scala [can-be-found-in-the-tests-directory] .. details
  • Specifically, this annotation has a set of parameters that can be used for different situations: CODETERM5 for collections or map values (supported) CODETERM6 for Map keys (currently unsupported) Examples of how to use this annotation URL_https://github.com/FasterXML /jackson-module-scala/blob/master/src/test/scala/com/fasterxml/jackson/module/ scala/deser/PrimitiveContainerTest.scala [can-be-found-in-the-tests-directory] .. details
  • Where does this different kind of behaviour come from?. details
  • Where does this different kind of behaviour come from?. details
  • Hope this helps!. details
  • Instead, I want it to serialize it like CODETERM3 .. details
  • For my project, Spring 3.0.5 works seamlessly with Jackson 1.6.3 (jackson- core-asl-1.6.3.jar, jackson-mapper-asl-1.6.3.jar) .. details
  • Your solution is more clean and correct for the first look.. details
  • Your solution is more clean and correct for the first look.. details
  • In order to parse the content from the .json file I use URL_http://wiki.fasterxml.com/JacksonHome [Jackson-2.2.x] and prepared the following method: CODESNIPPET_JAVA4 .. details
  • In order to parse the content from the .json file I use URL_http://wiki.fasterxml.com/JacksonHome [Jackson-2.2.x] and prepared the following method: CODESNIPPET_JAVA4 .. details
  • I WANT to do something like this: CODESNIPPET_JAVA2 .. details
  • I use jackson and it's quite simple.. details
  • You need to create something like this CODESNIPPET_JAVA1 .. details
  • If you want to keep JSON, look for other frameworks like "json-smart": URL_http://code.google.com/p/json-smart/ [ URL_http://code.google.com/p/json - smart/] They claim to be 2-3 times faster than Jackson.. details
  • If you want to keep JSON, look for other frameworks like "json-smart": URL_http://code.google.com/p/json-smart/ [ URL_http://code.google.com/p/json - smart/] They claim to be 2-3 times faster than Jackson.. details
  • So that you end up with the CODETERM1 property of the CODETERM2 instances set to CODETERM3 and CODETERM4 , respectively?. details
  • Given a structure like this: CODESNIPPET_JAVA1 .. details
  • It seems that RESTEasy used to use Jettison for JSON serialization, but from what I've been reading they've switch to Jackson ... all of this has made googling for help pretty hit or miss.. details
  • the rest works fine.. details
  • A comparison between Jackson and Gson features can be found URL_http://programmerbruce.blogspot.it/2011/06/gson-v-jackson.html [here] , you may be interested in setter/getter part.. details
  • I'm using Jackson elsewhere in my application for parsing, but for serialising I haven't found as simple a means of generating JSON.. details
  • Please provide an example to prove how simple these libraries are to use.. details
  • Please provide an example to prove how simple these libraries are to use.. details
  • Standalone Demo Code Below is some demo code you can run in Java SE to see that everything works: Demo CODESNIPPET_JAVA4 .. details
  • My approach so far is, to read the JSON String into a CODETERM2 and get the values from there.. details
  • I'd like to parse this response into a Java object: CODESNIPPET_JAVA2 .. details
  • The JSON properties should be mapped like this: CODESNIPPET_JAVA3 .. details
  • But I think, this is the most non-elegant way, ever.. details
  • But I think, this is the most non-elegant way, ever.. details
  • Unfortunately, I'm not able to find a nice, elegant way to do this using Annotations.. details
  • I tried to use Jackson with JAXB module to convert JAXB-object into JSON, which works pretty fine with storing the data.. details
  • Is there a way to set the value of variable CODETERM9 first?. details
  • I have a json like CODESNIPPET_JAVA1 .. details
  • So far my CODETERM5 class is like this CODESNIPPET_JAVA3 .. details
  • I'm working on client side, server is not my business :(.. details
  • Thanks for putting me on the right track, found some article, too: URL_http://programmerbruce.blogspot.de/2011/05/deserialize-json-with-jackson - into.html.. details
  • If your ObjectMap Provider is in your JaxRS application it will be resolved [by this code]( URL_https://github.com/FasterXML /jackson-jaxrs-json-provider/blob/jackson-jaxrs-json-provider-2.1.2/src/main/j ava/com/fasterxml/jackson/jaxrs/json/JacksonJsonProvider.java#L627).. details
  • If your ObjectMap Provider is in your JaxRS application it will be resolved [by this code]( URL_https://github.com/FasterXML /jackson-jaxrs-json-provider/blob/jackson-jaxrs-json-provider-2.1.2/src/main/j ava/com/fasterxml/jackson/jaxrs/json/JacksonJsonProvider.java#L627).. details
  • Serialization works very well.. details
  • Cheers .. details
  • I have tried CODETERM1 & CODETERM2 with no success.. details
  • I need a simple functionality.When serializing a java Bean which has a dependency another bean, serialize only the primary bean and one field of the other bean(usual case of foreign key, so serialize the id of the other bean).. details
  • To reduce serialized data length I want them to serialized with only id's if the value is equal to 60.. details
  • I am using Object Mapper and would like to exluce certain fields if they have specific values.. details
  • Excluding specific values from jackson.. details
  • And lets say the value is most probably will be 60.. details
  • Assume that I have an object like following: CODESNIPPET_JAVA1 .. details
  • Thank you so much!. details
  • I'll try it tomorrow and post the results!.. details
  • Thanks Charlie, where would this new class, JacksonObjectMapProvider, get called?. details
  • We actually did some performance tests and found jackson considerably faster than gson.. details
  • If I had to compare I would say Gson is faster and easier to use than Jackson.. details
  • If I had to compare I would say Gson is faster and easier to use than Jackson.. details
  • A difference is that Jackson uses getters/setters by default, whilst Gson works with reflection.. details
  • I've never played with it, but would be interested to see the library size and performance comparison to gson, jackson, and native android json handling code.. details
  • I've never played with it, but would be interested to see the library size and performance comparison to gson, jackson, and native android json handling code.. details
  • For instance, for a value of type CODETERM6 (a subtype of CODETERM7 ), Jackson will explicitly add the type name CODETERM8 , in the resulting JSON.. details
  • I have a POJO that contains a CODETERM2 field, with polymorphic values.. details
  • By using the CODETERM5 annotation, Jackson properly serializes class names in the resulting JSON, making it possible to deserialize values into the appropriate concrete type.. details
  • The above example would look like this: CODESNIPPET_JAVA3 .. details
  • Map values can take several types, mainly CODETERM3 , other model classes, and particularly other JSON objects represented as CODETERM4 .. details
  • What I wish to achieve is a special case** where, when a CODETERM9 or one of its subtypes are encountered as a map value, the JSON object is serialised without explicitly adding the type name into.. details
  • Thanks.. details
  • For my application, I have successfully created a factory that does what my old property editor did before - converting id's back to entities.. details
  • but you may want to have a look at standard Jackson serializers.. details
  • This is necessary because CODETERM4 inclusion may actually change these (I can elaborate on this, but for now that should be enough).. details
  • and if you need to deserialize, you can use CODETERM6 like: CODESNIPPET_JAVA4 .. details
  • I suppose the truth is somewhere here.. details
  • Please help with some advices.. details
  • This is working partialy because not all fields are included in JSON after serialize.. details
  • This is the easiest (and, I believe, most correct) way to do something like this.. details
  • This can be accomplished through Jackson, however, with a few annotations: CODESNIPPET_JAVA3 .. details
  • To accomplish this, I created a very simple custom serializer: CODESNIPPET_JAVA2 .. details
  • I have tested this using Jackson to serialize and deserialize instances of MyClass, and it works exactly as intended.. details
  • True, it will return a String, if an object is needed, replace String with your object and you can serialize it using jackson library for example.. details
  • The only solution i saw is using a wrapper like this: URL_http://stackoverflow.com/questions/15936680/how-to- rename-root-key-in-json-serialization-with-jackson [How-to-rename-root-key-in- JSON-serialization-with-Jackson] .. details
  • jackson allows you to read in the tree, but then to get a specific node out you still need to do something like: root.get("somewhere").get("deep") so you end up having to build parser that has to iterate through different levels in order to find the specific node that you want.. details
  • Do you have a JSON serializer on the classpath like Jackson and the @RequestMapping annotation has the correct value of URL - /addUrl.html?. details
  • GSON is indeed a very popular library, but for example, Jackson has a large installed base due to its inclusion as default JSON library in both RESTEasy and Jersey.. details
  • GSON is indeed a very popular library, but for example, Jackson has a large installed base due to its inclusion as default JSON library in both RESTEasy and Jersey.. details
  • json-path looks perfect.. thanks!.. details
  • thank you very much!. details
  • Check the VIRGO STS Compatibility of your package Jackson JSON mapper and parser supports version 0.9.9.4 to 1.4.3 For more info Check URL_http://ebr.springsource.com/repository/app/bundle?query=J [ URL_http://ebr.springsource.com/repository/app/bundle?query=J ] .. details
  • URL_http://wiki.fasterxml.com/JacksonHome [ URL_http://wiki.fasterxml.com/JacksonHome ] The jar files can be found here: URL_http://wiki.fasterxml.com/JacksonDownload [ URL_http://wiki.fasterxml.com/JacksonDownload ] For further information on the difference in implementations please see this question URL_http://stackoverflow.com/questions/8459984/differentiating-the- jersey-jackson-and-jaxb-apis [Differentiating-the-Jersey,-Jackson,-and-JaxB- APIs] .. details
  • Here is the download page for the reference implementation jar of JSR-000353 URL_https://java.net/projects/jsonp/downloads/directory/ri [ URL_https://java.net/projects/jsonp/downloads/directory/ri ] If you are using JSON I recommend the Jackson JSON library.. details
  • URL_http://wiki.fasterxml.com/JacksonHome [ URL_http://wiki.fasterxml.com/JacksonHome ] The jar files can be found here: URL_http://wiki.fasterxml.com/JacksonDownload [ URL_http://wiki.fasterxml.com/JacksonDownload ] For further information on the difference in implementations please see this question URL_http://stackoverflow.com/questions/8459984/differentiating-the- jersey-jackson-and-jaxb-apis [Differentiating-the-Jersey,-Jackson,-and-JaxB- APIs] .. details
  • URL_http://wiki.fasterxml.com/JacksonHome [ URL_http://wiki.fasterxml.com/JacksonHome ] The jar files can be found here: URL_http://wiki.fasterxml.com/JacksonDownload [ URL_http://wiki.fasterxml.com/JacksonDownload ] For further information on the difference in implementations please see this question URL_http://stackoverflow.com/questions/8459984/differentiating-the- jersey-jackson-and-jaxb-apis [Differentiating-the-Jersey,-Jackson,-and-JaxB- APIs] .. details
  • Many thanks for the quick reply.. details
  • I tried to build the package and it is working file .. builded successfully After that i tried to deploy that in virgo serverIn the vsphere web server pickup directory i added three jar files of Jackson i tried to redeploy the project , that time it is throwing CODESNIPPET_JAVA2 .. details
  • Thanks .. details
  • The output will be somehow like that : CODESNIPPET_JAVA3 .. details
  • If I call the function convert( "toto")** I woukld like to have this output: CODESNIPPET_JAVA5 .. details
  • If I call the function convert( "groovy")** I woukld like to have this output: CODESNIPPET_JAVA6 .. details
  • Of course I could do a String replace after JSON creation, but if you have an answer with a programmatic approach I'll take it.. details
  • And I convert it into JSON or XML with this kind of test code: CODESNIPPET_JAVA2 .. details
  • When jackson see's a value like this it spits out: CODESNIPPET_JAVA1 .. details
  • If you don't need to send null values,you can set the variables that you don't want to send as null, and set Jackson to ignore null properties.. details
  • Hope this helps!. details
  • Request 1 should return entity A with properties X,Y in the JSON response Request 2 should return entity A with properties X,Y,Z in the JSON response Entity A is configured such that property Z is using @JsonIgnore so it is not returned in the JSON response Problem How do I return property Z in Request 2 if it is set to @JsonIgnore in the entity?. details
  • Is there are better way to do this dynamically besides using @JsonIgnore?Below is some "Demonstration" code to help clarify my question.. details
  • I have created a simple annotation for a class' methods.. details
  • I would like to export the value of each annotation in JSON format.. details
  • Thanks for your time.. details
  • So my question is: Given these annotations obtained at run time, is it possible to use jackson to serialize the values contained in the annotation?. details
  • I tried using a Jackson PropertyNamingStrategy, but that didn't work - it only seems to be useful when it is getting mapped onto some bean, not a Map.. details
  • I am using the Jackson (1.9.x) library to parse JSON into a Map: CODESNIPPET_JAVA1 .. details
  • I do not want to have to precreate beans for the JSON - I only want dynamic Maps 2.. details
  • Method that returns true for "virtual" nodes which represent missing entries constructed by path accessor methods when there is no actual node matching given criteria.. details
  • It should return true if the node wasn't actually present in the json.. details
  • There is also URL_http://fasterxml.github.io/jackson- core/javadoc/2.2.0/com/fasterxml/jackson/core/TreeNode.html?is- external=true#isMissingNode%28%29 [CODETERM3] , which seems to have a similar purpose.. details
  • Method that can be used to check if this node was created from JSON literal null value.. details
  • thanks, i was hunting for the providers... it seems the upgrade fixed a whole host of minor problems as well (double comma being one).. details
  • thanks, i was hunting for the providers... it seems the upgrade fixed a whole host of minor problems as well (double comma being one).. details
  • One possibility is that you are using wrong set of annotations, with respect to Jackson version in use.. details
  • Jackson 1.x and 2.x live in different Java packages (1.x under "org.codehaus.jackson", 2.x under "com.fasterxml.jackson"); and annotations and CODETERM1 have to match.This would be the case if (de)serializer is not getting called.. details
  • Jackson 1.x and 2.x live in different Java packages (1.x under "org.codehaus.jackson", 2.x under "com.fasterxml.jackson"); and annotations and CODETERM1 have to match.This would be the case if (de)serializer is not getting called.. details
  • Jackson 1.x and 2.x live in different Java packages (1.x under "org.codehaus.jackson", 2.x under "com.fasterxml.jackson"); and annotations and CODETERM1 have to match.This would be the case if (de)serializer is not getting called.. details
  • Not missing, but on its own project -- URL_https://github.com/FasterXML/jackson - jaxrs-json-provider -- same applies for some other things like Joda types.. details
  • Not missing, but on its own project -- URL_https://github.com/FasterXML/jackson - jaxrs-json-provider -- same applies for some other things like Joda types.. details
  • The real implementation uses Jackson, and successfully returns the correct Json object.. details
  • if i can remember, i think the jackson jaxrs jar is missing (or i couldn't find it in 2.x and up).. details
  • I tried to upgrade and found that all the standard mappers were missing, when trying to use Jersey and Jackson.. details
  • if i can remember, i think the jackson jaxrs jar is missing (or i couldn't find it in 2.x and up).. details
  • here customization class for ObjectMapper,(I've setted not null filed and new human readable date) CODESNIPPET_JAVA2 .. details
  • here customization class for ObjectMapper,(I've setted not null filed and new human readable date) CODESNIPPET_JAVA2 .. details
  • You can use the same approach to pretty-print a JSON document in a streaming fashion: CODESNIPPET_JAVA2 .. details
  • Any help is greatly appreciated.. details
  • Is there any way to serialize this kind of array directly, or do I need to create an Object[] array, and then cast it to the appropriate types later?. details
  • I'm trying to deserialize a JSON array that looks like this: CODESNIPPET_JAVA1 .. details
  • So In the request i see that the date is formated like CODETERM1 , but in the response the date is like an unixtimestamp and my Deserializer throws an Exception CODETERM2 Why my Server don't use my (De)Serializer classes?. details
  • So In the request i see that the date is formated like CODETERM1 , but in the response the date is like an unixtimestamp and my Deserializer throws an Exception CODETERM2 Why my Server don't use my (De)Serializer classes?. details
  • Whereas implementing a custom module for serialization/deserialization I would have hope there was a simpler way, kinda of a dynamic JsonIgnore.... details
  • Happy holidays - ktm.. details
  • Thanks for your answer.. details
  • Can we safely look back up the Json tree using the JsonParser given to the deserialize method?. details
  • Is it possible in a custom Jackson deserialiser to get the type value?. details
  • Thanks .. details
  • UPDATE Sotirios Delimanolis' comment gave me some hints to resolve this issue.. details
  • Now it works for me.. details
  • Objects should be serialized with a wrapped root value 6.. details
  • The id property should be defined by the user, either using: The already existing Jackson's CODETERM7 Or by creating another class or field annotation Or by deciding which annotation to inspect for CODETERM8 property discoverability (useful for JPA scenarios, for example) 5.. details
  • For the annotation I was thinking something like a custom CODETERM5 , ideally with an optional value to override the name just like CODETERM6 does 4.. details
  • I would really appreciate any help that can be given on this as I am stuck and cant go forward.. details
  • Here is the JSON I am working with: CODESNIPPET_JAVA1 .. details
  • Hopefully you can help me sort this last issue out, thanks again for the assistance.. details
  • Thanks in advance _****_****_*_*****_EDIT_**_*_**_*_**_*_*** Thanks for the reply and I have tried to implement the code however it still doesn't seem to work, the code I have now is below: CODESNIPPET_JAVA5 .. details
  • I would really appreciate any help that can be given on this as I am stuck and cant go forward.. details
  • Ah, thank you StaxMan, good to know.. details
  • Correct, except that unlike Gson, Jackson does not automatically detect private fields (it can be configured to, with @JsonAutoDetect or globally).. details
  • If possible, I'd like to keep CODETERM3 Jackson/Json /Whatever-dependency free.. details
  • If possible, I'd like to keep CODETERM3 Jackson/Json /Whatever-dependency free.. details
  • jackson version 2.x .. details
  • Feels more maintainable not to get the whole thing.. details
  • On a side note, whoever wrote the webservice which responds like this should be shot :) .. details
  • This is pretty much opposite of what i would ever do, but might work better in your case.. details
  • One other option is just to put it in a json object and use it as a huge HashMap, just extract values where needed from keys.. details
  • I pretty much always use Jackson mapper to map the JSON responses to specific Java Models, But in your case i don't think you should parse the whole thing, i would have a model which will just parse the things you need out of this response as opposed to everything.. details
  • Similar structures are included in unit tests, so there should be something special about your use case; I am just trying to think of what might be the difference.. details
  • Also make sure that you have some json support (I think having Jackson is preferred).. details
  • Thanks!.. details
  • Genius!. details
  • I am not sure if this is the behavior only with jackson or any other JSON library as well.. details
  • This works perfectly fine.. details
  • This works perfectly fine.. details
  • Use something like below: CODESNIPPET_JAVA1 .. details
  • Lets say you succeeded to convert all lists (1,2 .. n) to Gson/Jackson string.. details
  • yes, this works, thanks:) I guess my problem is more at adding multiple lists to a single jsonArray, mapper.writeValue(out, list1) mapper.writeValue(out, list2) .... mapper.writeValue(out, listn) is writing the list as separate json array, you get my point?. details
  • But the answer (for Jersey 2.2 + Jackson at least) was a more up-to-date provider CODESNIPPET_JAVA1 .. details
  • I've used [Jackson]( URL_http://jackson.codehaus.org /) before to serialize POJOs to strings with good results.. details
  • I've used [Jackson]( URL_http://jackson.codehaus.org /) before to serialize POJOs to strings with good results.. details
  • (1) Your question about stream or SAX-like parsing is totally valid.. details
  • I'm using Jackson 1.9.x.Sticking with the Animals example, Here's what I'd like to do: Let's say I have an Animal class: CODESNIPPET_JAVA1 .. details
  • Functionally same as if serializing value into JSON and parsing JSON as tree, but more efficient.. details
  • Functionally same as if serializing value into JSON and parsing JSON as tree, but more efficient.. details
  • After the program runs, the file CODETERM1 contains the correct JSON data.. details
  • I looked up the Javadoc of UR L_ URL_http://jackson.codehaus.org/1.7.9/javadoc/org/codehaus/jackson/map/ObjectMap per.html [ObjectMapper] but couldn't find an easy way to write to a CODETERM4 (JSON object in Jackson).. details
  • I looked up the Javadoc of UR L_ URL_http://jackson.codehaus.org/1.7.9/javadoc/org/codehaus/jackson/map/ObjectMap per.html [ObjectMapper] but couldn't find an easy way to write to a CODETERM4 (JSON object in Jackson).. details
  • There is no method in CODETERM5 like the following: CODESNIPPET_JAVA2 .. details
  • Following up on this question: URL_http://stackoverflow.com/questions/12096216 /jackson-serialize-deserialize-property-as-json-value [Question-here] CODETERM1 and CODETERM2 works great from the Serialization end, but not so well when it comes time to deserialize since it can't resolve the Object ID reference.. details
  • Writing a custom deserializer seems like overkill.. details
  • Jackson deserialize JsonIdentityReference (alwaysAsId true).. details
  • Following up on this question: URL_http://stackoverflow.com/questions/12096216 /jackson-serialize-deserialize-property-as-json-value [Question-here] CODETERM1 and CODETERM2 works great from the Serialization end, but not so well when it comes time to deserialize since it can't resolve the Object ID reference.. details
  • So, Jackson takes the forward part of the reference, your CODETERM3 in Trainee class), and converts it in a json-like storage format; this is the so- called marshalling process.. details
  • EDIT: Another useful annotation you could check is URL_http://wiki.fasterxml.com/JacksonFeatureObjectIdentity [@JsonIdentityInfo] : using it, everytime Jackson serializes your object, it will add an ID (or another attribute of your choose) to it, so that it won't entirely "scan" it again everytime.. details
  • EDIT: Another useful annotation you could check is URL_http://wiki.fasterxml.com/JacksonFeatureObjectIdentity [@JsonIdentityInfo] : using it, everytime Jackson serializes your object, it will add an ID (or another attribute of your choose) to it, so that it won't entirely "scan" it again everytime.. details
  • This can be useful when you've got a chain loop between more interrelated objects (for example: Order -> OrderLine -> User -> Order and over again).. details
  • If, for some reason, you don't have getter functions, you'll need to annotate the fields of interest with CODETERM5 so Jackson knows which fields to include in the serialized output.. details
  • I know that at least following support this mode of operation: Jackson Gson Genson For Jackson, basic Streaming API usage is talked about URL_http://www.cowtowncoder.com/blog/archives/2009/01/entry_132.html [here] (for example); but one thing that does not show is how to bind objects once you are positioned at the right place.So assuming JSON like: CODESNIPPET_JAVA1 .. details
  • Otherwise there is (really) faster (but slightly less obvious to use or configure) libraries like : URL_http://jackson.codehaus.org/ [Jackson-Json] .. details
  • Otherwise there is (really) faster (but slightly less obvious to use or configure) libraries like : URL_http://jackson.codehaus.org/ [Jackson-Json] .. details
  • Please can anyone fireup some pointers for me here in order- to deserialize 'em correctly?Thanks .. details
  • We could do it that way too, in which case we would have to put name in the JsonSubTypes annotation something like the answer here: URL_http://stackoverflow.com/questions/11798394/polymorphism-in-jackson - annotations-jsontypeinfo-usage.. details
  • We could do it that way too, in which case we would have to put name in the JsonSubTypes annotation something like the answer here: URL_http://stackoverflow.com/questions/11798394/polymorphism-in-jackson - annotations-jsontypeinfo-usage.. details
  • Great answer Usman.. details
  • Please post all relevant parts of your code.. details
  • Please post all relevant parts of your code.. details
  • I think CODETERM13 should be changed to CODETERM14 in the CODETERM15 annotation or even better to remove the CODETERM16 field since Jackson will take care of that through type info serialization.. details
  • When it comes to serialization, Jackson serializes the logical name as a property CODETERM10 then the properties of the object among them CODETERM11 which happens to have the same value as the logical name CODETERM12 (assigned in the constructor).. details
  • With URL_https://github.com/FasterXML/jackson [Jackson] you can use a SAX-like approach (streaming) using a CODETERM1 object, in your case it would be something like this: CODESNIPPET_JAVA1 .. details
  • With URL_https://github.com/FasterXML/jackson [Jackson] you can use a SAX-like approach (streaming) using a CODETERM1 object, in your case it would be something like this: CODESNIPPET_JAVA1 .. details
  • Iterate the CODETERM2 to get their values and put it into the JSON.. details
  • Jackson field value with no quotation marks.. details
  • Is there a Annotation or some other way to tell Jackson to Serialize a String variables's value without quotation marks.. details
  • The serializer should only serialize the one field's value without quotation marks.. details
  • Iv'e been researching and it's suggested that the most efficient way would be to parse it using the Jackson streaming API.. details
  • Iv'e been researching and it's suggested that the most efficient way would be to parse it using the Jackson streaming API.. details
  • Is the best way to parse the JSON with Jackson Streaming API, and construct a new JSON array at the same time or simply remove the elements somehow?. details
  • I'd recommend that you use URL_https://github.com/FasterXML/jackson-core [Jackson] For eg: To get the data you read from the file in a Map, you can write a method like this.. details
  • I'd recommend that you use URL_https://github.com/FasterXML/jackson-core [Jackson] For eg: To get the data you read from the file in a Map, you can write a method like this.. details
  • Yes it works, they added the MappingJackson2HttpMessageConverter class that is meant to be used instead of the "old" MappingJacksonHttpMessageConverter.. details
  • Your sample code should therefore look something like this: CODESNIPPET_JAVA2 .. details
  • Your sample code should therefore look something like this: CODESNIPPET_JAVA2 .. details
  • I'm using Jackson for JSON serialization, and I would like to override the null serializer -- specifically, so that null values are serialized as empty strings in JSON rather than the string "null".. details
  • All of the documentation and examples I've found on how to set null serializers refers to Jackson 1.x -- for example, the code at the bottom of URL_http://wiki.fasterxml.com/JacksonHowToCustomSerializers [ URL_http://wiki.fasterxml.com/JacksonHowToCustomSerializers ] no longer compiles with Jackson 2.0 because StdSerializerProvider no longer exists in the library.. details
  • All of the documentation and examples I've found on how to set null serializers refers to Jackson 1.x -- for example, the code at the bottom of URL_http://wiki.fasterxml.com/JacksonHowToCustomSerializers [ URL_http://wiki.fasterxml.com/JacksonHowToCustomSerializers ] no longer compiles with Jackson 2.0 because StdSerializerProvider no longer exists in the library.. details
  • I'm using Jackson for JSON serialization, and I would like to override the null serializer -- specifically, so that null values are serialized as empty strings in JSON rather than the string "null".. details
  • Custom pretty printer using Jackson library.. details
  • I am getting output like this: CODESNIPPET_JAVA2 .. details
  • I want output like this: CODESNIPPET_JAVA3 .. details
  • Looking at this: URL_http://jackson.codehaus.org/1.6.5/javadoc/org/codehaus/ja ckson/map/SerializationConfig.Feature.html [ URL_http://jackson.codehaus.org/1.6.5 / javadoc/org/codehaus/jackson/map/SerializationConfig.Feature.html] It looks like jackson json has a configuration in which only maps will have their null values serialized, but Gson only appears to have serialization of all null values, or none at all .. details
  • Does Gson have something like WRITE_NULL_MAP_VALUES (Jackson)?. details
  • Looking at this: URL_http://jackson.codehaus.org/1.6.5/javadoc/org/codehaus/ja ckson/map/SerializationConfig.Feature.html [ URL_http://jackson.codehaus.org/1.6.5 / javadoc/org/codehaus/jackson/map/SerializationConfig.Feature.html] It looks like jackson json has a configuration in which only maps will have their null values serialized, but Gson only appears to have serialization of all null values, or none at all .. details
  • I have seen solutions using the jsonDateSerializer and Deserializer class and has some success in using it for POJO related implementation.. details
  • I have seen solutions using the jsonDateSerializer and Deserializer class and has some success in using it for POJO related implementation.. details
  • That way, you can also directly add properties to the map, like CODETERM4 will add a new key CODETERM5 to the map with value CODETERM6 .. details
  • That way, you can also directly add properties to the map, like CODETERM4 will add a new key CODETERM5 to the map with value CODETERM6 .. details
  • That way, you can also directly add properties to the map, like CODETERM4 will add a new key CODETERM5 to the map with value CODETERM6 .. details
  • That way, you can also directly add properties to the map, like CODETERM4 will add a new key CODETERM5 to the map with value CODETERM6 .. details
  • My bean looks like this.. details
  • I'm getting result like this {"map":{"key2":"value2","key1":"value1"},"name":"suren"} CODETERM1 {"key2":"value2","key1":"value1","name":"suren"} is expected as per the JacksonFeatureUnwrapping documention URL_http://wiki.fasterxml.com/JacksonFeatureUnwrapping [ URL_http://wiki.fasterxml.com/JacksonFeatureUnwrapping ] .. details
  • I'm getting result like this {"map":{"key2":"value2","key1":"value1"},"name":"suren"} CODETERM1 {"key2":"value2","key1":"value1","name":"suren"} is expected as per the JacksonFeatureUnwrapping documention URL_http://wiki.fasterxml.com/JacksonFeatureUnwrapping [ URL_http://wiki.fasterxml.com/JacksonFeatureUnwrapping ] .. details
  • I have a bean like this CODESNIPPET_JAVA1 .. details
  • But i am getting result like CODESNIPPET_JAVA3 .. details
  • But i am getting result like CODESNIPPET_JAVA3 .. details
  • I want to serialize as Json as like this CODESNIPPET_JAVA2 .. details
  • :) I have now an implementation for it and it is not quite simple.Benchmark Jackson vs JSONObject included.. details
  • :) I have now an implementation for it and it is not quite simple.Benchmark Jackson vs JSONObject included.. details
  • At the higher level, I want to be able to do something like: CODESNIPPET_JAVA3 .. details
  • In the same time, I wrote a benchmark to confirm (or not) that this solution is faster than JSONObject for big Json strings...The test compares: - read with JSONObject (without mapping) - read with Jackson - read with tree with Jackson - read/write with JSONObject - read/write with JacksonAnd it is indeed faster :) After 1000 iterations, excluding potential class load or some initialization the JVM does, i get, in nano seconds: CODESNIPPET_JAVA7 .. details
  • The code is pretty much the same than the original one with the difference that when an attribute from the KnownPart is written, it's key is removed the tree which is in the UnknownPart object, then it is easy to write the unknown part.... details
  • They are well built and fast mappers.. details
  • Hope this helps!. details
  • They will get the job done quicker and easier than any algorithm / method you alone can think of in a short amount of time.. details
  • I would personally recommend using something like GSON and Jackson.. details
  • They will get the job done quicker and easier than any algorithm / method you alone can think of in a short amount of time.. details
  • They will get the job done quicker and easier than any algorithm / method you alone can think of in a short amount of time.. details
  • Hope this helps!. details
  • They will get the job done quicker and easier than any algorithm / method you alone can think of in a short amount of time.. details
  • Personally, I like the template approach because of its flexibility.. details
  • mapper.readValue(json, Boolean.class); -- This won't work, because the JSON does not represent a Boolean type/value.. details
  • The JSON is an object with a single property, and that property is a Boolean (or boolean) type value.. details
  • Is there a simple possibility to get JSON parameters injected just annotating it somehow, similar to CODETERM5 in the case of a CODETERM6 request?I would like some other easier solutions than decoding the JSON String with Jackson's CODETERM7 or Jettison's CODETERM8 .. details
  • I know how to solve quickly that problem by using JSONObject.. details
  • So far, so good.. details
  • For example, if I just want to update 1 value: CODESNIPPET_JAVA3 .. details
  • Meaning: I have a full representation of the values I unserialize (no unknown properties).. details
  • I know how to solve quickly that problem by using JSONObject.. details
  • But, atm I will first try improving performance with jackson.. details
  • Thanks for the answer.. details
  • Jackson parsing JSON containing an array of objects and array of maps w/ dynamic keys.. details
  • I'm parsing this using Jackson and so I have been parsing responses using: readvalue(json, MyCustomClass.class) Where MyCustomClass looks like CODESNIPPET_JAVA2 .. details
  • I have json like this: CODESNIPPET_JAVA1 .. details
  • Now the jobs parse perfectly into Jobs objects but I can't get the users to parse since they have dynamic keys.. details
  • I read about JsonAnyGetter/Setter and tried making the UserMap object map that maps a string -> User like: CODESNIPPET_JAVA3 .. details
  • Sometimes, I just want to update the boolean value, and I don't think that sending the whole object with its big string is a good idea just to update a simple boolean.. details
  • For instance, the following URL: POST /myentities/1/aboolean/true will be mapped to a method that allows to only update the boolean.. details
  • I don't want to be 100% REST compliant, but I do not feel comfortable with providing a custom URL to update each field (especially given that it causes problems when I want to update several fields).. details
  • Thanks.. details
  • Another solution would be to split "MyEntity" into multiple resources and just update these resources, but I feel like it does not make sense: "MyEntity" is a plain resource, it is not composed of** other resources.. details
  • Thank you sir!. details
  • Jersey 2.0 provides support for JSON using MOXy an Jackson.. details
  • I would look into any of the following frameworks or libraries to create REST APIs with java and/or scala: URL_http://www.playframework.com/ [Play-Framework] URL_http://vertx.io/ [Vert.x] URL_http://spray.io/ [Spray] URL_http://dropwizard.codahale.com/ [Dropwizard] (which uses Jetty, Jersey, and Jackson) .. details
  • I would look into any of the following frameworks or libraries to create REST APIs with java and/or scala: URL_http://www.playframework.com/ [Play-Framework] URL_http://vertx.io/ [Vert.x] URL_http://spray.io/ [Spray] URL_http://dropwizard.codahale.com/ [Dropwizard] (which uses Jetty, Jersey, and Jackson) .. details
  • I tried looking through the documentation, but it is incredibly detailed.. details
  • Convert xml string to json file (with option to pretty print) using Jackson.. details
  • I've been searching for a good, fast library to convert xml to json.. details
  • The object ends up serializing exactly how I'd like it to, adding type information only where it is necessary: CODESNIPPET_JAVA3 . }. details
  • Could somebody advise on the correct way to do this please?. details
  • I have a JSON string like CODESNIPPET_JAVA1 .. details
  • Jackson - De-Serialiazation with unknow dynamic property.. details
  • Thankful for any input or help regarding this, as I have been looking around quite a bit.. details
  • I'm looking for a way to use Jackson for serializaion/deserialization to handle this in a smooth way.. details
  • I'm aware that Jackson has a URL_http://fasterxml.github.io/jackson- annotations/javadoc/2.2.0/com/fasterxml/jackson/annotation/JsonUnwrapped.html [@JsonUnwrapped] annotation that kind of handles the opposite.. details
  • I see no reason why you'd need to use a CODETERM1 when Jackson has the almighty CODETERM2 : CODESNIPPET_JAVA1 .. details
  • Jackson: deserializing recursive object.. details
  • I'm trying to parse the filter parameters sent by a KendoUI grid to my web service and am having some issues convincing Jackson to parse this JSON.. details
  • According to URL_http://www.mkyong.com/ [mkyong] , the magic incantation is CODETERM1 to URL_http://www.mkyong.com/java/how-to-enable-pretty-print-json- output-jackson/ [pretty-print-JSON] : CODESNIPPET_JAVA1 .. details
  • Hope this helps... .. details
  • Pretty printing JSON from Jackson 2.2's ObjectMapper.. details
  • All of the results of my Google searches have come up with Jackson 1.x ways of doing this and I can't seem to find the proper, non-deprecated way of doing this with 2.2.. details
  • Right now I have an instance of CODETERM1 and would like to get a CODETERM2 with pretty JSON.. details
  • It is very simple, since it is just a wrapper of collection and delegates method invocations to the underlying collection CODESNIPPET_JAVA1 .. details
  • Thanks in advance.. details
  • Thanks in advance for any helpful answers.. details
  • I would just like to understand why I needed to read in the input stream and pass this to jackson instead of being able to get a value as a string which I first thought I would have to do.. details
  • Everything works ok but what I dont understand is why there was nothing in the request like when you post a form, and instead I had to use this code to map my object to Jackson: CODESNIPPET_JAVA1 .. details
  • Simple code example: CODESNIPPET_JAVA1 .. details
  • Simple code example: CODESNIPPET_JAVA1 .. details
  • From that perspective Jackson's support of this feature is very elegant.. details
  • Thanks!. details
  • I'm not sure yet if I'll need that but I'd like to have control over it if possible... details
  • Your solution perfectly makes sense, as Jackson mapper cannot initialize an inner class and return it.. details
  • @jiduvah - It would be nice!. details
  • Well I guess I must admit to your solution at this point but still I remember that we can get json string from the map using Jackson lib.. details
  • is there no function of the jackson library to take care of this?. details
  • Thanks, but I found that tutorial too.. details
  • Thanks, but I found that tutorial too.. details
  • Thanks, but I found that tutorial too.. details
  • @Lion jackson, it works for one paramter.. details
  • I went back to SimpleJSON because it was, well, simple.. details
  • Correct, I looked at Jackson.. details
  • If you have links, that would be appreciated.. details
  • You can create one or more java classes with the structure described above and than you can use a java to json parser (I strongly recommend Jackson) to transform in json the ojbect.For example: CODESNIPPET_JAVA1 .. details
  • Read a tutorial, it's very simple: URL_http://www.mkyong.com/java/how-to-convert- java-object-to-from-json-jackson/ [ URL_http://www.mkyong.com/java/how-to-convert - java-object-to-from-json-jackson/] .. details
  • You will want to ensure that you have the Jackson jars on your classpath, and Spring will take care of the rest.. details
  • great comparison post.. details
  • great comparison post.. details
  • I second Jackson in favour of FlexJson; FlexJson lacks a default Jax-RS provider and doesn't correctly parse generics (like SomeObject).Also Jackson has very elegant configuration (once you find out how to plug it in!). details
  • ( URL_http://code.google.com/p/google-gson/ [ URL_http://code.google.com/p/google-gson/ ] ) and I assume it's also possible with Jackson ( URL_http://jackson.codehaus.org/ [ URL_http://jackson.codehaus.org/ ] ) though I would suggest the lighter GSON for something this simple.. details
  • ( URL_http://code.google.com/p/google-gson/ [ URL_http://code.google.com/p/google-gson/ ] ) and I assume it's also possible with Jackson ( URL_http://jackson.codehaus.org/ [ URL_http://jackson.codehaus.org/ ] ) though I would suggest the lighter GSON for something this simple.. details
  • Here is a complete working example that I have tested.. details
  • If this simple example does not work the CODETERM7 file is most likely not on the build path.. details
  • Where the Jackson voodoo is implemented like: CODESNIPPET_JAVA4 .. details
  • Hope this is useful to someone!. details
  • That JSON data looks like its been double-escaped.. details
  • Thank you for the bounty, and thank you for reporting that @JsonIgnoreProperties can be applied to properties (new since 2.0)!. details
  • Awesome, I'm going to try and integrate your code this morning, and assuming it works I'll award the bounty.. details
  • To answer your first question, Jackson in my experience is the most easy to use and documented API to handle JSON on java.. details
  • Thank you so much, this helped a lot!. details
  • Thank you so much, this helped a lot!. details
  • Say I have a JSON file that looks like this: CODESNIPPET_JAVA1 .. details
  • Notice the 'values' part can either be a single value, or an object (which is unique).. details
  • I'm pretty stuck and I would appreciate any help.. details
  • I'm pretty stuck and I would appreciate any help.. details
  • This works, but is there a better way than just using 'Object' to hold 'value'?. details
  • That way I can add an attribute to Foo without having to remember to add the attribute to the serializer as well.. details
  • That way I can add an attribute to Foo without having to remember to add the attribute to the serializer as well.. details
  • Thats why Genson has been created and this is one of main advantages of Genson over Jackson.. details
  • Truth is, I had begun writing some code in Jackson already, so if I can come up with something equivalent to what you have in genson, I will probably stick with Jackson.. details
  • Thanks for the help!.. details
  • Like Genson GenericType, jackson provides a class called TypeReference that allows you to work with parameterized types, new TypeReference>(){}.getType().. details
  • It is a bit like you were asking why try an android when iphone exists and is widely used.... details
  • It is a bit like you were asking why try an android when iphone exists and is widely used.... details
  • Compared to Jackson it is more a matter of vision, jackson tries to handle a lot of cases but by making extension really hard, Genson takes another approach=> provide nice features but stay open to extension.. details
  • Compared to Jackson it is more a matter of vision, jackson tries to handle a lot of cases but by making extension really hard, Genson takes another approach=> provide nice features but stay open to extension.. details
  • Any particular reason to try Genson instead of proven and widely used packages like Jackson or GSON?. details
  • I liked GSON too but found that Jackson was considerably faster in my use case and just as easy to use.. details
  • I liked GSON too but found that Jackson was considerably faster in my use case and just as easy to use.. details
  • Personally, I prefer Jackson as according to URL_http://www.martinadamek.com/2011/02/04/json-parsers-performance-on- android-with-warmup-and-multiple-iterations/ [test-benchmarks] , it's faster than GSON.. details
  • You might find it useful ... .. details
  • Personally, I prefer Jackson as according to URL_http://www.martinadamek.com/2011/02/04/json-parsers-performance-on- android-with-warmup-and-multiple-iterations/ [test-benchmarks] , it's faster than GSON.. details
  • Sounds like a nice compromise!.. details
  • Sounds like a nice compromise!.. details
  • Thanks, I just found an alternative if you want to specify the concrete implementation as an annotation URL_http://wiki.fasterxml.com/JacksonFAQ Deserializing_Abstract_types.. details
  • Thanks, I just found an alternative if you want to specify the concrete implementation as an annotation URL_http://wiki.fasterxml.com/JacksonFAQ Deserializing_Abstract_types.. details
  • Jackson does a much better job at detecting types for maps, and it is far easier to configure than GSON: URL_https://github.com/FasterXML/jackson- databind [ URL_https://github.com/FasterXML/jackson-databind ] .. details
  • Jackson does a much better job at detecting types for maps, and it is far easier to configure than GSON: URL_https://github.com/FasterXML/jackson- databind [ URL_https://github.com/FasterXML/jackson-databind ] .. details
  • Jackson does a much better job at detecting types for maps, and it is far easier to configure than GSON: URL_https://github.com/FasterXML/jackson- databind [ URL_https://github.com/FasterXML/jackson-databind ] .. details
  • Jackson does a much better job at detecting types for maps, and it is far easier to configure than GSON: URL_https://github.com/FasterXML/jackson- databind [ URL_https://github.com/FasterXML/jackson-databind ] .. details
  • I have good experience with Jersey and Jackson, even with Android, JBoss or Tomcat.. details
  • Thank you!. details
  • I know Java, I would like you to point me out to good resources and best practices about these topics.. details
  • I know Java, I would like you to point me out to good resources and best practices about these topics.. details
  • But it is also possible that you may not even be using Jackson, since this is typical behavior by XML-based tools like CODETERM1 and CODETERM2 ; they tend to add at-sign to distinguish "elements from attributes" (which is XML- specific difference that these tools want to retain).. details
  • Jackson is great, but this isn't answering the question that was asked.. details
  • Thanks for the link.. details
  • Thanks all for your help.. details
  • Thanks all for your help.. details
  • How can I create a json array like the example below using jackson.. details
  • Eventually I will be making a json that has the below values.. details
  • Thanks for your help.. details
  • Using the standard Jackson ObjectMapper (with defualt configuration) the serialized JSON is: CODESNIPPET_JAVA3 .. details
  • It works fine as parameter ( CODETERM5 ) and/or as return type ( CODETERM6 ).. details
  • Is there any simple syntax like the below which can reduce code duplication: CODESNIPPET_JAVA3 .. details
  • Jackson parser json setter to take value as string array.. details
  • EDIT If Jackson doesn't support it, can GSON Support this operation.. details
  • Thanks .. details
  • In my real json there are so many fields like movieName, movieTitle which i want to normalize into a common name.. details
  • It makes the code much easier to understand.. details
  • If I recall it correctly, using pure Jackson you do something like this: CODESNIPPET_JAVA1 .. details
  • here, I have created a normal JSON as well as a JSON 2 message convertor.. details
  • Both Ref and normal bean format in the XML file have been used (personally I prefer the ref tag as its neater).. details
  • URL_http://jackson.codehaus.org/ [Jackson] supports event-based parsing.. details
  • URL_http://jackson.codehaus.org/ [Jackson] supports event-based parsing.. details
  • thanks a lot.. details
  • Looking through the documentation and source code I don't see a clear way to do this.. details
  • Looking through the documentation and source code I don't see a clear way to do this.. details
  • I cannot pull it out of the InputStream because it doesn't support resetting and the creation of the JsonParser consumes it.. details
  • to start using Jackson for reading/writing CODETERM1 types first, to get a speedup (up to 3x faster).. details
  • to start using Jackson for reading/writing CODETERM1 types first, to get a speedup (up to 3x faster).. details
  • (JSON does not allow functions--not sure from your description that you are clear on that or not.. details
  • Regarding to this post i switched to jackson, wors well.. details
  • The check is not necessary if you are absolutely confident in your datas structure, but its available should you need it (and this is no different from most other JSON libraries).. details
  • Thanks for the answer!.. details
  • Could you please add a code snippet with your web-service method signature?. details
  • Thank you!. details
  • Thank you!. details
  • Thanks for that.. details
  • Jackson try to call a setter function which accepts a integer value.. details
  • Your best bet then is Jackson 2.1 -- it will allow separation of references (which always use id) from serialization of the type.. details
  • Thanks StaxMan.. details
  • Thank You, will go ahead and use Apache Http Client and Jackson.. details
  • Thank You, will go ahead and use Apache Http Client and Jackson.. details
  • Are you positive those two paths exist in the directory pointed to by ${my.repo.local}?. details
  • But, why bother doing this when the easier (and a LOT faster) way would be to have a generic way to go from POJO to Map, probably using reflection.. details
  • But, why bother doing this when the easier (and a LOT faster) way would be to have a generic way to go from POJO to Map, probably using reflection.. details
  • If the JSON is coming from a web service, check out Spring's restTemplate, super easy to work with.. details
  • You might want to take a look at Jackson, it's one of the most efficient and supported JSON libraries available on Java.. details
  • results in a map of [field, value] where values are the actual references to instances of the fields of obj instead of Maps ?. details
  • org.codehaus.jackson.JsonParseException: Unexpected character ('' (code 65279 / 0xfeff)): expected a valid value.. details
  • org.codehaus.jackson.JsonParseException: Unexpected character ('' (code 65279 / 0xfeff)): expected a valid value.. details
  • The definition of the classes is this (don't know if information of the nested classes is needed for full support?. details
  • I think I have mapped them very well, just going to post the importants for clarity ) CODESNIPPET_JAVA3 .. details
  • Actually If I copy paste the Json Respone in URL_http://www.jsoneditoronline.org/ [this-page] it seems well formed.. details
  • I'm consuming a RESTful WCF that shows a json response like this one: CODESNIPPET_JAVA1 .. details
  • Its just by dumb luck that the second case works (because the buffer is long enough to get all the above shown methods invoked on it without underflowing).. details
  • Well, Jackson actually tries to serialize the _entire_ byte buffer object (not just its byte contents), and if you look under the covers its actually trying to write out all these 'properties': CODESNIPPET_JAVA1 .. details
  • I get BufferUnderflowException while doing so.But it works fine when the size of data present is large.. details
  • You'll want to use a JSON serialization library like Jackson which will write the object to a string in JSON for you.. details
  • I believe objectMapper.setDateFormat(df) is the preferred way at this time (version 1.8+).. details
  • I believe objectMapper.setDateFormat(df) is the preferred way at this time (version 1.8+).. details
  • This works like a charm!. details
  • This is my first attempt at using Jackson like this to Marshall and UnMarchall classes.. details
  • Thanks, .. details
  • That worked thanks Staxman!.. details
  • That worked thanks Staxman!.. details
  • Edit:**I might be crazy, but this actually appears to work despite never being explicitly mentioned in the documentation: URL_http://fasterxml.github.io/jackson-annotations/javadoc/2.2.0/com/fasterxml/jackson/annotation/JsonUnwrapped.html [ URL_http://fasterxml.github.io/jackson-annotations/javadoc/2.2.0/com/fasterxml/jackson/annotation/JsonUnwrapped.html ] I was pretty sure it didn't work for me previously.. details
  • Still, the proposed @JsonCreator approach might be preferred when custom logic is required to deserialize unwrapped polymorphic types.. details
  • In addition, if the map values could be something other than Strings, you'd have to do some manual type checking and conversion.. details
  • In addition, if the map values could be something other than Strings, you'd have to do some manual type checking and conversion.. details
  • Why would you like to return whole JSON object as string (keys tags, meta) ?. details
  • That will be really sweet...... .. details
  • Any label is fine, we just need a label to make it as JSON object.. details
  • Now we need the List String to be a Json object to push to front end, like CODESNIPPET_JAVA2 .. details
  • Server layer will return a list of String value, like CODESNIPPET_JAVA1 .. details
  • You are using JAXB annotations so you need to properly configure your CODETERM1 with the correct module; you need the URL_https://github.com/FasterXML/jackson-module-jaxb-annotations [jackson- module-jaxb-annotations] project.. details
  • Update: JAXB annotation are great for interop with XML system, but you should really use Jackson's own annotation if you can.. details
  • You are using JAXB annotations so you need to properly configure your CODETERM1 with the correct module; you need the URL_https://github.com/FasterXML/jackson-module-jaxb-annotations [jackson- module-jaxb-annotations] project.. details
  • Note: this is for Jackson 2.x.. details
  • you can use CODETERM1 of jackson mapper** with a code something like this.. CODESNIPPET_JAVA1 .. details
  • My Json input look like this CODESNIPPET_JAVA1 . ]. details
  • I can't find any example online on how to do that, I'm trying to use ObjectMapper().readTree() and play with JsonNode I can't make it work, any help would be appreciated I have done this but I'm stuck on how to get the Key name of my last JsonNode : CODESNIPPET_JAVA2 .. details
  • My product list is dynamic and I don't want to create a Java Object for that, My first Idea was to build a new productList in java and add each quantity to the right product id.. details
  • What if I have a set of dynamic roles I extract from a database along with their permissions and I want to filter based on those rules?. details
  • What if I have a set of dynamic roles I extract from a database along with their permissions and I want to filter based on those rules?. details
  • It is possible that Jackson will behave similar to Jettison with respect to the JAXB annotations I simply didn't have the time to try it.. details
  • You always need to apply a sensible rounding when writing floating point values.. details
  • Just drop the bundle and from the zip you need to add the 4 jackson jars in your classpath and you should get everything working without any error.. details
  • Adding jackson-xc-1.9.2.jar solve this warrning below java.lang.NoClassDefFoundError: org/codehaus/jackson/xc/JaxbAnnotationIntrospector I hope this helps somebody.. details
  • Just drop the bundle and from the zip you need to add the 4 jackson jars in your classpath and you should get everything working without any error.. details
  • The wingspan value can be anything, and without that matching something specifically, Jackson falls back on the defaultImpl class.. details
  • However, then I have to manually handle extra values and throw consistent exceptions, and it's not clear if the Animal would be serialized properly later.. details
  • In Jackson, untyped deserialization typically looks something like this: CODESNIPPET_JAVA2 .. details
  • However, then I have to manually handle extra values and throw consistent exceptions, and it's not clear if the Animal would be serialized properly later.. details
  • Jackson Polymorphic Deserialization - Can you require the existence of a field instead of a specific value?. details
  • It seems I can use my own TypeResolver or TypeIdResolver, but that seems like more work than just deserializing the raw json myself.. details
  • Ok, I've opened a Spring Source JIRA request for this one, perhaps it is a much needed improvement: URL_https://jira.springsource.org/browse/SPR-10552 [ URL_https://jira.springsource.org/browse/SPR-10552 ] Or else, it is a case of leveraging the Jackson conversion capabilities in clever ways which sounds like a lot of plumbing.. details
  • Jackson supports comments if you enable that feature on the parser you use: URL_http://jackson.codehaus.org/1.8.8/javadoc/org/codehaus/jackson/JsonParser.. details
  • Jackson supports comments if you enable that feature on the parser you use: URL_http://jackson.codehaus.org/1.8.8/javadoc/org/codehaus/jackson/JsonParser.. details
  • I used Jackson + Spring's DataBinder to accomplish something like this.. details
  • Now it is easy to convert this file (or string) to a Java class (e.g: CODETERM1 ) if I use Gson or Jackson or JsonSimple or another Java/JSON third-party library.. details
  • I know that Spring will deserialize JSON using Jackson to objects, but if I try something like the following: CODESNIPPET_JAVA1 .. details
  • Also, for easier JSON creating parsing you should take a look at JSON mapper libraries: URL_https://code.google.com/p/google-gson/ [GSON] or URL_http://jackson.codehaus.org/ [Jackson] .. details
  • Also, for easier JSON creating parsing you should take a look at JSON mapper libraries: URL_https://code.google.com/p/google-gson/ [GSON] or URL_http://jackson.codehaus.org/ [Jackson] .. details
  • The answer below from (I cannot see the answers on this edit screens, so never mind, there is just one) works, but only with the records.. details
  • So right now I get to all the posted form data, and my problem is solved this way (thanks!).. details
  • So right now I get to all the posted form data, and my problem is solved this way (thanks!).. details
  • Something like: CODESNIPPET_JAVA1 .. details
  • I have this issue when I was working with Jackson.. details
  • Due to the amount of implementation being very likely to grow in the future, having mixins for all of them quickly becomes unsustainable.. details
  • The first simple approach was a @JsonSerialize annotation on the interface.. details
  • Due to the amount of implementation being very likely to grow in the future, having mixins for all of them quickly becomes unsustainable.. details
  • I use jackson on both sides... btw: without '' it works fine: CODESNIPPET_JAVA5 .. details
  • It works fine.. details
  • Usually what happens is that libs like Jackson get loaded by app container's class loader, and value classes from webapp: former can't see latter.. details
  • Thanks for the reply.. details
  • I took your suggestion and use the static factory method which is much cleaner.. details
  • thanks, it is giving the following output.. details
  • I'm aware that this issue has been discussed many times, but none of solutions is working for me.. details
  • I cannot seem to reproduce it by simply using jackson 1.9.9 and trying to read/write a string value from a POJO as shown above.. details
  • You should probably use the TokenBuffer class when reading the data, that way the write will be much more efficient.. details
  • I've spent hours trying different things without success, but the best I can do is grab the whole JSON document as a JsonNode which just gives me the entire structure, but not an individual object.. details
  • I'm working on a simple text based RPG for my Java class this semester, and I want to store character information and location information in either XML or JSON.. details
  • What I want to achieve is being able to create an "ObjectTest" object with the values from my JSON.. details
  • So I've done my best to research similar issues like this, but I'm fairly new to Java and JSON, so I apologize if this is redundant.. details
  • So I've done my best to research similar issues like this, but I'm fairly new to Java and JSON, so I apologize if this is redundant.. details
  • You should answer like this :) It worked well.. details
  • How about reading the pretty-printed data back into Jackson and then output it again without pretty-print enabled?. details
  • Also it's very well documented and understood.. details
  • Also it's very well documented and understood.. details
  • If you work a lot with JSON data I would really recommend that you use URL_https://code.google.com/p/google-gson/ [Gson] or URL_http://jackson.codehaus.org/ [Jackson] .. details
  • If you work a lot with JSON data I would really recommend that you use URL_https://code.google.com/p/google-gson/ [Gson] or URL_http://jackson.codehaus.org/ [Jackson] .. details
  • The resulting value will be of the type CODETERM9 .. details
  • If you want to parse the elements (more CODETERM5 s) within the CODETERM6 you can do so by using the classes provided by the URL_https://developer.android.com/reference/org/json/package-summary.html [org.json] package that is being distributed with Android or use another JSON library like URL_https://code.google.com/p/google-gson [GSON] or URL_http://jackson.codehaus.org [Jackson] .. details
  • The resulting value will be of the type CODETERM9 .. details
  • It's good practice to create a model class containing the CODETERM13 's elements as member variables and providing a Constructor that takes the CODETERM14 containing the objects data values.. details
  • It's good practice to create a model class containing the CODETERM13 's elements as member variables and providing a Constructor that takes the CODETERM14 containing the objects data values.. details
  • If you want to parse the elements (more CODETERM5 s) within the CODETERM6 you can do so by using the classes provided by the URL_https://developer.android.com/reference/org/json/package-summary.html [org.json] package that is being distributed with Android or use another JSON library like URL_https://code.google.com/p/google-gson [GSON] or URL_http://jackson.codehaus.org [Jackson] .. details
  • I recomment you use a library like URL_http://jackson.codehaus.org/ [Jackcon] : URL_http://www.mkyong.com/java/how-to-convert-java-object-to-from-json- jackson/ [ URL_http://www.mkyong.com/java/how-to-convert-java-object-to-from-json - jackson/] .. details
  • I recomment you use a library like URL_http://jackson.codehaus.org/ [Jackcon] : URL_http://www.mkyong.com/java/how-to-convert-java-object-to-from-json- jackson/ [ URL_http://www.mkyong.com/java/how-to-convert-java-object-to-from-json - jackson/] .. details
  • Is there a global Jackson setting for @JsonIgnoreProperties(unknown=true)?. details
  • Ah, that works.. details
  • But of course you could use some other library that offers a bit more of flexibility like URL_http://code.google.com/p/google-gson/ [Gson] or URL_http://jackson.codehaus.org/ [Jackson] A small sample for gson and jackson can be found URL_http://stackoverflow.com/a/5314988/1001027 [here] and URL_http://stackoverflow.com/a/2525152/1001027 [here] respectively.. details
  • But of course you could use some other library that offers a bit more of flexibility like URL_http://code.google.com/p/google-gson/ [Gson] or URL_http://jackson.codehaus.org/ [Jackson] A small sample for gson and jackson can be found URL_http://stackoverflow.com/a/5314988/1001027 [here] and URL_http://stackoverflow.com/a/2525152/1001027 [here] respectively.. details
  • But of course you could use some other library that offers a bit more of flexibility like URL_http://code.google.com/p/google-gson/ [Gson] or URL_http://jackson.codehaus.org/ [Jackson] A small sample for gson and jackson can be found URL_http://stackoverflow.com/a/5314988/1001027 [here] and URL_http://stackoverflow.com/a/2525152/1001027 [here] respectively.. details
  • But of course you could use some other library that offers a bit more of flexibility like URL_http://code.google.com/p/google-gson/ [Gson] or URL_http://jackson.codehaus.org/ [Jackson] A small sample for gson and jackson can be found URL_http://stackoverflow.com/a/5314988/1001027 [here] and URL_http://stackoverflow.com/a/2525152/1001027 [here] respectively.. details
  • you should've stated that your classes where inner classes :) This automatically adds a value to your constructor referring to the parent class.. details
  • That works, for the person example.. details
  • Therefore it follows that you'll have to construct the custom type after you read the JSON with the generic parser, and hence the generic parser will be faster.. details
  • Therefore it follows that you'll have to construct the custom type after you read the JSON with the generic parser, and hence the generic parser will be faster.. details
  • It's worth noting though that such overhead is very small and almost never something you need to optimize away.. details
  • the streaming API of Jackson) will be faster.. details
  • Can anybody please tell me, is their any API available which will return me the path ?. details
  • Output should be like** - CODESNIPPET_JAVA2 .. details
  • Thank you so much, its a real pleasure that you appreciate my work.. details
  • I read the documentation and is very clear, I want to say that you have done a good job, many annotations are also similar to Jackson library and this help for an eventual migration.. details
  • I was able to create a "flat" schema successfully with the following: CODESNIPPET_JAVA1 .. details
  • It addresses JAXBAnnotationIntrospector and JacksonAnnotationIntrospector as well.... details
  • Download URL_https://maven.java.net/service/local/artifact/maven/redirect?r=releas es&g=com.sun.jersey.samples&a=jacksonjsonprovider&v=1.13&c=project&e=zip to get a complete example using POJO based JSON support.. details
  • Download URL_https://maven.java.net/service/local/artifact/maven/redirect?r=releas es&g=com.sun.jersey.samples&a=jacksonjsonprovider&v=1.13&c=project&e=zip to get a complete example using POJO based JSON support.. details
  • I want to be able to do something like this: CODESNIPPET_JAVA5 .. details
  • I had the exact same issue.I found the solution in this post : URL_http://stackoverflow.com/questions/15659950/parse-json-tree-to-plain- class-using-jackson-or-its-alternatives [Parse-JSON-tree-to-plain-class-using- Jackson-or-its-alternatives] Check out the last answer.By defining a custom setter for the property that takes a JsonNode as parameter and calls the toString method on the jsonNode to set the String property, it all works out.. details
  • I had the exact same issue.I found the solution in this post : URL_http://stackoverflow.com/questions/15659950/parse-json-tree-to-plain- class-using-jackson-or-its-alternatives [Parse-JSON-tree-to-plain-class-using- Jackson-or-its-alternatives] Check out the last answer.By defining a custom setter for the property that takes a JsonNode as parameter and calls the toString method on the jsonNode to set the String property, it all works out.. details
  • Your setters should not return any value, this may explain why Jackson does not see a "title" setter.. details
  • I also tried @JsonInclude(Include.NON_NULL) and put all my variables to null, but it didn't work either!. details
  • jackson ignore empty values (or null).. details
  • I also tried @JsonInclude(Include.NON_NULL) and put all my variables to null, but it didn't work either!. details
  • I only want to take required information for the "subscription" purpose!. details
  • Thanks for your help guys!. details
  • One thing: there is no way to avoid serializing the _first instance_ of referred object fully the first time; this is required to deserialize things correctly.. details
  • Jackson 2.0.0 announcement ( URL_http://www.cowtowncoder.com/blog/archives/2012/03/entry_466.html ) has an example, but unit tests might be the best source.. details
  • I've tried doing some research, and found some information about a Value Instantiator or using constructors, but isn't using constructors anti-bean like?. details
  • Or am I to write a custom deserializer for every instance like this?. details
  • "Can not instantiate value of type [simple type, class User], from String value; no single-String constructor/factory method" Thanks.. details
  • I'm attempting to write a simple class that will validate a JSON input string if it can be converted to a target _JAVA_ object.The validator should fail if any unknown field is found in the input JSON String.It all works as expected except until I annotate the B object inside the A class with CODETERM1 , then the object mapper will silently ignore the unknown properties without failing.. details
  • Could someone please help me with a more elegant solution?. details
  • Right now, I am just creating a Map < String,TestClass and I write that to achieve what I am trying to do, which works but clearly this is a hack.. details
  • Thanks .. details
  • I would recommend the lib URL_https://github.com/alibaba/fastjson [FastJson] , it is fast than protocol buf and jackson , you can try this .. details
  • I would recommend the lib URL_https://github.com/alibaba/fastjson [FastJson] , it is fast than protocol buf and jackson , you can try this .. details
  • Many thanks!. details
  • Fast and accurate.. details
  • I prefer Jackson but when I evaluated it I found it was just too big for me to feel good about putting it in an android project so I went with GSON.. details
  • It works with jackson 2.0!!. details
  • It's working perfectly and my json turns into the expected class according to the 'type' value.. details
  • I'm working with URL_http://wiki.fasterxml.com/JacksonPolymorphicDeserialization [JacksonPolymorphicDeserialization] , this is my code which deserializes into the proper class based in the 'type' property: CODESNIPPET_JAVA1 .. details
  • I'm working with URL_http://wiki.fasterxml.com/JacksonPolymorphicDeserialization [JacksonPolymorphicDeserialization] , this is my code which deserializes into the proper class based in the 'type' property: CODESNIPPET_JAVA1 .. details
  • Thanks!. details
  • Thanks!. details
  • In particular, we are interested in the URL_http://fasterxml.github.io/jackson-databind/javadoc/2.0.0/com/fasterxm l/jackson/databind/ObjectWriter.html#withRootName%28java.lang.String%29 [CODETERM5] method: CODESNIPPET_JAVA2 .. details
  • Well, by default Jackson uses one of two annotations when trying to determine the root name to be displayed for wrapped values - URL_http://docs.oracle.com/ javaee/6/api/javax/xml/bind/annotation/XmlRootElement.html [CODETERM1] or URL_ URL_http://jackson.codehaus.org/1.9.9/javadoc/org/codehaus/jackson/map/annotate/Js onRootName.html [CODETERM2] .. details
  • In particular, we are interested in the URL_http://fasterxml.github.io/jackson-databind/javadoc/2.0.0/com/fasterxm l/jackson/databind/ObjectWriter.html#withRootName%28java.lang.String%29 [CODETERM5] method: CODESNIPPET_JAVA2 .. details
  • In your case, you are serializing a list, which is why the root name is 'ArrayList' (simple name of the type being serialized).. details
  • Well, by default Jackson uses one of two annotations when trying to determine the root name to be displayed for wrapped values - URL_http://docs.oracle.com/ javaee/6/api/javax/xml/bind/annotation/XmlRootElement.html [CODETERM1] or URL_ URL_http://jackson.codehaus.org/1.9.9/javadoc/org/codehaus/jackson/map/annotate/Js onRootName.html [CODETERM2] .. details
  • Object Writer This is the preferable option.. details
  • In your case, you are serializing a list, which is why the root name is 'ArrayList' (simple name of the type being serialized).. details
  • Object Writer This is the preferable option.. details
  • Any help in this regard is welcome.. details
  • Thanks .. details
  • This way you'd know when the JSON object is finished (and, FWIW, whether it's well-formed).. details
  • So my suggestion would be pass it through a simple streaming parser (along the lines of [this article, using Jackson]( URL_http://www.mkyong.com/java/jackson - streaming-api-to-read-and-write-json/), see point 2).. details
  • So my suggestion would be pass it through a simple streaming parser (along the lines of [this article, using Jackson]( URL_http://www.mkyong.com/java/jackson - streaming-api-to-read-and-write-json/), see point 2).. details
  • Jackson Unexpected character ('h' (code 104)): expected a valid value.. details
  • Jackson Unexpected character ('h' (code 104)): expected a valid value.. details
  • Approach proposed by Rusty Kuntz works perfect for my case.. details
  • I hope this is not a Jackson or Jersey bug.. details
  • I want my JSON to look like this: CODESNIPPET_JAVA1 .. details
  • jackson 1.9.x use custom annotation for deserialization.. details
  • And a class like this CODESNIPPET_JAVA2 .. details
  • The MixIn was exactly what I was looking for and worked great.. details
  • Thanks.. details
  • Thanks.. details
  • The MixIn was exactly what I was looking for and worked great.. details
  • [This question]( URL_http://stackoverflow.com/questions/3653996/how-to-parse-a -json-string-into-jsonnode-in-jackson) may be helpful.. details
  • Jackson and Gson keep being the best library to help you.. details
  • Expecting something like: CODESNIPPET_JAVA3 .. details
  • yes... thats correct " assylias ".. thank you for your answer... details
  • I think Jackson works well.. details
  • EDIT: If you can't upgrade to Jackson 1.8 or higher to use this feature, you could do something like: CODESNIPPET_JAVA1 .. details
  • A simple hack would be to enable URL_http://fasterxml.github.com/jackson-datab ind/javadoc/2.1.1/com/fasterxml/jackson/databind/DeserializationFeature.html#A CCEPT_SINGLE_VALUE_AS_ARRAY [DeserializationFeature#ACCEPT_SINGLE_VALUE_AS_ARRAY] and then use Daniel's answer.. details
  • A simple hack would be to enable URL_http://fasterxml.github.com/jackson-datab ind/javadoc/2.1.1/com/fasterxml/jackson/databind/DeserializationFeature.html#A CCEPT_SINGLE_VALUE_AS_ARRAY [DeserializationFeature#ACCEPT_SINGLE_VALUE_AS_ARRAY] and then use Daniel's answer.. details
  • If you want speed you will have to look at the super popular Jackson Json.. details
  • I have tested and benchmarked both Gson and Jackson and I can tell you that in some use cases Jackson is 15 times faster on both serialization and deserialization, even on very big objects.. details
  • My use cases : I use jackson as serialization when I need to save blobs to storage systems (Redis, Cassandra, Mongo, ... sometime mysql too).. details
  • EDIT : I am aware that my example doesn't follow a lot of the best practices pointed out in the jackson page but it allows me to have simple to understand code that looks like the Gson.toJson and Gson.fromJson (which I started with too and switched on later to Jackson) Gson.toJson(object) JsonMapper.INSTANCE.mapper().writeValueAsString(object)Gson.fromJson(object, clazz) JsonMapper.INSTANCE.mapper().readValue(jsonString, clazz); .. details
  • I'd advise you to read about all the jackson json annotations for handling subtypes (usefull for RPC-style systems).. details
  • I have tested and benchmarked both Gson and Jackson and I can tell you that in some use cases Jackson is 15 times faster on both serialization and deserialization, even on very big objects.. details
  • You can use URL_http://fasterxml.github.com/jackson- databind/javadoc/2.1.0/com/fasterxml/jackson/databind/JsonNode.html [JsonNode] as type for your value.. details
  • I think that JsonNodes are the most convenient way way to handle raw JSON because they offer a broad functionality beyond those simple checks.. details
  • Thanks.. details
  • This object has a property "value" which is sometimes a String and sometimes an array of Strings.. details
  • I was wondering if some one could give me a hint on what is the correct way of defining CODETERM2 in my class.. details
  • Another option of course is to use a custom deserializer, and just add hooks to look for the actual objects you're interested in and discard everything else, or to use the Jackson _Tree Model_ approach, throw away the top-level JsonNode, and take the JsonNodes that wrap your Vendors, call getTextValue, and pass _that_ to mapper.readValue.. details
  • Spring MVC integrates very well with Jackson for converting the POJO to json and back.. details
  • This has become very easy with Jackson 2.0 and the Joda module.. details
  • vendors has as value an array, which has a single object, and the single object has a 'vendor' property, which is followed by a bare top-level opject.. details
  • (Since the JSON doesn't contain type information, switching to another serialization API, like URL_http://jackson.codehaus.org [Jackson] , wouldn't provide for a simpler solution.). details
  • (Since the JSON doesn't contain type information, switching to another serialization API, like URL_http://jackson.codehaus.org [Jackson] , wouldn't provide for a simpler solution.). details
  • I have to improve performances while reading a json from an URL using Jackson.The solution is to ignore some nodes unneeded for the treatment after, and I'm not seeing how?. details
  • Thanks.. details
  • URL_http://wiki.fasterxml.com/JacksonBestPracticesPerformance [Here] are some best practices to improve performances with Jackson.. details
  • URL_http://wiki.fasterxml.com/JacksonBestPracticesPerformance [Here] are some best practices to improve performances with Jackson.. details
  • Thanks in advance for any response.. details
  • The reason I want to do this is to be able to parse the json later using the correct parser (it depends on the application that sends the request so it is impossible to know in advance).. details
  • Use a JSON Streaming parser like URL_https://code.google.com/p/json-simple/ [json-simple] or URL_http://wiki.fasterxml.com/JacksonHome [Jackson] .. details
  • Use a JSON Streaming parser like URL_https://code.google.com/p/json-simple/ [json-simple] or URL_http://wiki.fasterxml.com/JacksonHome [Jackson] .. details
  • For anyone who comes to this page in the future, I'd like to note that this only works with Jackson < 2.0 (when it was Codehaus, before it was migrated to FasterXML).. details
  • Thanks a lot!!. details
  • My question is, Is this a good idea?. details
  • I am finding it so easy to use Jackson to map my objects to and fro json and java for storing in database.. details
  • For json serialization/deserialization, I suggest the jackson library.Here is my code,it works fine on my computer!. details
  • There is a great example by _jlabedo_ URL_http://stackoverflow.com/questions/12676249/how-do-i-serialize-an- associated-object-differently-using-jackson-and-annotation [here] , but I can't realize how to use it in my situation.. details
  • Jackson JSON: dynamically change the view.. details
  • Thanks in advance.. details
  • Good time!. details
  • There is a great example by _jlabedo_ URL_http://stackoverflow.com/questions/12676249/how-do-i-serialize-an- associated-object-differently-using-jackson-and-annotation [here] , but I can't realize how to use it in my situation.. details
  • Can you report this at: URL_https://github.com/FasterXML/jackson-databind/issues [ URL_https://github.com/FasterXML/jackson-databind/issues ] along with information like which Jackson version you are using?. details
  • Can you report this at: URL_https://github.com/FasterXML/jackson-databind/issues [ URL_https://github.com/FasterXML/jackson-databind/issues ] along with information like which Jackson version you are using?. details
  • Can you report this at: URL_https://github.com/FasterXML/jackson-databind/issues [ URL_https://github.com/FasterXML/jackson-databind/issues ] along with information like which Jackson version you are using?. details
  • Can you report this at: URL_https://github.com/FasterXML/jackson-databind/issues [ URL_https://github.com/FasterXML/jackson-databind/issues ] along with information like which Jackson version you are using?. details
  • I am expecting something like [1, null, 10] in the response, but do not understand why Jackson throws NPE instead of serializing a null value.. details
  • I am expecting something like [1, null, 10] in the response, but do not understand why Jackson throws NPE instead of serializing a null value.. details
  • So you may use it something like this: CODESNIPPET_JAVA1 .. details
  • So you may use it something like this: CODESNIPPET_JAVA1 .. details
  • _Offtop:_ usually it's quite useful to specify explicit instance of CODETERM7 , because: you can configure it in the way you want you can use its reference through CODETERM8 .. details
  • _Offtop:_ usually it's quite useful to specify explicit instance of CODETERM7 , because: you can configure it in the way you want you can use its reference through CODETERM8 .. details
  • But it works only for CODETERM1 , but not for CODETERM2 .. details
  • But you may combine CODETERM3 with CODETERM4 , something like the following: CODESNIPPET_JAVA2 .. details
  • But it works only for CODETERM1 , but not for CODETERM2 .. details
  • But you may combine CODETERM3 with CODETERM4 , something like the following: CODESNIPPET_JAVA2 .. details
  • This is IMHO simpler, and should works for your case above, but not as flexible as the first alternative.. details
  • Then based on the value of the collections, you can decide to serialize the original CODETERM3 object, or the alternative, CODETERM4 -less object.. details
  • Thank you~~ I have solved this by n1ckolas's advice.. details
  • Also, this works for both arrays and collection.. details
  • Thank you first.My jackson version is 2.1.1, and Spring-3.2.2 import better support for this verson of jackson.. details
  • Jackson 2 has some URL_http://wiki.fasterxml.com/JacksonFeatureObjectIdentity [great-solutions] to help with that.. details
  • If you try to map a class as a JSON object using Jackson, all the primitives will be fine.. details
  • Also, if you have any recursive mappings (like a User has a Team, and the Team has a list of users) that can cause an infinite loop.. details
  • Also, if you have any recursive mappings (like a User has a Team, and the Team has a list of users) that can cause an infinite loop.. details
  • Jackson 2 has some URL_http://wiki.fasterxml.com/JacksonFeatureObjectIdentity [great-solutions] to help with that.. details
  • So what could make it like above?. details
  • I had the same problem a few days back and found that the key cannot be a pojo for jackson to successfully serialize/deserialize the map.. details
  • I had the same problem a few days back and found that the key cannot be a pojo for jackson to successfully serialize/deserialize the map.. details
  • Your solution is probably the only working in this situation.. details
  • Using reflection would probably lead to possible memory visibility issues on that classes, and this is what I was trying to avoid using immutable classes.I think there is no other solution than querying an enhancement request to Jackson: thank you very much for your answer!.. details
  • Your solution is probably the only working in this situation.. details
  • Using reflection would probably lead to possible memory visibility issues on that classes, and this is what I was trying to avoid using immutable classes.I think there is no other solution than querying an enhancement request to Jackson: thank you very much for your answer!.. details
  • Hope I could help.. details
  • All these stuff I parse to CODETERM1 and everything works perfectly but when I got this response from the server: CODESNIPPET_JAVA2 .. details
  • I get different Json responses from the server like simple arrays: CODESNIPPET_JAVA1 .. details
  • I recommend logging an enhancement request at URL_https://github.com/FasterXML /jackson-databind/issues.. details
  • I recommend logging an enhancement request at URL_https://github.com/FasterXML /jackson-databind/issues.. details
  • You'll need to change your pom.xml if you're migrating from 1.x (Step 1: Update Maven / JAR dependencies from URL_http://www.cowtowncoder.com/blog/archives/2012/04/entry_469.html is all you need for the builtin support to latch on).. details
  • If you really want a capital letter use the URL_http://fasterxml.github.com/jackson- annotations/javadoc/2.1.0/com/fasterxml/jackson/annotation/JsonProperty.html [@JsonProperty-annotation] on the setter (or - for serialization - on the getter) like this: CODETERM2 .. details
  • If anyone could help I'd appreciate it.. details
  • The final result properties would be something like: CODESNIPPET_JAVA2 .. details
  • Thx in advance!. details
  • suppose I've got a collection of people defined like this in JSON.. details
  • +1 for the result of different names!.. details
  • Great answer.. details
  • Please see the following stacktrace CODESNIPPET_JAVA4 .. details
  • I have a use-case where I need to maintain two sets of JSON output, one with pretty names for the JSON property and one without.. details
  • So I decided to customize my ObjectMapper so that it ignores the @JsonProperty("pretty name") annotation on the fields and uses the field property names.. details
  • The JSON output with pretty names would like like follows CODESNIPPET_JAVA2 .. details
  • Thanks.. details
  • My ObjectMapper configuration code looks like CODESNIPPET_JAVA3 .. details
  • Thanks.. details
  • For what it is worth, Jackson 2.0 includes full support for eliminating cycles and duplication; see javadocs for @JsonIdentityInfo annotation for details.. details
  • A Map will work fine for my purposes.. details
  • Great thanks!. details
  • Any help is greatly appreciated, thanks!. details
  • I working with extra large json, average 2000 images, to each image a imageBase64.. details
  • But there is another way to do this as well, which is bit less work, explained at " URL_http://www.cowtowncoder.com/blog/archives/2012/08/entry_476.html [Forcing-escaping-of-HTML-characters-in-JSON-using-Jackson] " .. details
  • But there is another way to do this as well, which is bit less work, explained at " URL_http://www.cowtowncoder.com/blog/archives/2012/08/entry_476.html [Forcing-escaping-of-HTML-characters-in-JSON-using-Jackson] " .. details
  • To resolve this issue, I ended up creating a custom String serializer for Jackson.. details
  • URL_http://stackoverflow.com/questions/12921812/create-a-custom-jackson- annotation [This-question] shows elegant way to combine them into one annotation.. details
  • Updated with working example of custom serializer.. details
  • I have just started using Jackson because of the integration with the Spring Framework and have run into an issue with single quotes in a value.. details
  • URL_http://wiki.fasterxml.com/JacksonTreeModel [The-tree-model] offers a number of navigation methods to traverse the tree and extract the data you're interested in.. details
  • The Jackson documentation contains examples for both techniques, applying them in your program should not be too hard, use your debugger to investigate the data structures created by the parser to see how the document got mapped.. details
  • URL_http://wiki.fasterxml.com/JacksonTreeModel [The-tree-model] offers a number of navigation methods to traverse the tree and extract the data you're interested in.. details
  • If all you're really interested in in this input structure are lat and lng full mapping is probably the least adapted of the different approaches offered by Jackson, as it forces you to write classes to represent the different layers in your data.. details
  • There is no way to map JSON you show automatically; it is not one of 4 types supported by Jackson.. details
  • There is no way to map JSON you show automatically; it is not one of 4 types supported by Jackson.. details
  • So far, all is good :) However, the JSON I'm getting from the server has a slightly different structure: CODESNIPPET_JAVA5 .. details
  • Thanks!. details
  • If this is just not possible, is there another way to accomplish this (without the need of an custom serializer for Holder; a custom serializer just for the 'items' array would be fine)?. details
  • What does the JSON look like?. details
  • try out JSON Generator... URL_http://jackson.codehaus.org/1.1.2/javadoc/org/codehaus/jackson/JsonGenerat or.html [API-Reference] URL_http://www.mkyong.com/java/jackson-streaming-api-to-read-and-write-json/ [good-example] .. details
  • try out JSON Generator... URL_http://jackson.codehaus.org/1.1.2/javadoc/org/codehaus/jackson/JsonGenerat or.html [API-Reference] URL_http://www.mkyong.com/java/jackson-streaming-api-to-read-and-write-json/ [good-example] .. details
  • Thanks!. details
  • I am using URL_https://github.com/FasterXML/jackson-core [Jackson] and would like to pretty-print JSON such that each element in arrays goes to each line, like: CODESNIPPET_JAVA1 .. details
  • Thanks!. details
  • Setting CODETERM1 true only inserts newline characters for object fields, not array elements, printing the object in this way instead: CODESNIPPET_JAVA2 .. details
  • I am using URL_https://github.com/FasterXML/jackson-core [Jackson] and would like to pretty-print JSON such that each element in arrays goes to each line, like: CODESNIPPET_JAVA1 .. details
  • With this annotation Jackson is able to map to the correct parent when deserializing.. details
  • It looks like it was added in URL_http://fasterxml.github.com/jackson- core/javadoc/2.1.0/com/fasterxml/jackson/core/JsonParser.html [2.1.0] .. details
  • It looks like there is no other version of jackson except for jackson2.. details
  • Thanks for the help EDIT here is a grep for jackson in my dependencies CODESNIPPET_JAVA4 .. details
  • Going from POJO to JSON works perfectly but going the other direction does not.. details
  • A good read about this topic can be found URL_http://jackson- users.ning.com/forum/topics/how-to-handle-cyclic-references-in-a -bidirectional-many-to-many [here] .. details
  • The serializer could be implemented like this: CODESNIPPET_JAVA3 .. details
  • Jackson-databind (at least 2.1.3) provides special CODETERM1 ( CODETERM2 ) Example: CODESNIPPET_JAVA1 .. details
  • Jackson-databind (at least 2.1.3) provides special CODETERM1 ( CODETERM2 ) Example: CODESNIPPET_JAVA1 .. details
  • and voila, no more null values.. details
  • and voila, no more null values.. details
  • and voila, no more null values.. details
  • and voila, no more null values.. details
  • Jackson JSON generator creates null JSON values for missing objects.. details
  • Is there a way to stop Jackson from generating null object/value when an object is missing?. details
  • Is there a way to stop Jackson from generating null object/value when an object is missing?. details
  • I like Jackson from URL_http://codehaus.org/ [ URL_http://codehaus.org/ ] for JSON parsing.. details
  • You can use a library like from URL_http://www.json.org/java/index.html [ URL_http://www.json.org/java/index.html ] or URL_http://jackson.codehaus.org/ [ URL_http://jackson.codehaus.org/ ] or you can try to do it manually.. details
  • You can use one or two tools for this: one common combination is to use Jackson for JSON, and JAXB for XML, to use their respective strengths.. details
  • Thanks, finally I've handled this in a different way.. details
  • I'm going to post an answer to show how!. details
  • I'd like to be able to deserialize using annotations along with the standard mapper code, i.e.. details
  • I'd like the array to map to a list of child objects within the parent I'm mapping.. details
  • mapper.readValue(jsonString, MediaObject.class) Everything works fine with the "id" and "title" fields, but my list of MediaContent objects always comes up null.. details
  • I'd like the array to map to a list of child objects within the parent I'm mapping.. details
  • I'd like to be able to deserialize using annotations along with the standard mapper code, i.e.. details
  • mapper.readValue(jsonString, MediaObject.class) Everything works fine with the "id" and "title" fields, but my list of MediaContent objects always comes up null.. details
  • How can I read a value as JSON while using JsonParser.nextToken in Jackson.. details
  • In this example, I want a JSON string containing all three tags and their values for each report ID.. details
  • I would like to further speed up processing, by reading the entire "Tags" value array as a JSON string.. details
  • The ORMLite annotations and the Jackson annotations should be able to play well together.. details
  • The ORMLite annotations and the Jackson annotations should be able to play well together.. details
  • Here is a simple Jackson example: CODESNIPPET_JAVA2 .. details
  • You can easily serialize this with a variety of JSON libraries like URL_http://jackson.codehaus.org/ [Jackson] or URL_http://code.google.com/p /google-gson/ [GSON] .. details
  • You can easily serialize this with a variety of JSON libraries like URL_http://jackson.codehaus.org/ [Jackson] or URL_http://code.google.com/p /google-gson/ [GSON] .. details
  • Here is a simple Jackson example: CODESNIPPET_JAVA2 .. details
  • I would suggest you to use Jackson URL_http://fasterxml.github.com/jackson- databind/javadoc/2.0.0/com/fasterxml/jackson/databind/ObjectMapper.html [ObjectMapper] to convert your java objects to CODETERM1 there a lot of options for configuring Jackson CODETERM2 and it is more easier to use.. details
  • I'm trying to write a code which can take either xml or JSON input and out JSON or XML respectively.. details
  • I would consider JSON to be more structured than Excel, but that's just me.... details
  • My class that I am passing as root to object mapper looks like this: CODESNIPPET_JAVA4 .. details
  • Just follow this how to: URL_https://github.com/FasterXML/jackson-dataformat-xml [ URL_https://github.com/FasterXML/jackson-dataformat-xml ] @JacksonXmlProperty allows specifying XML namespace and local name for a property; as well as whether property is to be written as an XML element or attribute.. details
  • and it works fine.. details
  • The missing TAG was @JacksonXmlProperty(isAttribute=true) so just change the getter to: CODESNIPPET_JAVA2 .. details
  • Just follow this how to: URL_https://github.com/FasterXML/jackson-dataformat-xml [ URL_https://github.com/FasterXML/jackson-dataformat-xml ] @JacksonXmlProperty allows specifying XML namespace and local name for a property; as well as whether property is to be written as an XML element or attribute.. details
  • Is there a way to get attributes instead of elements?Thanks for help!. details
  • Or, you can use the CODETERM1 URL_http://wiki.fasterxml.com/JacksonAnnotations [annotation-of-Jackson] on getter method of that field and you see there in no such key-value pair in resulted JSON.. details
  • Or, you can use the CODETERM1 URL_http://wiki.fasterxml.com/JacksonAnnotations [annotation-of-Jackson] on getter method of that field and you see there in no such key-value pair in resulted JSON.. details
  • Jackson works on setters-getters of fields.. details
  • I use Jackson for JSON serialisation in a REST application like this: CODESNIPPET_JAVA1 .. details
  • However the use of CODETERM2 is deprecated in favor of CODETERM3 (1)which itself is deprecated in favor of CODETERM4 or _configure through ObjectMapper_ (2) But what I think is done using CODETERM5 is indeed configuring an ObjectMapper (I took a look at the code).. details
  • (*) Necessary otherwise fields annotated with @XmlElementRef will appear in JSON output as CODETERM1 when null (instead of not appearing), while it's fine for fields annotated with @XmlElement.. details
  • Jackson read value as string.. details
  • I have an object with unknown values, say CODESNIPPET_JAVA1 .. details
  • And I just want to store the value of "data" as a string into a variable/database.. details
  • Using it informs Jackson that you want type hints included in generated JSON, that it can use to resolve the actual type when it comes to de-serialization.. details
  • Assuming you are using the Jackson provider, then the best way to handle this would be via the CODETERM1 annotation.. details
  • Thank you!. details
  • In JSON it looks like this: CODESNIPPET_JAVA1 .. details
  • I saved this JSON String to the file initial-elements-v02.json and I was thinking about something like this to deserialize it: CODESNIPPET_JAVA2 .. details
  • Then, I pass the object to my REST service and it works fine.. details
  • Please have a look at the code below: CODESNIPPET_JAVA1 .. details
  • I've used them in some of my own projects and they work very well if correctly implemented.. details
  • I've used them in some of my own projects and they work very well if correctly implemented.. details
  • Also, a good general approach for creating a Jackson mapping is to instantiate a Java instance of your classes and then create the JSON from that, Java -> JSON.. details
  • EDIT: While what j0ntech says does seem to have been true, it turns out that was not the whole story.. details
  • Any help is most appreciated.. details
  • So that, finally, the geo hierarchy looks like so: CODESNIPPET_JAVA3 .. details
  • Assuming the Jackson serializer can see the fields, the direct serialization of this implementation will look like this: CODESNIPPET_JAVA4 .. details
  • This JSON rendering is no good because it contains the unnecessary artifacts from the Tree and Node classes, i.e.. details
  • thanks, can you point me in the direction where this is explained ?. details
  • thanks, can you point me in the direction where this is explained ?. details
  • Play has one built-in (a wrapper around jackson - which is really fast).. details
  • Play has one built-in (a wrapper around jackson - which is really fast).. details
  • This uses some defaults but should be enough.. details
  • EDIT: Corrected a typo ( CODETERM5 I'm using is valid) .. details
  • EDIT: Corrected a typo ( CODETERM5 I'm using is valid) .. details
  • Any pointers will be appreciated.. details
  • But still I've not been able to do the correct POJO mapping.. details
  • URL_http://stackoverflow.com/questions/11747370/jackson-how-to-process- deserialize-nested-json [This] one looks very similar to mine as the correct response says CODETERM4 , which I think is the case with my data as well.. details
  • Primitives, however, cannot be set to null, so this annotation doesn't work for something like an int that hasn't been touched and defaults to 0.. details
  • Primitives, however, cannot be set to null, so this annotation doesn't work for something like an int that hasn't been touched and defaults to 0.. details
  • Welcome to stackoverflow.. details
  • Welcome to stackoverflow.. details
  • Thanks for the response.. details
  • Thanks for the response.. details
  • If I were to design this in Jackson, how should my Java object look like?. details
  • I've added next jackson annotations in hope to deserialize json above: CODESNIPPET_JAVA3 .. details
  • I'm just putting forward my solution (using JAXB), as I have used it to solve issues like his when I was using the Jackson lib.... details
  • If I were to design this in Jackson, how should my Java object look like?. details
  • Thanks .. details
  • Another solution is to write a custom Jackson serializer that knows how to serialize these kind of objects.. details
  • Of course, you will lose all the benefits from lazy loading.. details
  • But I don't know if your content is like that.. details
  • This will work on Jackson as well as many other Java JSON libs (Gson, Genson at least), and will also be faster method to use.. details
  • This will work on Jackson as well as many other Java JSON libs (Gson, Genson at least), and will also be faster method to use.. details
  • Try this lib, that's a good one, with the jackson we use only in the server side, because jackson is more slow in the Android than gson, at least in our test.. details
  • Try this lib, that's a good one, with the jackson we use only in the server side, because jackson is more slow in the Android than gson, at least in our test.. details
  • The json looks like this, only it comes up twice in the file.. details
  • I don't think Jackson supports any type of configuration to enable it to serialize a transient field.. details
  • However, Jackson recently started parsing XMl, too, which is a virtue.. details
  • It is even faster than Jackson and easier to use.. details
  • It is even faster than Jackson and easier to use.. details
  • "\u00fc" with "" the mapping works perfect.. details
  • Further more GSON really seems to be faster than Jackson Json.. details
  • Further more GSON really seems to be faster than Jackson Json.. details
  • The mapping of json strings is only working, if the string does not contain any german umlaut, otherwise i get an "JsonMappingException: Can not deserialize instance of [...] out of START_ARRAY.. details
  • Thanks for the answer.. details
  • available since URL_https://github.com/FasterXML/jackson-databind/issues/24 [ URL_https://github.com/FasterXML/jackson-databind/issues/24 ] just tested it works with version 2.1.2 answer to TheZuck**: I tried your example, got Json: CODESNIPPET_JAVA2 .. details
  • available since URL_https://github.com/FasterXML/jackson-databind/issues/24 [ URL_https://github.com/FasterXML/jackson-databind/issues/24 ] just tested it works with version 2.1.2 answer to TheZuck**: I tried your example, got Json: CODESNIPPET_JAVA2 .. details
  • It looks like the Jakson parser never reads the @JsonTypeInfo annotation on the second lavel class.. details
  • I have one special @JsonSubTypes that is called "CUSTOM".. details
  • I have an abstract type at "level one" describing an operation on a single value.. details
  • thanks for u'r answer i will try,thanks for replying.. details
  • thanks for u'r answer i will try,thanks for replying.. details
  • Can you please tell me how can I resolve this situation?. details
  • Can you please tell me how can I resolve this situation?. details
  • and the method sig looks like this: CODESNIPPET_JAVA2 .. details
  • Thanks,Behzad .. details
  • If you do know the actual type, it should be relatively straight-forward with Jackson.You need to use a generic wrapper type like: CODESNIPPET_JAVA1 .. details
  • extends MyBaseType"), but in general dynamic type can't be specified.. details
  • but if it is more dynamically generated, something like: CODESNIPPET_JAVA3 .. details
  • Thanks in advance.. details
  • I would like to use the URL_http://jackson.codehaus.org/ [Jackson-JSON] object/JSON mapping framework to do this mapping, and so far this is my best attempt: CODESNIPPET_JAVA3 .. details
  • I would like to use the URL_http://jackson.codehaus.org/ [Jackson-JSON] object/JSON mapping framework to do this mapping, and so far this is my best attempt: CODESNIPPET_JAVA3 .. details
  • One advantage of this setup is that it's extensible.. details
  • Thanks.. details
  • Any idea how I can get Jackson to deserialize successfully?. details
  • I was hoping that if the type information were included in the serialization step, this should be a non-issue.. details
  • I find programmerbruce's approach to be the most clear and easy to get working (example below).I got the information from his answer to a related question: URL_http://stackoverflow.com/a/6339600/1148030 [ URL_http://stackoverflow.com/a/6339600/1148030 ] and the related blog post: URL_http://programmerbruce.blogspot.fi/2011/05/deserialize-json-with-jackson- into.html [ URL_http://programmerbruce.blogspot.fi/2011/05/deserialize-json-with - jackson-into.html] Also check out this friendly wiki page (also mentioned in Eugene Retunsky's answer): URL_http://wiki.fasterxml.com/JacksonPolymorphicDeserialization [ URL_http://wiki.fasterxml.com/JacksonPolymorphicDeserialization ] Another nice wiki page: URL_http://wiki.fasterxml.com/JacksonMixInAnnotations [ URL_http://wiki.fasterxml.com/JacksonMixInAnnotations ] Here is a short example to give you the idea: Configure the ObjectMapper like this: CODESNIPPET_JAVA1 .. details
  • On second service you could define the BaseMixin like this: CODESNIPPET_JAVA3 .. details
  • I find programmerbruce's approach to be the most clear and easy to get working (example below).I got the information from his answer to a related question: URL_http://stackoverflow.com/a/6339600/1148030 [ URL_http://stackoverflow.com/a/6339600/1148030 ] and the related blog post: URL_http://programmerbruce.blogspot.fi/2011/05/deserialize-json-with-jackson- into.html [ URL_http://programmerbruce.blogspot.fi/2011/05/deserialize-json-with - jackson-into.html] Also check out this friendly wiki page (also mentioned in Eugene Retunsky's answer): URL_http://wiki.fasterxml.com/JacksonPolymorphicDeserialization [ URL_http://wiki.fasterxml.com/JacksonPolymorphicDeserialization ] Another nice wiki page: URL_http://wiki.fasterxml.com/JacksonMixInAnnotations [ URL_http://wiki.fasterxml.com/JacksonMixInAnnotations ] Here is a short example to give you the idea: Configure the ObjectMapper like this: CODESNIPPET_JAVA1 .. details
  • On second service you could define the BaseMixin like this: CODESNIPPET_JAVA3 .. details
  • I find programmerbruce's approach to be the most clear and easy to get working (example below).I got the information from his answer to a related question: URL_http://stackoverflow.com/a/6339600/1148030 [ URL_http://stackoverflow.com/a/6339600/1148030 ] and the related blog post: URL_http://programmerbruce.blogspot.fi/2011/05/deserialize-json-with-jackson- into.html [ URL_http://programmerbruce.blogspot.fi/2011/05/deserialize-json-with - jackson-into.html] Also check out this friendly wiki page (also mentioned in Eugene Retunsky's answer): URL_http://wiki.fasterxml.com/JacksonPolymorphicDeserialization [ URL_http://wiki.fasterxml.com/JacksonPolymorphicDeserialization ] Another nice wiki page: URL_http://wiki.fasterxml.com/JacksonMixInAnnotations [ URL_http://wiki.fasterxml.com/JacksonMixInAnnotations ] Here is a short example to give you the idea: Configure the ObjectMapper like this: CODESNIPPET_JAVA1 .. details
  • I find programmerbruce's approach to be the most clear and easy to get working (example below).I got the information from his answer to a related question: URL_http://stackoverflow.com/a/6339600/1148030 [ URL_http://stackoverflow.com/a/6339600/1148030 ] and the related blog post: URL_http://programmerbruce.blogspot.fi/2011/05/deserialize-json-with-jackson- into.html [ URL_http://programmerbruce.blogspot.fi/2011/05/deserialize-json-with - jackson-into.html] Also check out this friendly wiki page (also mentioned in Eugene Retunsky's answer): URL_http://wiki.fasterxml.com/JacksonPolymorphicDeserialization [ URL_http://wiki.fasterxml.com/JacksonPolymorphicDeserialization ] Another nice wiki page: URL_http://wiki.fasterxml.com/JacksonMixInAnnotations [ URL_http://wiki.fasterxml.com/JacksonMixInAnnotations ] Here is a short example to give you the idea: Configure the ObjectMapper like this: CODESNIPPET_JAVA1 .. details
  • I need to have functional which allow me to serialize CODETERM1 .I create custom Serializer inherited from JsonSerializer.I also create simple module and register it in my mapper; CODESNIPPET_JAVA1 .. details
  • And when I just serializing an instance of CustomType1 it works perfectly, but when I creating map and trying to serialize it, than jackson skip my serializer and using CODETERM2 .. details
  • Having said that, the majority of your annotations are actually from Jackson, which _can_ do what your trying to accomplish.. details
  • A good alternative, if you have a lot of JSON in your app, would be to use URL_http://wiki.fasterxml.com/JacksonDocumentation [Jackson] for the (de)serialization.. details
  • A good alternative, if you have a lot of JSON in your app, would be to use URL_http://wiki.fasterxml.com/JacksonDocumentation [Jackson] for the (de)serialization.. details
  • With the JSON you provided and the annotation you were using, it found CODETERM2 as the JSON element which maps to the CODETERM3 POJO but the value for CODETERM4 was a CODETERM5 and couldn't be mapped.. details
  • Now, that aside, your JSON should look more like this: CODESNIPPET_JAVA1 .. details
  • Either one or other case works correctly with one setter of specific type (String od custom Response class), but when I put into my entity bean overriden setter to be able to handle both cases, exception is thrown: CODESNIPPET_JAVA3 .. details
  • EDIT: how it works now Setter in entity bean: CODESNIPPET_JAVA4 .. details
  • I was thinking about three solutions, but I did not get any of them working: using only String setter and inside use ObjectMapper to unmarshall that string, if it is not equal to "error", but when that JS Array comes, it's not string so no String setter is used :(.. details
  • You will need to determine the correct way to do this with the JSON library being used in your application, but with Jackson you would have used the @JsonTypeInfo annotation to scope your polymorphic types.. details
  • You can populate more specific, custom objects you've written to represent your JSON entities using the (3rd party) Jackson's URL_https://github.com/FasterXML/jackson-databind [data-binding-functionality] (see URL_http://stackoverflow.com/questions/1884979/json-to-groovy-parser [this-question] as well).. details
  • You can populate more specific, custom objects you've written to represent your JSON entities using the (3rd party) Jackson's URL_https://github.com/FasterXML/jackson-databind [data-binding-functionality] (see URL_http://stackoverflow.com/questions/1884979/json-to-groovy-parser [this-question] as well).. details
  • With Spring (and Jackson for JSON marshall/unmarshall) you can do something like: CODESNIPPET_JAVA1 .. details
  • JacksonJsonProvider) You create a @Provider that sets up an ObjectMapper instance with Pretty Printing enabled like so: CODESNIPPET_JAVA1 .. details
  • You then have your Resource return the resolved Family object instead of trying to transform it to Json... let the Message Body Writer do that... i.e.. details
  • Would appreciate it if someone could point me in the right direction.. details
  • Using Java 6, Tomcat 7, Jersey 1.15, Jackson 2.0.6 (from FasterXml maven repo), & www.json.org parser, I am trying to pretty print the JSON String so it will look indented by the curl -X GET command line.. details
  • I created a simple web service which has the following architecture: My POJOs (model classes): Family.java CODESNIPPET_JAVA1 .. details
  • This is adding newline escape sequences and placing double quotes (but not indenting like it should it does have 4 spaces after the new line but its all in one line).. details
  • I'm not sure if this use case is supported in Jackson, but below is an example of how you could do this using MOXy's CODETERM1 extension.. details
  • I realize there are other solutions out there, like Jackson, but this is part of a large codebase that already uses FlexJSON a lot.. details
  • One popular JSON-to-Java binding library is URL_http://jackson.codehaus.org/ [Jackson] One popular XML-to-Java binding library is URL_http://xstream.codehaus.org/ [XStream] If you intend to use this in a web application, maybe you would like to consider URL_http://static.springsource.org/spring/docs/current/spring- framework-reference/html/mvc.html [Spring-3-MVC] 's facilities for this.. details
  • One popular JSON-to-Java binding library is URL_http://jackson.codehaus.org/ [Jackson] One popular XML-to-Java binding library is URL_http://xstream.codehaus.org/ [XStream] If you intend to use this in a web application, maybe you would like to consider URL_http://static.springsource.org/spring/docs/current/spring- framework-reference/html/mvc.html [Spring-3-MVC] 's facilities for this.. details
  • Jackson most definitely supports this (see " URL_http://wiki.fasterxml.com/JacksonInFiveMinutes [Jackson-in-5-minutes] ", look for "Tree mode") for example: CODESNIPPET_JAVA1 .. details
  • Jackson most definitely supports this (see " URL_http://wiki.fasterxml.com/JacksonInFiveMinutes [Jackson-in-5-minutes] ", look for "Tree mode") for example: CODESNIPPET_JAVA1 .. details
  • I've checked out GSON and Jackson, but neither seem to support this.. details
  • I'd recommend including a simple registry (map) of foobar/barfoo-to-type entries in the solution, much like the sixth example in URL_http://programmerbruce.blogspot.com/2011/05 /deserialize-json-with-jackson-into.html [my-old-blog-post-from-May-25,-2011 ,-"Deserialize-JSON-with-Jackson-into-Polymorphic-Types---A-Complete-Example"] .. details
  • I'd recommend including a simple registry (map) of foobar/barfoo-to-type entries in the solution, much like the sixth example in URL_http://programmerbruce.blogspot.com/2011/05 /deserialize-json-with-jackson-into.html [my-old-blog-post-from-May-25,-2011 ,-"Deserialize-JSON-with-Jackson-into-Polymorphic-Types---A-Complete-Example"] .. details
  • my ResponseTypeX's are limited, there are about 20 of them, so if i have to do a manual key:value type identification, i'm happy.. details
  • the json structure i want to parse looks like this: CODESNIPPET_JAVA2 .. details
  • i tried to just make the Wrapper accept all possible ResponseTypes as properties, hoping it would just nullify the "unset" ones, e.g.. details
  • See the following answer from the Jackson lead: URL_http://stackoverflow.com/questions/13591952/jackson-support-for-java-generics/13597475#13597475 [JACKSON-support-for-Java-Generics?]. details
  • Jackson supports a subset of JAXB metadata and does not currently support the CODETERM1 class.. details
  • This is not (include attribute) directly supported in Jackson (1.9.2) as of now as, I am wondering is there an easy workaround in Jackson to achieve this.. details
  • Doesn't fit well.. details
  • (except that by default output is not indented: you can enabled indentation using standard Jackson mechanisms) Deserializing POJOs from JSON: CODESNIPPET_JAVA4 .. details
  • you would get something like: CODESNIPPET_JAVA3 .. details
  • you would get something like: CODESNIPPET_JAVA3 .. details
  • Please write back what happened, because I am also interested in the results.. details
  • Maybe it is worth trying.. details
  • Your question interested me so I started searching for recursive bean reference and how to avoid it using Jackson.. details
  • Thanks, .. details
  • Jackson/Jersey hide dynamically sublevels.. details
  • How can I deserialize JSON a object with dynamic fields (like the one called stories in the code below) into an array of objects?. details
  • How to deserialize dynamic JSON fields with Jackson?. details
  • But one thing to note is that 1.9.x version is not really being developed, so if possible you would want to use version for Jackson 2.x (latest being 2.1.1).. details
  • If you don't use JAXB annotated objects, but simple POJO's, you can get the correct behaviour by simply enabling the POJO mapping feature, together with the Jackson JSON library.. details
  • And why on earth this is not standard behaviour I do not know.. details
  • If your using Jackson, it has a feature that allows for proper deserialization in these kind of cases (polymorphic list of items).. details
  • This will add an attribute to each serialized representation of IItem, called @class, which Jackson will detect and use later on to deserialize the correct object instance.. details
  • So what my Java model parts looks like this CODESNIPPET_JAVA2 .. details
  • I've though of only using one object containing all fields (text, link, data), but i'd prefer this type of design which appears better me.. details
  • The issue can best be summarized by the test case below.. details
  • The test works when you comment out the line that registers the module and fails when you leave it in.. details
  • Thanks!. details
  • I'd appreciate any ideas you might have.. details
  • And voil!. details
  • I just added the jackson-all.jar file ( URL_http://wiki.fasterxml.com/JacksonDownload ) and enabled the POJO support in the configuration CODESNIPPET_JAVA1 .. details
  • And voil!. details
  • I just added the jackson-all.jar file ( URL_http://wiki.fasterxml.com/JacksonDownload ) and enabled the POJO support in the configuration CODESNIPPET_JAVA1 .. details
  • It is like this: CODESNIPPET_JAVA1 .. details
  • You may look at the code to get inspiration or simply use the framework in your code.. details
  • When sending out a JSON to be deserialized by Jackson it seems that if the last value of a subelement is CODETERM1 , Jackson will abort the deserialization.. details
  • This looks like a bug to me..?!. details
  • simple Receiver**: CODESNIPPET_JAVA3 .. details
  • Good: If I send it like this, CODETERM5 will still have the CODETERM6 value as desired but the CODETERM7 object will be created with its id: CODESNIPPET_JAVA2 .. details
  • Jackson - best way writes a java list to a json array.. details
  • I am looking for something like: CODESNIPPET_JAVA4 .. details
  • I'd like to have my Dates serialized as strings in the URL_http://en.wikipedia.org/wiki/ISO_8601 [ISO-8601] (with time/timezone) format: CODETERM2 , as it's easily parsed and human readable.. details
  • I'd like to have my Dates serialized as strings in the URL_http://en.wikipedia.org/wiki/ISO_8601 [ISO-8601] (with time/timezone) format: CODETERM2 , as it's easily parsed and human readable.. details
  • I realize that Json doesn't have a proper Date type, so the output (unix time in millis) is "correct".. details
  • I realize that Json doesn't have a proper Date type, so the output (unix time in millis) is "correct".. details
  • Of course doing it this way depends on how your ids are stored but for me it generally makes my code a lot cleaner and the Jackson Library is pretty good performance wise.. details
  • Then you can use the objectMapper from the library to go from an array that you have in memory to a json String like so CODESNIPPET_JAVA2 .. details
  • I recommend the URL_http://jackson.codehaus.org/ [jackson-library] it makes things very easy.. details
  • Of course doing it this way depends on how your ids are stored but for me it generally makes my code a lot cleaner and the Jackson Library is pretty good performance wise.. details
  • I recommend the URL_http://jackson.codehaus.org/ [jackson-library] it makes things very easy.. details
  • Then you can use the objectMapper from the library to go from an array that you have in memory to a json String like so CODESNIPPET_JAVA2 .. details
  • I would prefer to do with a stream like approach (ie.. details
  • I can't figure out how to use both the stream reading API (to go through in order) and the ObjectMapper interface (in order to create Java objects out of JSON) to accomplish this.. details
  • I would prefer to do with a stream like approach (ie.. details
  • The fastest library I know of is Jackson, but I personally prefer Google-GSON because it's fast enough and yet remains very easy to use.. details
  • The fastest library I know of is Jackson, but I personally prefer Google-GSON because it's fast enough and yet remains very easy to use.. details
  • The CODETERM8 annotation looked like it might be relevant but couldn't work out how it would be applied in this case.. details
  • This would typically map directly to a Java CODETERM1 were it not for the fact that we only permit certain value types ( CODETERM2 , CODETERM3 , CODETERM4 , CODETERM5 and CODETERM6 ).. details
  • The CODETERM8 annotation looked like it might be relevant but couldn't work out how it would be applied in this case.. details
  • In addition to one good solution presented (factory method), there are 2 other ways: If 'MyEnum.toString()' would return "coins", you can make Jackson use "toString()" over "name()"with CODETERM1 You could add some other method to return id to use, and mark that method with CODETERM2 annotation (you can actually use that on CODETERM3 as well, instead of enabling above feature) -- if that annotation exists, value returned by that method is used as the id.. details
  • And my enum type looks like this: CODESNIPPET_JAVA4 .. details
  • My JSON looks like this: CODESNIPPET_JAVA2 .. details
  • Help is much appreciated, thanks in advance.. details
  • I do realize that I am trying to deserialize a null value.. details
  • I do realize that I am trying to deserialize a null value.. details
  • CODETERM4 encoding increases the size of the output (the gzip step in serialization is meant to help ameliorate this increase), so I checked Google to see if there was a more efficient alternative, which led me to URL_http://stackoverflow.com/questions/1777309/alternative-to-base64-encoding [this] previous stackoverflow thread that brought up URL_http://en.wikipedia.org/wiki/Ascii85 [Ascii85] encoding as a more efficient alternative - CODETERM5 adds 33% to the size of the output, CODETERM6 adds 25% to the size of the output.. details
  • CODETERM4 encoding increases the size of the output (the gzip step in serialization is meant to help ameliorate this increase), so I checked Google to see if there was a more efficient alternative, which led me to URL_http://stackoverflow.com/questions/1777309/alternative-to-base64-encoding [this] previous stackoverflow thread that brought up URL_http://en.wikipedia.org/wiki/Ascii85 [Ascii85] encoding as a more efficient alternative - CODETERM5 adds 33% to the size of the output, CODETERM6 adds 25% to the size of the output.. details
  • CODETERM4 encoding increases the size of the output (the gzip step in serialization is meant to help ameliorate this increase), so I checked Google to see if there was a more efficient alternative, which led me to URL_http://stackoverflow.com/questions/1777309/alternative-to-base64-encoding [this] previous stackoverflow thread that brought up URL_http://en.wikipedia.org/wiki/Ascii85 [Ascii85] encoding as a more efficient alternative - CODETERM5 adds 33% to the size of the output, CODETERM6 adds 25% to the size of the output.. details
  • CODETERM4 encoding increases the size of the output (the gzip step in serialization is meant to help ameliorate this increase), so I checked Google to see if there was a more efficient alternative, which led me to URL_http://stackoverflow.com/questions/1777309/alternative-to-base64-encoding [this] previous stackoverflow thread that brought up URL_http://en.wikipedia.org/wiki/Ascii85 [Ascii85] encoding as a more efficient alternative - CODETERM5 adds 33% to the size of the output, CODETERM6 adds 25% to the size of the output.. details
  • CODETERM4 encoding increases the size of the output (the gzip step in serialization is meant to help ameliorate this increase), so I checked Google to see if there was a more efficient alternative, which led me to URL_http://stackoverflow.com/questions/1777309/alternative-to-base64-encoding [this] previous stackoverflow thread that brought up URL_http://en.wikipedia.org/wiki/Ascii85 [Ascii85] encoding as a more efficient alternative - CODETERM5 adds 33% to the size of the output, CODETERM6 adds 25% to the size of the output.. details
  • CODETERM4 encoding increases the size of the output (the gzip step in serialization is meant to help ameliorate this increase), so I checked Google to see if there was a more efficient alternative, which led me to URL_http://stackoverflow.com/questions/1777309/alternative-to-base64-encoding [this] previous stackoverflow thread that brought up URL_http://en.wikipedia.org/wiki/Ascii85 [Ascii85] encoding as a more efficient alternative - CODETERM5 adds 33% to the size of the output, CODETERM6 adds 25% to the size of the output.. details
  • (you can see URL_http://programmerbruce.blogspot.com/2011/05/deserialize-json- with-jackson-into.html [ URL_http://programmerbruce.blogspot.com/2011/05 /deserialize-json-with-jackson-into.html] for examples) which would add property "type" with class name as value (there are many alternative ways as well) when serializing, and using that when deserializing.. details
  • (you can see URL_http://programmerbruce.blogspot.com/2011/05/deserialize-json- with-jackson-into.html [ URL_http://programmerbruce.blogspot.com/2011/05 /deserialize-json-with-jackson-into.html] for examples) which would add property "type" with class name as value (there are many alternative ways as well) when serializing, and using that when deserializing.. details
  • I would like a help to casting...Thanks .. details
  • I have a Message class like this: CODESNIPPET_JAVA1 .. details
  • I would like a help to casting...Thanks .. details
  • I would like a help to casting...Thanks .. details
  • I would like a help to casting...Thanks .. details
  • I want to serialise generic collections with Jackson in compact way, such that in output i will get json that looks like {genericType : [ {field1:1},{field1:25} ]} Example: I have a PoJo that looks like CODESNIPPET_JAVA1 .. details
  • My aim is to get something like CODESNIPPET_JAVA3 .. details
  • Now when i serialize the object i'm getting something like CODESNIPPET_JAVA2 .. details
  • Thanks for the fast reply!. details
  • Thanks for the fast reply!. details
  • Thanks EDIT: My attempt at an "object model" CODESNIPPET_JAVA2 .. details
  • I'm not set on using Gson and would be happy for a solution using Jackson or the built in library.. details
  • It has URL_http://docs.jboss.org/resteasy/docs/2.3.5.Final/userg uide/html_single/index.html [superb-docs] and there URL_http://www.mkyong.com/webservices/jax-rs/integrate-jackson-with-resteasy/ [nice-examples-to-be-found] .. details
  • It integrates with Jackson which is IMO the best JSON lib for java.. details
  • It has URL_http://docs.jboss.org/resteasy/docs/2.3.5.Final/userg uide/html_single/index.html [superb-docs] and there URL_http://www.mkyong.com/webservices/jax-rs/integrate-jackson-with-resteasy/ [nice-examples-to-be-found] .. details
  • So what I actually need help with is selecting the value from the key CODETERM1 and then parse its value into an Boolean.. details
  • _This is what the JSON that I'm trying to parse looks like:_ CODESNIPPET_JAVA1 .. details
  • Thanks to ProgrammerBruce for his useful and clear article.. details
  • If you are not tied to jackson you could also try Genson URL_http://code.google.com/p/genson/ [ URL_http://code.google.com/p/genson/ ] .In your case there are two main advantages: you will not loose in performance, it should be easier to implement.. details
  • Then my logcat is URL_http://pastie.org/5170352 [like-this] .. details
  • Then my logcat is URL_http://pastie.org/5170336 [like-this] But if I use this code for same JSON CODESNIPPET_JAVA4 .. details
  • Jackson understands null POJOs just fine.. details
  • By this choice (if feasible, because I have not tested it yet) I would lose semantic value of the CODETERM12 member, and I wouldn't be forced to.. details
  • Is there another way I can resolve the null elements issue?. details
  • By this choice (if feasible, because I have not tested it yet) I would lose semantic value of the CODETERM12 member, and I wouldn't be forced to.. details
  • Is there another way I can resolve the null elements issue?. details
  • Thank you for the immediate reply.. details
  • Thank you for the immediate reply.. details
  • And I attache the module like so: CODESNIPPET_JAVA3 .. details
  • everything debugs correctly however the resulting _myListC_ list has double the amount of objects with even numbers holding the correct objects along with the correct myReferenceObject out of persistence (deserialized correctly using my module) and the odd elements holding empty Pojos, that is an object with null values for all variables.. details
  • Any help would greeatly be appreciated.. details
  • Through debug, It never reaches return null in my custom deserializer, for it works properly each time its executed.. details
  • Any help would greeatly be appreciated.. details
  • everything debugs correctly however the resulting _myListC_ list has double the amount of objects with even numbers holding the correct objects along with the correct myReferenceObject out of persistence (deserialized correctly using my module) and the odd elements holding empty Pojos, that is an object with null values for all variables.. details
  • Thanks!. details
  • Through debug, It never reaches return null in my custom deserializer, for it works properly each time its executed.. details
  • Thanks!. details
  • Now using the CODETERM10 again on that CODETERM11 CODETERM12 with the CODETERM13 type it deserializes correctly.. details
  • I send the batch request** like this.. details
  • My unsatisfying Workaround:** When I tell my CODETERM5 class that CODETERM6 is a CODETERM7 , it works and I get a BatchResult with a CODETERM8 CODETERM9 .. details
  • The solution to this seems to be to annotate each of the POJO's properties individually and that's the point where I said: No thank you, certainly not!. details
  • So like I said the call should be fine, as the resulting JSON is as expected** (see above): CODESNIPPET_JAVA4 .. details
  • It encourages teams to think in Json first, before writing actual code.. details
  • If you're using Jackson (the most popular library there), try URL_https://bitbucket.org/astav/jsontojava/wiki/Home [ URL_https://bitbucket.org/astav/jsontojava/wiki/Home ] Its open source and anyone should be able to contribute.. details
  • It encourages teams to think in Json first, before writing actual code.. details
  • If you're using Jackson (the most popular library there), try URL_https://github.com/astav/JsonToJava/wiki/JsonToJava [ URL_https://github.com/astav/JsonToJava/wiki/JsonToJava ] Its open source and anyone should be able to contribute.. details
  • If you're using Jackson (the most popular library there), try URL_https://github.com/astav/JsonToJava/wiki/JsonToJava [ URL_https://github.com/astav/JsonToJava/wiki/JsonToJava ] Its open source and anyone should be able to contribute.. details
  • Not sure which version of Jackson you are using but in the latest version (1.9.10), the default behavior of JsonGenerator is no pretty print.. details
  • Your CODETERM1 then becomes: {"name":"daniel","info":{"attr":"value","attr2":"value2"}} Note that CODETERM2 is immutable, but can be cast to an CODETERM3 if you wanted to modify your original JSON as well.. details
  • I know it is very easy to use Jackson to convert Map to Json.. details
  • Thanks at advance.. details
  • So simple.. details
  • Once I found that third jar it was happy.. details
  • Thank you though!.. details
  • Once I found that third jar it was happy.. details
  • Thank you though!.. details
  • Now with my view classes I just annotate my fields with which view they belong to like so: CODESNIPPET_JAVA2 .. details
  • For my JSON response this is exteremely easy to do with Jackson.. details
  • Additionally my API needs to support both XML and JSON.. details
  • I can conditionally include fields in my JSON Response by using the feature of JsonViews: URL_http://wiki.fasterxml.com/JacksonJsonViews [ URL_http://wiki.fasterxml.com/JacksonJsonViews ] First you need to create a simple class specifying your views: CODESNIPPET_JAVA1 .. details
  • This works well for JSON but unfortunately the same is currently unsupported for XML.. details
  • This works well for JSON but unfortunately the same is currently unsupported for XML.. details
  • I can conditionally include fields in my JSON Response by using the feature of JsonViews: URL_http://wiki.fasterxml.com/JacksonJsonViews [ URL_http://wiki.fasterxml.com/JacksonJsonViews ] First you need to create a simple class specifying your views: CODESNIPPET_JAVA1 .. details
  • I have tried to test the following code with no success: CODESNIPPET_JAVA1 .. details
  • There are 3rd party library available like Jackson, gson, felxjson.. details
  • Pretty fresh release.. details
  • Or better yet, I'd like to know WHY I shouldn't be doing this, this way?. details
  • Plus, it has a standard "results, message, etc" that we like to pass back in our AJAX requests.. details
  • Thanks!. details
  • Or better yet, I'd like to know WHY I shouldn't be doing this, this way?. details
  • Works like a charm.. details
  • I was hoping that Jackson provides an equivalent of the Hibernate's @Embeddable/@Embedded.. details
  • Found those references: URL_http://stackoverflow.com/questions/12512027/containerrequestfilter-to-validate-jacksons-jsonpropertyrequired-true [ContainerRequestFilter-to-validate-Jackson's-@JsonProperty(required=true)?]. details
  • Any help and insights appreciated.. details
  • I am trying to parse JSON data being sent from UI in my Controller using Spring build Jackson support and this is my code CODESNIPPET_JAVA1 .. details
  • my CODETERM1 class contains simple properties for for CODETERM2 , CODETERM3 etc with a no argument constructor .. details
  • Finally !. details
  • Then you can write your entities like this.. details
  • Here is some code working with Jackson 2.0 Define a custom annotation: CODESNIPPET_JAVA1 .. details
  • This will only read minimum needed to get the single value instance you want.. details
  • And to output, you might want to consider URL_https://github.com/FasterXML /jackson-dataformat-csv [Jackson-CSV-module] : it can write entries using one of CSV variants; and you can redefine separators to whatever you like.. details
  • And to output, you might want to consider URL_https://github.com/FasterXML /jackson-dataformat-csv [Jackson-CSV-module] : it can write entries using one of CSV variants; and you can redefine separators to whatever you like.. details
  • And to output, you might want to consider URL_https://github.com/FasterXML /jackson-dataformat-csv [Jackson-CSV-module] : it can write entries using one of CSV variants; and you can redefine separators to whatever you like.. details
  • I really like Jackson, it's fast and very capable.. details
  • I really like Jackson, it's fast and very capable.. details
  • doesn't have the "data" wrapper but instead looks like CODETERM1 : CODESNIPPET_JAVA2 .. details
  • Something like the following should work (depending on what FacebookItem really is defined as.). details
  • You can have a look at Genson library URL_http://code.google.com/p/genson/ [ URL_http://code.google.com/p/genson/ ] , on the wiki page you will find some examples on how to use it.Since its first release it provides the streaming model and seems to be the fastest after Jackson, see the URL_http://code.google.com/p/genson/wiki/Metrics2 [benchmarks] .. details
  • You can have a look at Genson library URL_http://code.google.com/p/genson/ [ URL_http://code.google.com/p/genson/ ] , on the wiki page you will find some examples on how to use it.Since its first release it provides the streaming model and seems to be the fastest after Jackson, see the URL_http://code.google.com/p/genson/wiki/Metrics2 [benchmarks] .. details
  • JSON parsing with Jackson - values skipped.. details
  • Thanks you!. details
  • Thanks.. details
  • i created a schema for location like this with a ref to Base object.. details
  • On the Jackson user mailing list, Tatu gave the simplest solution (works in 2.0), which I will probably end up using for now.. details
  • Awarding the bounty to jlabedo because the answer is an awesome example of how to extend Jackson using custom annotations.. details
  • So the output would look something like the following.. details
  • Awarding the bounty to jlabedo because the answer is an awesome example of how to extend Jackson using custom annotations.. details
  • Use a library like Gson or Jackson and map the JSON to a Java Object.. details
  • which can be easily converted with any library with something like (with Jackson) CODESNIPPET_JAVA2 .. details
  • Thanks .. details
  • Thanks CODESNIPPET_JAVA2 .. details
  • If there's a better and simpler way to do this, please let me know.. details
  • The open source Java library URL_http://jackson.codehaus.org/ [Jackson] might take some effort to set up, but is capable of pretty printing and has a pretty neat CODETERM1 annotation which supports alphabetic or manually specified output order.. details
  • The open source Java library URL_http://jackson.codehaus.org/ [Jackson] might take some effort to set up, but is capable of pretty printing and has a pretty neat CODETERM1 annotation which supports alphabetic or manually specified output order.. details
  • Probably very simple but couldn't figure it from Jackson's Api.Thanks .. details
  • The output should be like this: CODESNIPPET_JAVA1 .. details
  • URL_http://flexjson.sourceforge.net/ [FlexJson] is also a good library similar to jackson that i have tried.. details
  • Please share which one did you like and why.. details
  • If you update Jackson to 2.0 it is not deprecated: URL_http://fasterxml.github.com/jackson- databind/javadoc/2.0.0/com/fasterxml/jackson/databind/ObjectMapper.html [ URL_http://fasterxml.github.com/jackson - databind/javadoc/2.0.0/com/fasterxml/jackson/databind/ObjectMapper.html] You can see my configuration here (Spring): URL_http://stackoverflow.com/questions/12514285/registrer- mappingjackson2httpmessageconverter-in-spring-3-1-2-with-jaxb-annotati [Registrer-MappingJackson2HttpMessageConverter-in-Spring-3.1.2-with-JAXB- annotations] .. details
  • With Jackson, it's as simple as using an URL_http://jackson.codehaus.org/1.7.9 /javadoc/org/codehaus/jackson/map/ObjectMapper.html [CODETERM1] and creating a POJO to represent your JSON object: CODESNIPPET_JAVA1 .. details
  • With Jackson, it's as simple as using an URL_http://jackson.codehaus.org/1.7.9 /javadoc/org/codehaus/jackson/map/ObjectMapper.html [CODETERM1] and creating a POJO to represent your JSON object: CODESNIPPET_JAVA1 .. details
  • URL_http://jackson.codehaus.org/ [Jackson] is a popular framework for converting between JSON and Java POJOs.. details
  • URL_http://jackson.codehaus.org/ [Jackson] is a popular framework for converting between JSON and Java POJOs.. details
  • Jackson is a very efficient to do JSON Parsing** See this link:** URL_http://jackson.codehaus.org/ [ URL_http://jackson.codehaus.org/ ] Gson is provided by google which is also a good way to handle JSON.. details
  • Jackson is a very efficient to do JSON Parsing** See this link:** URL_http://jackson.codehaus.org/ [ URL_http://jackson.codehaus.org/ ] Gson is provided by google which is also a good way to handle JSON.. details
  • Your answer seems related to their info on how to use the built-in support for TypeReference - I just don't get how to do it.... details
  • Your answer seems related to their info on how to use the built-in support for TypeReference - I just don't get how to do it.... details
  • Please see my edit above for their instructions on how to use generics.. details
  • Please see my edit above for their instructions on how to use generics.. details
  • Or if not possible, I'd like to know if any Java JSON deserialization libraries can do it.. details
  • I'd like to know how one might get the Jackson JSON library to deserialize JSON into an existing object?. details
  • This is not valid JSON, and it is not supported by Jackson; nor is it likely to be supported in future.. details
  • This is not valid JSON, and it is not supported by Jackson; nor is it likely to be supported in future.. details
  • In a Java object, I would expect something like a Map (Javascript function converted to String).. details
  • Thanks!. details
  • Thanks I will try.. details
  • Thanks I will try.. details
  • All suggestions and helps rendered are sincerely appreciated by me, thank you for your time and effort!. details
  • Thanks in advance.. details
  • Something like, changing the format, calculations, etc.. details
  • URL_http://wiki.fasterxml.com/JacksonHowToCustomSerializers [This] is a good start.. details
  • You can make the JSON parse-able pretty easily by using CODETERM2 : CODESNIPPET_JAVA1 .. details
  • URL_http://wiki.fasterxml.com/JacksonHowToCustomSerializers [This] is a good start.. details
  • CODETERM1 is a fine field type for this.. details
  • URL_http://wiki.fasterxml.com/JacksonHowToCustomSerializers [This] is a good start.. details
  • URL_http://wiki.fasterxml.com/JacksonHowToCustomSerializers [This] is a good start.. details
  • Something like, changing the format, calculations, etc.. details
  • Which is YYYY-DD-MM HH:MM am/pm GMT timestamp.. details
  • I am mapping this value to a Date variable in POJO.. details
  • Is Date a good field type for this?. details
  • I have a Date format coming from API like this: CODESNIPPET_JAVA1 .. details
  • Thanks to Eric's comment pointing me to URL_http://programmerbruce.blogspot.co.uk/2011/05/deserialize-json-with- jackson-into.html [programmerbruce] I managed to crack it.. details
  • @BlaiseDoughan Yes, is uses a standard approach to (un)marshall representations but IT IS NOT the standard approach to (un)marshall JSON in Jersey: Jackson is.. details
  • I solved the Problem by using Jackson like in this answer: URL_http://stackoverflow.com/a/9725228/1116842 [ URL_http://stackoverflow.com/a/9725228/1116842 ] CODESNIPPET_JAVA1 .. details
  • The stack trace clearly indicated that a JAXB implementation was being used with the JSON and MOXy supports more JAXB annotations than Jackson does.. details
  • This approach uses the standard 'MessageBodyReader/Writer interfaces to interact with the Jersey client API and clearly demonstrates that you do NOT need to use Jackson to produce & consume standard JSON into Jersey.. details
  • To produce & consume standard JSON into Jersey one have to use Jackson!. details
  • I have a class such as this (greatly simplified): CODESNIPPET_JAVA1 .. details
  • Spring MVC + Jackson JSON Processor works when building w/ Maven, not with Ant.. details
  • Thanks in advance for your help!. details
  • To produce the necessary Ant build file, and the app builds and runs fine, except that the application no longer produces JSON**.. details
  • This might be even easier to use than HTTP client.. details
  • HTTP client from apache is good, also look into jackson which will provide JSON parsing ( URL_https://github.com/FasterXML/jackson-core) .. details
  • This might be even easier to use than HTTP client.. details
  • HTTP client from apache is good, also look into jackson which will provide JSON parsing ( URL_https://github.com/FasterXML/jackson-core) .. details
  • I know about custom CODETERM2 option, but this is only useful, if you need to deserialize given values of array.. details
  • I need to deserialize values of array and array itself.. details
  • I just tried it on a Jersey servlet (which uses Jackson) and it worked fine.. details
  • @MLL - Sounds good to me!. details
  • @MLL - Sounds good to me!. details
  • Thanks for the interesting post.. details
  • I'm building an android app that saves info on incoming/outgoing calls in a CODETERM1 class, incoming/outgoing SMSes in an CODETERM2 class, and bytes sent/received via a CODETERM3 class.. details
  • I made them all implement a CODETERM4 interface so I can create a single CODETERM5 of CODETERM6 s, hoping that it will be easily convertible to a JSON array of different objects via Jackson.. details
  • Jackson does not truncate double values, beyond the usual caveats with binary floating point notations (i.e.. details
  • So it would be useful to see definition of CODETERM2 .. details
  • I've confirmed that the CustomObjectMapper implementation is writing the correct format by simply writing a test object to a file after this.setSerializationConfig(serialConfig); and it's working fine, though this instance doesn't appear to be used by the declaration.. details
  • This appears to be exactly what I'm after, though either it doesn't appear to be working for me or for some other reason Spring is choosing a different MappingJacksonHttpMessageConverter instance than that of which I've created.. details
  • I have not worked with JackSon, but can you somehow try something like this.... CODESNIPPET_JAVA1 .. details
  • Thanks everyone :) The _theClass_ is just a class that holds all these variables.. details
  • This should be a simple issue but I just couldn't find anything on the Internet.Here is the JSON string CODESNIPPET_JAVA1 .. details
  • Please have a look at URL_http://ja ckson.codehaus.org/1.5.7/javadoc/org/codehaus/jackson/map/annotate/JsonDeseria lize.html [Jackson-Documentation] for more details .. details
  • Thank you.. details
  • Also worth mentioning I am using Jackson 1.9.2 and Jersey 1.13 .. details
  • svc.save(...) will save the bean and the embedded objects**.. details
  • For security reasons I want to filter out some of the properties that can be updated by the JSON string, but I want to do this dynamically, so that for every WS (or user Role) I can decide which properties to prevent to be updated (so I can't simply use the Jackson Views) To summarize, is there any way I can dynamically filter out properties during JSON Deserialization?. details
  • .. CODETERM3 is 1.399999976158142 If I'm only using writeValueAsString, the result is correct.. details
  • To prevent all the object creation, look at event driven xml and json handling like URL_http://www.saxproject.org/ [SAX] for XML and URL_http://code.google.com/p/json-simple/ [Json-Simple] and/or URL_http://jackson.codehaus.org/ [Jackson] for JSON.. details
  • To prevent all the object creation, look at event driven xml and json handling like URL_http://www.saxproject.org/ [SAX] for XML and URL_http://code.google.com/p/json-simple/ [Json-Simple] and/or URL_http://jackson.codehaus.org/ [Jackson] for JSON.. details
  • Thanks, bc .. details
  • What would the java code need to look like to deserialize this?. details
  • I resolved this same issue by actually defining getters (I expected it to find attributes via reflection).. details
  • I resolved this same issue by actually defining getters (I expected it to find attributes via reflection).. details
  • This sounds like a classpath issue: that is, Jackson code can not find named class with its classloader.. details
  • This sounds like a classpath issue: that is, Jackson code can not find named class with its classloader.. details
  • If possible, maybe you could see where jars for Jackson and value class come from, and see if that would explain it.. details
  • When I serialize and deserialize my classes using standalone main program, it works perfectly fine.. details
  • Any help is greatly appreciated.. details
  • Use a custom CODETERM1 and annotate the CODETERM2 field with CODETERM3 IMHO the static factory method is the cleaner way.. details
  • All the information Jackson as is a simple String, and your class provide no way of creating it with only a string.. details
  • Since you have non-primitive type as a map key ( CODETERM1 ) you'll need to write your own custom deserializer as described in URL_http://wiki.fasterxml.com/JacksonHowToCustomDeserializers [Jackson-wiki] , because Jackson can't simply convert string value CODETERM2 (which seems to be a result of CODETERM3 ) into CODETERM4 instance.. details
  • Since you have non-primitive type as a map key ( CODETERM1 ) you'll need to write your own custom deserializer as described in URL_http://wiki.fasterxml.com/JacksonHowToCustomDeserializers [Jackson-wiki] , because Jackson can't simply convert string value CODETERM2 (which seems to be a result of CODETERM3 ) into CODETERM4 instance.. details
  • Thank you.. details
  • This is my firs titme dealing with Type Maps and everytime i try to map the node to my Actual Type Object which has a custom property key as FooType with a CODETERM1 values.. details
  • Here is how my Object looks like CODESNIPPET_JAVA1 .. details
  • It is fast, small footprint, documented, overused, and many others things you will enjoy!. details
  • It is fast, small footprint, documented, overused, and many others things you will enjoy!. details
  • Jackson allows you to read from a JSON string, so read the pretty-printed string back into Jackson and then output it again with pretty-print disabled.. details
  • The URL_http://wiki.fasterxml.com/JacksonStreamingApi [Streaming-API] is probably your friend here.. details
  • The URL_http://wiki.fasterxml.com/JacksonStreamingApi [Streaming-API] is probably your friend here.. details
  • The safe way is to read the data using the URL_http://wiki.fasterxml.com/Jacks onInFiveMinutes#A.22Raw.22_Data_Binding_Example ["Raw"-data-binding] and just write it out again without enabling the pretty printer.. details
  • I tried to remove '\n', '\t', and ' ' characters; but there may be some of these characters in values so I can't do that.. details
  • URL_http://stackoverflow.com/questions/6176881/how-do-i-make-jackson-pretty- print-the-json-content-it-generates [How-do-I-make-Jackson-pretty-print-the- JSON-content-it-generates?]. details
  • Please switch to Jackson or Gson.. details
  • Some pull parser like GSON oder jackson would suit your task better (jackson claims to be faster, but also heavier jars and more dependencies - I prefer GSON) You may also consider simple databinding library: URL_https://github.com/ko5tik/jsonserializer [ URL_https://github.com/ko5tik/jsonserializer ] ( jars available from maven central ) With it parsing of JSON becomes looks this way: URL_https://github.com/ko5tik/accmeter/blob/master/src/main/java/de/pribluda/a ndroid/accmeter/file/SampleReader.java [ URL_https://github.com/ko5tik/accmeter/blo b/master/src/main/java/de/pribluda/android/accmeter/file/SampleReader.java] ( just provide java.io.Reader and class to fill fields in ) .. details
  • The added bonus with using the annotation is that you get deserialization for free, if you ever need it.. details
  • The added bonus with using the annotation is that you get deserialization for free, if you ever need it.. details
  • Now my code looks like this: CODESNIPPET_JAVA2 .. details
  • I still want to do it without creating these two objects ( Person and Dog ) - That'a good enough for now - but if someone have an idea - I would like to here!. details
  • Thanks.. details
  • Here, I would like the field "data" to be serialized to something like data.getClass.getName() instead of always having a field called "data" which contains a different type depending on the situation.. details
  • Jackson dynamic property names.. details
  • (i.e., the Map in ServiceResponse would look like CODETERM1 ).. details
  • I'd like detail1, detail2 to create Detail classes, and otherObject to create an OtherObject class.. details
  • Appreciate any help.. details
  • The example Json is something like this: CODESNIPPET_JAVA1 .. details
  • Currently, I've set up my classes as follows (this is the structure I would prefer): CODESNIPPET_JAVA2 .. details
  • :-) .. details
  • I had standard and advanced use of Jackson, and it was nice until I needed features that Jackson didn't provide.. details
  • Its performances were not good (especially compared to Jackson or Genson).With the latest versions it has improved as they also provide a streaming api, but its still not fast enough.. details
  • If you don't want to use Genson, I really recommend you Jackson over Gson.. details
  • Actually Genson is faster and has more features than Gson and has performances close to jackson (but its a lot more lightweight) see URL_http://code.google.com/p/genson/wiki/Metrics [ URL_http://code.google.com/p/genson/wiki/Metrics ] .. details
  • Jackson has also a lot of features and configuration possibilities (most based on annotations).. details
  • At the begining its main advantage was good support of Java generics but Jackson and Genson provide it too.. details
  • Its performances were not good (especially compared to Jackson or Genson).With the latest versions it has improved as they also provide a streaming api, but its still not fast enough.. details
  • Actually Genson is faster and has more features than Gson and has performances close to jackson (but its a lot more lightweight) see URL_http://code.google.com/p/genson/wiki/Metrics [ URL_http://code.google.com/p/genson/wiki/Metrics ] .. details
  • As far as I can tell, JsonDeserializer/JsonSerializer has no contextual information on the parent so there doesn't seem to be an easy way to create a @JsonValueFromProperty("id") type Jackson Mix-in then just look at that annotation in the custom Serializer/Deserializer.. details
  • Thanks!. details
  • I would like Order to serialize as either (either would be perfectly acceptable to me): CODESNIPPET_JAVA2 .. details
  • Any ideas would be greatly appreciated.. details
  • Using Jackson 2, I'm looking for a generic way to be serialize objects as a single value (then serialize them back later populating only that single field) without having to repetitively create a JsonSerializer / JsonDeserializer to handle each case.. details
  • Jackson - serialize/deserialize property as JSON value.. details
  • @JsonIgnoreProperties could also come pretty close for the second JSON shown but would mean I would have to opt-out of everything but the one I want.. details
  • Jackson was absolutely insisting on finding an CODETERM6 property and I could not get it to consider anything else.. details
  • So to proceed I needed a custom type resolver.. details
  • At this stage, I might have been able to use CODETERM8 , except for the issue with the CODETERM9 payload mentioned above (this is used to indicate that the child object has no properties - if the spec I was working from had given an empty object {} instead then there would not be a problem).. details
  • Note that age=25 is encoded as a number while favoriteNumber=123 is encoded as a string**.. details
  • For example, I'd like to have the class CODESNIPPET_JAVA1 .. details
  • In this case I want favoriteNumber to be encoded as a string.. details
  • See [this entry in Jackson]( URL_http://wiki.fasterxml.com/SimpleModule ) You need to create a simple module for that SimpleModule isoDateTimeModule new SimpleModule("ISODateTimeModule", new Version(1, 0, 0, null)); isoDateTimeModule.addSerializer(new JsonISODateTimeFormatSerializer()); mapper.registerModule(isoDateTimeModule);.. details
  • See [this entry in Jackson]( URL_http://wiki.fasterxml.com/SimpleModule ) You need to create a simple module for that SimpleModule isoDateTimeModule new SimpleModule("ISODateTimeModule", new Version(1, 0, 0, null)); isoDateTimeModule.addSerializer(new JsonISODateTimeFormatSerializer()); mapper.registerModule(isoDateTimeModule);.. details
  • I scannned rather large Jackson wiki and did not found anything that allowedto accomplish this without writing plethora of custom code.I think this is pretty common task and solution shold be somewhere nearby.. details
  • I scannned rather large Jackson wiki and did not found anything that allowedto accomplish this without writing plethora of custom code.I think this is pretty common task and solution shold be somewhere nearby.. details
  • I'd like to serialize it to following json: CODESNIPPET_JAVA2 .. details
  • Also it would be nice if solution will allow to customize null value cases.. details
  • I'll check this out !. details
  • Thanks for sharing.. details
  • Please see URL_http://wiki.fasterxml.com/JacksonPolymorphicDeserialization [here] for more information .. details
  • Please see URL_http://wiki.fasterxml.com/JacksonPolymorphicDeserialization [here] for more information .. details
  • In my resource I can declare a method like: CODESNIPPET_JAVA2 .. details
  • So far so good.. details
  • So I annotated the classes like this: CODESNIPPET_JAVA3 .. details
  • Then I can POST an XML fragment that looks like CODETERM1 and my method will be invoked with a CODETERM2 instance.. details
  • For what it is worth, this has been fixed for Jackson 2.0.0, so that @JsonValue should finally work for all types (including Map and Collection types).. details
  • For what it is worth, this has been fixed for Jackson 2.0.0, so that @JsonValue should finally work for all types (including Map and Collection types).. details
  • Right, this is correct assumption at high-level.. details
  • Yeah, I haven't looked at the code, but my assumption is that the @JsonValue check only happens once Jackson has decided that the class is bean-like, and not collection-like.. details
  • This is difference between Jackson 1.x and Jackson 2.0.. details
  • Hibernate 4 module is only available for Jackson 2.0 (Hibernate 3 versions were available for both 1.x and 2.0).. details
  • Hibernate 4 module is only available for Jackson 2.0 (Hibernate 3 versions were available for both 1.x and 2.0).. details
  • I'd prefer URL_http://jackson.codehaus.org/ [Jackson] , which has some performance URL_http://stackoverflow.com/questions/338586/a-better-java-json- library [advantages] .. details
  • I'd prefer URL_http://jackson.codehaus.org/ [Jackson] , which has some performance URL_http://stackoverflow.com/questions/338586/a-better-java-json- library [advantages] .. details
  • I would strongly recommend the Jackson library: URL_http://wiki.fasterxml.com/JacksonHome [ URL_http://wiki.fasterxml.com/JacksonHome ] It won't get much simpler anyway, you have node-objects etc, it's easy to use.. details
  • I would strongly recommend the Jackson library: URL_http://wiki.fasterxml.com/JacksonHome [ URL_http://wiki.fasterxml.com/JacksonHome ] It won't get much simpler anyway, you have node-objects etc, it's easy to use.. details
  • thanks .. details
  • Some examplecode about how to do this will be appreciated.. details
  • For example, a "getter" method that would otherwise denote a property (like, say, "getValue" to suggest property "value") to serialize, would be ignored and no such property would be output unless another annotation defines alternative method to use.. details
  • For example, a "getter" method that would otherwise denote a property (like, say, "getValue" to suggest property "value") to serialize, would be ignored and no such property would be output unless another annotation defines alternative method to use.. details
  • This _almost_ gives me what I want: the JSON contains the "password" field, but the value is always null.. details
  • your suggestion was helpful and i updated my question with my solution details.. details
  • I have also not tested this code but you should get a very good idea of what I'm suggesting.. details
  • I'm not sure the format you want the json to be in but you should really use a library like jackson (has serializers/mappers that help).. details
  • I have also not tested this code but you should get a very good idea of what I'm suggesting.. details
  • NOTE: to keep code brief, I don't use best practices of java (e.g.. details
  • I think the copy and paste is fine if you are describing a solution that is applicable.. details
  • How to prevent Jackson from outputting pretty print JSON?. details
  • I can confirm there are 0 references to .defaultPrettyPrintingWriter() in the project, as well as 0 references to .setSerializationConfig, which I believe may also be used to enable pretty print.. details
  • I'm a junior working on a pre-existing project, so I need to work backwards to find out all the ways that JSON can be configured to output as pretty print.. details
  • But perhaps mix-ins are not the best way to do this: have you considered using URL_http://wiki.fasterxml.com/JacksonJsonViews [JSON-Views] instead?. details
  • But perhaps mix-ins are not the best way to do this: have you considered using URL_http://wiki.fasterxml.com/JacksonJsonViews [JSON-Views] instead?. details
  • But perhaps mix-ins are not the best way to do this: have you considered using URL_http://wiki.fasterxml.com/JacksonJsonViews [JSON-Views] instead?. details
  • But perhaps mix-ins are not the best way to do this: have you considered using URL_http://wiki.fasterxml.com/JacksonJsonViews [JSON-Views] instead?. details
  • edit if i introduce the private fields "type" (Parent) and "exportEnabled" (AbstractChild) so it runs correctly.. details
  • But I need this attribute!. details
  • I would like serialize an Bean, containing the list of other beans, as string , save this string and then to deserialize later this string.. details
  • Please help me.. details
  • As of right now, I've got it configured and working for my classes, except for a 3rd party class.. details
  • So my question is, is there anything I can do about this or am I just out of luck?. details
  • Thanks.. details
  • Thanks for the reply.. details
  • My first inclination was to use a Mixin to tweak if the attribute is shown, but it seems that you can only put those on the ObjectMapper and not on a reader returned by the ObjectMapper.. details
  • Basically the code I would like to be able to write would look like the following.. details
  • Thanks, Danny .. details
  • Given the popularity of facebook, I was hoping to find some jars/lib that can do this already.. details
  • Thanks much.. details
  • Recommendations with examples are most welcome.. details
  • Correct.. details
  • Cool, no problem!. details
  • If so then there are two things to consider: The first is using a special Jackson config property.. details
  • Assuming that you have correct CODETERM9 , CODETERM10 object, you can define: CODESNIPPET_JAVA3 .. details
  • Assuming that you have correct CODETERM9 , CODETERM10 object, you can define: CODESNIPPET_JAVA3 .. details
  • I am having a question with Jackson that I think should be simple to solve, but it is killing me.. details
  • I could obviously make a UserWrapper class that has a single User object and then deserialize using that but I know there must be a more elegant solution.. details
  • And I want to deserialize JSON that looks like this into a User object: CODESNIPPET_JAVA2 .. details
  • Json-path could be a very good alternative for such a requirement - if you are okay with a solution other than Jackson that is: URL_http://code.google.com/p /json-path/ [ URL_http://code.google.com/p/json-path/ ] .. details
  • I think that the easiest way to do this is using the Jackson URL_http://wiki.fasterxml.com/JacksonTreeModel [TreeModel] : let Jackson parse the JSON input into a URL_http://jackson.codehaus.org/1.3.4/javadoc/org/codeha us/jackson/JsonNode.html [CODETERM1] object that you then query, assuming some knowledge of the data structure.. details
  • I think that the easiest way to do this is using the Jackson URL_http://wiki.fasterxml.com/JacksonTreeModel [TreeModel] : let Jackson parse the JSON input into a URL_http://jackson.codehaus.org/1.3.4/javadoc/org/codeha us/jackson/JsonNode.html [CODETERM1] object that you then query, assuming some knowledge of the data structure.. details
  • I think that the easiest way to do this is using the Jackson URL_http://wiki.fasterxml.com/JacksonTreeModel [TreeModel] : let Jackson parse the JSON input into a URL_http://jackson.codehaus.org/1.3.4/javadoc/org/codeha us/jackson/JsonNode.html [CODETERM1] object that you then query, assuming some knowledge of the data structure.. details
  • I am posting the question correctly here .... details
  • Since version 1.5 Jackson supports Polymorphic Type Handling, check here URL_http://www.cowtowncoder.com/blog/archives/2010/03/entry_372.html [ URL_http://www.cowtowncoder.com/blog/archives/2010/03/entry_372.html ] there are examples on how to correctly handle deserialization in those cases.. details
  • Now, I wish to use this method dynamically (i.e.. details
  • In summary, I need some way to first define a class literal from a String, and then cast the resulting Object into the specific class (but my focus is on getting CODETERM1 to work dynamically).. details
  • As to Jackson 2.0: I would definitely try it over 1.9 because some parts of CODETERM3 handling have been improved; and any fixes/improvements will be added there.. details
  • Jackson, and similar Java-to/from-JSON tools, don't even need a getter to set/modify a field value.. details
  • As Thomas suggested, Jackson can use reflection to set field values.. details
  • The field to be set/modified could even be private and final (with a value already specified -- Jackson won't necessarily respect the immutability of a field).. details
  • Instead of modifying the CODETERM2 method to return a JSON-friendly representation of the map key, it's also possible and reasonably simple to implement custom map key serialization with Jackson.. details
  • Costi correctly described the behavior of the default map key serializer of Jackson, which just calls the CODETERM1 method of the Java map key.. details
  • If you really don't want to provide such (extra) constructors, then it would be nice if a similar solution could be devised using URL_http://www.cowtowncoder.com/blog/archives/2011/07/entry_457.html [CODETERM2] , but I wasn't able to get such a thing to work.. details
  • So, I recommend logging an enhancement request at URL_https://github.com/FasterXML/jackson- core/issues [ URL_https://github.com/FasterXML/jackson-core/issues ] , maybe to better support annotating a CODETERM3 argument with both CODETERM4 and CODETERM5 .. details
  • If you really don't want to provide such (extra) constructors, then it would be nice if a similar solution could be devised using URL_http://www.cowtowncoder.com/blog/archives/2011/07/entry_457.html [CODETERM2] , but I wasn't able to get such a thing to work.. details
  • So, I recommend logging an enhancement request at URL_https://github.com/FasterXML/jackson- core/issues [ URL_https://github.com/FasterXML/jackson-core/issues ] , maybe to better support annotating a CODETERM3 argument with both CODETERM4 and CODETERM5 .. details
  • So, a simple approach would be to just provide no-argument (private) constructors for Jackson to use.. details
  • So, I recommend logging an enhancement request at URL_https://github.com/FasterXML/jackson- core/issues [ URL_https://github.com/FasterXML/jackson-core/issues ] , maybe to better support annotating a CODETERM3 argument with both CODETERM4 and CODETERM5 .. details
  • So, I recommend logging an enhancement request at URL_https://github.com/FasterXML/jackson- core/issues [ URL_https://github.com/FasterXML/jackson-core/issues ] , maybe to better support annotating a CODETERM3 argument with both CODETERM4 and CODETERM5 .. details
  • Note that Jackson's deserialization processing doesn't necessarily respect the immutability of CODETERM1 fields.. details
  • My situation is pretty much the following: CODESNIPPET_JAVA1 .. details
  • Thanks in advance.. details
  • The very same method obviously works with class 'B' which inherits from 'Foo'.. details
  • I'm using it only since a couple of weeks, and I find it very flexible and time-saving when it's about serializing and deserializing objects in Java.. details
  • And the JSON to deserialize is something like this: CODESNIPPET_JAVA2 .. details
  • It would also work with a non-immutable class by using separate setters, but I'd like to know if there's a way to do the same by only using the constructors (or a builder, which would make sense as in reality the fields are much more than the one in the example).. details
  • ObjectMapper mapper new ObjectMapper();mapper.configure(DeserializationFeatu re.ACCEPT_SINGLE_VALUE_AS_ARRAY, true); For more info : URL_http://fasterxml.github.com/jackson-databind/javadoc/2.0.0 /com/fasterxml/jackson/databind/DeserializationFeature.html#ACCEPT_SINGLE_VALU E_AS_ARRAY [ URL_http://fasterxml.github.com/jackson-databind/javadoc/2.0.0/com/fas terxml/jackson/databind/DeserializationFeature.html#ACCEPT_SINGLE_VALUE_AS_ARR AY] .. details
  • It is easier to see in an example: CODESNIPPET_JAVA1 .. details
  • I ran into a problem when reading the JSON and attempting to turn it into a JAVA object it successfully changes JSON into multiple objects.. details
  • Your help is appreciated!. details
  • So I would prefer the solution with tuned Jackson.. details
  • For more detailed information: URL_http://wiki.fasterxml.com/JacksonFAQ [ URL_http://wiki.fasterxml.com/JacksonFAQ ] .. details
  • For more detailed information: URL_http://wiki.fasterxml.com/JacksonFAQ [ URL_http://wiki.fasterxml.com/JacksonFAQ ] .. details
  • This sometimes required addition of "extra" annotations, like annotating both getter and setter.. details
  • In addition to existing good answers, note that Jackson 1.9 improved handling by adding "property unification", meaning that ALL annotations from difference parts of a logical property are combined, using (hopefully) intuitive precedence.. details
  • Annotate the classes with @XmlRootElement at least, so Jackson can find them Annotate the methods with @Produces and @Consumes setting them to JSON The following code works fine (I changed the format to XML for convenience, it should be the same in JSON): TestServlet: CODESNIPPET_JAVA1 .. details
  • Thanks for reference beerbajay.. details
  • Thanks for reference beerbajay.. details
  • Thanks.. details
  • I am using Jackson for converting huge and complex Java object to JSON, it is working fine but is there any chances that issue could occur because of the large size of the object, if so we can try to handle and resolve it beforehand as it is critical to our project.. details
  • I am using Jackson for converting huge and complex Java object to JSON, it is working fine but is there any chances that issue could occur because of the large size of the object, if so we can try to handle and resolve it beforehand as it is critical to our project.. details
  • Both CODETERM1 field, and method CODETERM2 , have the correct property name of CODETERM3 and CODETERM4 has a different one CODETERM5 , in this case Jackson will look for a CODETERM6 attribute in json at the point of deserialization and will create a attribute called CODETERM7 at the point of serialization.. details
  • Now for another tool, I need to annotate the field with JsonProperty as well.. details
  • You can probably type the map values as CODETERM1 as well if you are sure the inputs are text in json.. details
  • You can probably type the map values as CODETERM1 as well if you are sure the inputs are text in json.. details
  • Or, you can let Jackson deserialize it as a Map, in which case you'd use your code but where MyClass would be like this: CODESNIPPET_JAVA2 .. details
  • Ideally I need some way for Jackson to map values to something like a URL_http://docs.or acle.com/javase/1.5.0/docs/api/org/omg/DynamicAny/NameValuePair.html [NameValuePair] .. details
  • So far I haven't had any problems, and can parse files fine using the following code: CODESNIPPET_JAVA1 .. details
  • Ie, for this example, it could look like: CODESNIPPET_JAVA3 .. details
  • As such, I'm not sure what the associated Java class should look like.. details
  • Ideally I need some way for Jackson to map values to something like a URL_http://docs.or acle.com/javase/1.5.0/docs/api/org/omg/DynamicAny/NameValuePair.html [NameValuePair] .. details
  • Support for Jackson 2 has been added in Spring 3.2, and has also backported to Spring 3.1.2 ( URL_https://jira.springsource.org/browse/SPR-9507 [SPR-9507] ) .. details
  • True, jackson will write: "property": null, but the value won't be deserialized.. details
  • True, jackson will write: "property": null, but the value won't be deserialized.. details
  • If it's reasonable to alter the original CODETERM1 data structure to be serialized to better represent the actual value wanted to be serialized, that's probably a decent approach, which would possibly reduce the amount of Jackson configuration necessary.. details
  • A simple approach to serialize CODETERM9 keys as empty strings (including complete examples of the two previously mentioned configurations): CODESNIPPET_JAVA4 .. details
  • To handle null CODETERM8 keys, some custom serialization is necessary, as best I understand.. details
  • How to prevent null values inside a Map and null fields inside a bean from getting serialized through Jackson.. details
  • What is the best way to achieve this ?. details
  • The Map can have have plenty of null values and null keys and I don't want nulls to be serialized.. details
  • How to prevent null values inside a Map and null fields inside a bean from getting serialized through Jackson.. details
  • The Map can have have plenty of null values and null keys and I don't want nulls to be serialized.. details
  • Now, I also like to generate JSON files after this line.. details
  • Does anyone know of a good solution?. details
  • I'd return a HTTP code of 400 to every client who tries to PUT me a resource representation like this :).. details
  • I'd return a HTTP code of 400 to every client who tries to PUT me a resource representation like this :).. details
  • Can I create one class, annotate it with JAXB annotations(for XML support) and declare in web.xml for JSON (Jackson library) support?. details
  • Thanks.. details
  • Or may be exist some more elegant way to cause REST service to return both JSON and XML?. details
  • for JSON (Jackson library) support?. details
  • I've searched a lot and the best way I've found so far is on URL_http ://sghill-dev.blogspot.it/2012/04/how-do-i-write-jackson-json-serializer.html [this-article] : Class to serialize** CODESNIPPET_JAVA1 .. details
  • I've searched a lot and the best way I've found so far is on URL_http ://sghill-dev.blogspot.it/2012/04/how-do-i-write-jackson-json-serializer.html [this-article] : Class to serialize** CODESNIPPET_JAVA1 .. details
  • Thanks .. details
  • thanks for any pieces of advice json looks in a such way: CODESNIPPET_JAVA3 .. details
  • try this:JsonParser parser new JsonParser();JsonObject jsonObject=parser.parse("your string").getAsJsonObject(); also if it is a jsonArray ,change getAsJsonObject to getAsJsonArray also jackson offers an easy to to parser string to jsonyou can search jackson apache .. details
  • The current Message POJO does not have a _field_ named success, but it does define a _property_ named success, which is why Jackson is happy to map the example JSON to it without any additional configurations.. details
  • If that's the case, then you can do so, and Jackson will still (de)serialize from/to the Message POJO with the same example JSON without any other configurations necessary, because the isSuccess and setSuccess method signatures already adequately define that Message has a property named success, which matches the element name in the JSON.. details
  • If you can't get it to work with Jackson, below is how you can support this use case with MOXy.. details
  • Is it possible to deserialize this JSON into a class without field _success_?So far, i've always got the "UnrecognizedPropertyException: Unrecognized field "success"" Thanks for your help!. details
  • To be clear, Spring 3.1 doesn't have native support for Jackson 2.. details
  • That's it!. details
  • :D Hope this will help someone else to waste less time!. details
  • In this way when I'm using the REST service Jersey will use the ObjectMapper defined in the Provider; when storing the stuff Jackson will use the standard ObjectMapper.. details
  • and through the REST API you can get the username without the password (thanks to the JsonIgnore) .. details
  • Is there an annotation I can put on the "id" property to cause Jackson to treat it as a key, with the rest of the object as the associated value?. details
  • check this: URL_http://stackoverflow.com/questions/2255220/how-to-parse-a-json - and-turn-its-values-into-an-array.. details
  • And you will see, that you won't get value of CODETERM3 in converted model.. details
  • Thanks!. details
  • looks like it work... thanks.. details
  • looks like it work... thanks.. details
  • looks like it work... thanks.. details
  • looks like it work... thanks.. details
  • Thanks - what if the parameters are not key value parirs ?. details
  • Thanks - what if the parameters are not key value parirs ?. details
  • So my question was, if I can make Jackson knowing about this.Perhaps by simply adding a dummy value for shifting the ordinal by one.. details
  • Its clear, that 0 means Status.Active in the java world!. details
  • Create simple JSON structure using jackson.. details
  • I think I need to create a class like this : CODESNIPPET_JAVA2 .. details
  • I would recommend to use Jackson.You can also take a look at the JSonObjectSerializer class based on Jackson which can be found at URL_http://www.ovirt.org [oVirt] under engine/backend/manager/module/utils (you can git clone the code) and see how we used Jackson there.. details
  • I've been able to do other simple conversions using the CODETERM1 annotation on the getter.. details
  • How can I serialize a property which is a Map as a List of the Map's values?. details
  • The object being serialized and de-serialized contains some standard objects that are stored in MySql.. details
  • Thanks in advance.. details
  • // cheers SOLUTION: Using JsonNote.isArray(): CODESNIPPET_JAVA1 .. details
  • I have tried the below method and it works for such JSON format reading with Jackson.Use the already suggested solution of: annotating getter with CODETERM1 Your wrapper class CODESNIPPET_JAVA1 .. details
  • Thanks in advance!. details
  • What I would like to do is to format the JSON into a more user friendly format.. details
  • What I would like to do is to format the JSON into a more user friendly format.. details
  • Jackson is awesome for this because its incredibly easy to use and, apparently performs decently (see URL_http://code.google.com/p/thrift-protobuf- compare/wiki/Benchmarking [here] ), however the only problem I seem to be having with it is when I run CODETERM1 it writes all of the data in the CODETERM2 to one line.. details
  • For example, if I pass a simple json tree to it, it will write the following: CODESNIPPET_JAVA1 .. details
  • EDIT: Specifically for Jackson, your example looks a lot like the example they give for what they call Full Data Binding, you can read it URL_http://wiki.fas terxml.com/JacksonInFiveMinutes#Full_Data_Binding_.28POJO.29_Example [here] .. details
  • URL_http://jackson.codehaus.org/ [jackson] is also pretty fast and easy to use .. details
  • URL_http://jackson.codehaus.org/ [jackson] is also pretty fast and easy to use .. details
  • URL_http://jackson.codehaus.org/ [jackson] is also pretty fast and easy to use .. details
  • URL_http://jackson.codehaus.org/ [jackson] is also pretty fast and easy to use .. details
  • I have created an object, let's call it a Profile, that successfully parses single JSON objects via an API that I call.. details
  • For completeness, my code for the multi object parse looks like this: CODESNIPPET_JAVA1 .. details
  • But for me this is very clear way of mapping JSON to objects.. details
  • Thanks!. details
  • All the other properties are mapped correct, but not the list containing hits.. details
  • I have ganerated POJOs for the whole hiearchy where the products class looks like: CODESNIPPET_JAVA3 .. details
  • Any one ever try something like this?. details
  • Like Oscar says, enumeration (and computer science in general) is 0-based.. details
  • I am trying to start working with jackson for serializing objects having Joda CODETERM1 members.. details
  • My test code looks like this: CODESNIPPET_JAVA1 .. details
  • I was basing that on this quote from the Javadoc: When used for properties (fields, methods), this annotation applies to values: so when applied to structure types (like Collection, Map, arrays), will apply to contained values, not the container; for non-structured types there is no difference.. details
  • I was basing that on this quote from the Javadoc: When used for properties (fields, methods), this annotation applies to values: so when applied to structure types (like Collection, Map, arrays), will apply to contained values, not the container; for non-structured types there is no difference.. details
  • Another possibility is sub-classing CODETERM5 : you can change the handling of CODETERM6 there as well; just see what CODETERM7 does, override behavior as applicable.. details
  • What's the best way to do that?. details
  • If you want the android app to receive JSON data, I'd recommend looking into Jackson: URL_http://jackson.codehaus.org/ [ URL_http://jackson.codehaus.org/ ] This library will parse java objects and return them as JSON strings, quite nice.. details
  • If you want the android app to receive JSON data, I'd recommend looking into Jackson: URL_http://jackson.codehaus.org/ [ URL_http://jackson.codehaus.org/ ] This library will parse java objects and return them as JSON strings, quite nice.. details
  • Any help very gratefully received!. details
  • ( URL_https://groups.google.com/d/topic/google-appengine- java/uImBt6fOhww/discussion%20original [original] ) I have put together a simple json REST service using jersey, jaxb and jackson.. details
  • and the relevant resource signature looks like this: CODESNIPPET_JAVA2 .. details
  • However, all subsequent requests after this work fine, the class then seems to have been loaded.. details
  • Since you are using Jackson 1.x and not Jackson 2.x, you could use MixIns.. details
  • However, you can't do that with Jackson 2.x: mixIns are shared by the serialization and deserialization config.. details
  • This special syntax has been invented by Microsoft to make those Date literals distinguishable from normal strings, but still deliver valid JSON.. details
  • This special syntax has been invented by Microsoft to make those Date literals distinguishable from normal strings, but still deliver valid JSON.. details
  • Use a library like URL_http://jackson.codehaus.org/ [Jackson] that's already figured out how to do this for you.. details
  • Use a library like URL_http://jackson.codehaus.org/ [Jackson] that's already figured out how to do this for you.. details
  • URL_http://svn.codehaus.org/jackson/trunk/src/test/org/codehaus/jackson/map/de ser/TestCollectionDeserialization.java [TestCollectionDeserialization] contains some examples of the readValue method when working with collections and may be helpful.. details
  • URL_http://svn.codehaus.org/jackson/trunk/src/test/org/codehaus/jackson/map/de ser/TestCollectionDeserialization.java [TestCollectionDeserialization] contains some examples of the readValue method when working with collections and may be helpful.. details
  • Is there any way we can use something like the @XMLElementWrapper in Jackson?. details
  • So a wrapper class like: CODESNIPPET_JAVA2 .. details
  • Very cool additional piece -- thanks for sharing.. details
  • Very cool additional piece -- thanks for sharing.. details
  • Seems like a nice companion for Jackson data-binding!.. details
  • But if I return a simple String, the result is not really what I expected.. details
  • You are right, that resolves it, if use a getter method with the correct type (irrespective of its name).. details
  • Thanks!.. details
  • Even more cool is that you can tell Jackson to deserialize it as the exact Map type you want via the @JsonDeserialize annotation, e.g.. details
  • In such case, your best bet is to use return type of CODETERM1 , since the issue is not with Jackson -- whose job is to produce JSON out of Objects, not pass Strings as is -- but with JAX-RS which is not to call Jackson.. details
  • For what it is worth, there is actually CODETERM4 method as well, which allows embedding literal text in CODETERM5 , but JAX-RS implementations use CODETERM6 , not low-level abstractions.. details
  • We have a whole set of JAX-RS REST services running on top of Apache CXF and Jackson.We use JAXB annotations to take care of marshalling POJOs to JSON, works great.. details
  • I've tried multiple things, adding RawSerializer(String.class) to the Object mapper, nothing works.. details
  • currentParser.getCurrentName() is runs successfully and returns correct string, but currentParser.getText() fails.. details
  • It's not a JSON problem: it perfectly being mapped on iOS.. details
  • For one object in values I call nextObject.put.. details
  • I have 3 sections (named arrays) in some huge file.It successfully parses first (a tiny one, under 1000 bytes).. details
  • Nothing special.. details
  • It's not a JSON problem: it perfectly being mapped on iOS.. details
  • Next array has nested array with simple objects (like this): CODESNIPPET_JAVA3 .. details
  • Thanks for your idea.. details
  • Also, you do not have to use JAXB annotations, unless you either want to use JAXB, or another package that can also use them: Jackson, for example, supports its own annotations as well as JAXB ones.. details
  • Jersey uses serialization frameworks like JAXB (xml) and Jackson (json, bson, xml, csv) for actual reading/writing of content.. details
  • There is nothing about the original problem that suggests switching APIs from Jackson to Gson is necessary, or otherwise makes for a simpler solution.. details
  • You can define custom serializer (and deserializer if you need it back) using @JsonSerialize(contentUsing=MySerializer.class); (contentUsing because it's to be used for List values, not List itself).. details
  • It is pretty simple and Jackson is fast.. details
  • It is pretty simple and Jackson is fast.. details
  • this seems simple.. details
  • Spring MVC support for Jackson 2; also works with Jackson's native "pretty print" feature URL_https://gist.github.com/2423129 [ URL_https://gist.github.com/2423129 ] I haven't tried the CODETERM1 found in the gist above but it would surprise me if it did not work.. details
  • I get the feeling that the answer might be a duplicate of this: URL_http://stackoverflow.com/questions/7045836/jackson-json-to-pojo-with- multiple-entries [Jackson---Json-to-POJO-With-Multiple-Entries] but I think that potentially the question is different enough.. details
  • And this works great for printing the bar element of the first object in foo, but I need a way to iterate through every element in a way that won't eat up all my memory.. details
  • Thanks.. details
  • So like the asker of that question, I have multiple objects in a file and I'm trying to turn them into POJOs and stuff them into a database of my design so I can access the data quickly rather than slowly.. details
  • Thank you very much!!. details
  • Thank you very much!!. details
  • This could be easy with Gson or jackson Gson example CODESNIPPET_JAVA1 .. details
  • Why not use a JSON parsing library for Java like URL_http://jackson.codehaus.org/ [Jackson] ?. details
  • Why not use a JSON parsing library for Java like URL_http://jackson.codehaus.org/ [Jackson] ?. details
  • Thanks,Amit Ofer .. details
  • I would really appreciate your help.. details
  • The simplest option is URL_http://wiki.fasterxml.com/JacksonInFiveMinutes [Jackson] : CODESNIPPET_JAVA1 .. details
  • The simplest option is URL_http://wiki.fasterxml.com/JacksonInFiveMinutes [Jackson] : CODESNIPPET_JAVA1 .. details
  • It is possible to explicitly register provider class from jax-rs jar (JacksonJsonProvider), using standard JAX-RS registration mechanism, see URL_http://wiki.fasterxml.com/JacksonFAQ JAX-RS (for example) for details.. details
  • It is possible to explicitly register provider class from jax-rs jar (JacksonJsonProvider), using standard JAX-RS registration mechanism, see URL_http://wiki.fasterxml.com/JacksonFAQ JAX-RS (for example) for details.. details
  • You are correct, Jackson was not correctly configured.. details
  • But good explanation of the actual issue.You can disable that feature (JsonGenerator.Feature.AUTO_CLOSE_TARGET) on ObjectMapper, if behavior is not desired: mapper.disable(JsonGenerator.Feature.AUTO_CLOSE_TARGET).. details
  • You have to tell Jackson to treat your input as a JSON array instead of a JSON object.. details
  • However, im not so sure its what you think here... the JSON string looks fine to me, property and value both in there... ).. details
  • Now i'm working with Jackson and i have some questions about it.. details
  • So, first service has class hierarchy like this: CODESNIPPET_JAVA1 .. details
  • And second service has class hierarchy like this: CODESNIPPET_JAVA2 .. details
  • I'm pretty sure it can build up instances of arbitrary classes from JSON.. details
  • You could get the first latitude value like this: CODESNIPPET_JAVA1 .. details
  • So something like this: CODESNIPPET_JAVA2 .. details
  • Jackson or json-simple from Google would be my recommendations: URL_http://code.google.com/p/json-simple/ .. details
  • Consider using some third party lib like GSON and Jackson, They are supposed to make developer's life easier.. details
  • I have read the docs on JsonNode and Tree in Jackson Api but it seems they are useful only if you want to traverse the entire tree.. details
  • How can I accomplish this with Jackson or is there some easier way I can accomplish this if Jackson is not the best for this?. details
  • I've heard of Jackson, but I am unsure how to use it to fit the json string I have since its not just key value pairs due to the "mymusic" list involved.. details
  • my goodness i'm glad i don't use Jackson.. details
  • my goodness i'm glad i don't use Jackson.. details
  • or gson (i have good experiences with that) or jackson (I don't have so good experiences with that).. details
  • Thanks, I kinda figured this was going to be the case...never can just be easy can it!. details
  • Ok!. details
  • (But it depends on what you want to do and how fast it must be ...) .. details
  • Fast json parser is URL_http://jackson.codehaus.org/ [Jackson-Java-JSON- processor] , but it have to read sequentially whole String to find your value.. details
  • (But it depends on what you want to do and how fast it must be ...) .. details
  • Fast json parser is URL_http://jackson.codehaus.org/ [Jackson-Java-JSON- processor] , but it have to read sequentially whole String to find your value.. details
  • But when I run my simple test I get: CODESNIPPET_JAVA4 .. details
  • @ProgrammerBruce: Thanks, the last example helped me put the remaining pieces together.. details
  • What I'd like to do is traverse the tree t1 node by node and compare every node in t1 with every node in t2.I know Jackson json parser allows me to query specific nodes, but how do I traverse an entire tree node by node?. details
  • This makes it hard to find your way in Jackson - how to know what is the correct/best way of doing things?. details
  • Jackson is a very powerful library, but it has a terribly extensive API.. details
  • Over a solution like this: CODESNIPPET_JAVA2 .. details
  • Or use something like mapper.convertValue?. details
  • And what is the best way to convert a JsonNode to an ObjectNode?. details
  • Jackson is a very powerful library, but it has a terribly extensive API.. details
  • FWIW Note that a more sophisticated Java-to/from-JSON APIs such as Jackson can accomplish this in one simple line of code.. details
  • Also, feel free to join mailing lists or 'jackson- users.ning.com', if you need more help -- although I try to answer questions here too of course.. details
  • Not only it has more features than the other mentioned libraries, it is also much faster (see benchmarks URL_https://github.com/eishay/jvm-serializers/wiki/ [here] ).. details
  • Check other comparisons on StackOverflow, most of them would recommend Jackson out of the rest.. details
  • Not only it has more features than the other mentioned libraries, it is also much faster (see benchmarks URL_https://github.com/eishay/jvm-serializers/wiki/ [here] ).. details
  • The naming strategy has to be extended to ignore these fields, which in my situation is fine since the object mapper won't be dealing with any other classes with an UPPER_UNDERSCORE strategy: CODESNIPPET_JAVA2 .. details
  • This is more ideal than the previous solution, but would require two annotated setters for every field - one for the new format, one to support the legacy format.. details
  • There is a URL_https://gist.github.com/1260489 [solution] that works for keys of a map, but I was unable to find a similar solution for field names.. details
  • In your case this would be both CODETERM2 and CODETERM3 types (if one extends the other, just add it to super type and that's fine).. details
  • See " URL_http://www.cowtowncoder.com/blog/archives/2012/03/entry_466.html [Jackson-2.0-released] " (section 'Handle Any Object Graphs, even Cyclic ones!'). details
  • Jackson 2.0 does support full cyclic object references.. details
  • I'm aware about CODETERM1 and CODETERM2 .They are good, if I'm serializing instances of CODETERM3 .. details
  • Neither of those approaches fulfills the 'dynamically' requirement.. details
  • I'm not sure if Jackson supports this use case, but below is an example of how you can leverage MOXy's CODETERM1 extension to meet your requirements.. details
  • Correct -- when sub-classing a Collection or Map, generic type information is stored in class file for super type (but NOT type itself!).. details
  • If your trying to serialize/deserialize json in Java I would recommend using Jackson.. details
  • Jackson provides annotations that can be attached to your class which make deserialization pretty simple.. details
  • Used the Jackson 1.9.6 lib to resolve the issue - see the 2nd line below: CODESNIPPET_JAVA1 .. details
  • @MByD When I debug my variables after deserialization I want to see that my data variable has that value: {"cat": "1.2.3.4", "ner": "80", "name": "pinta" } because I send it like that: "data":{"cat": "1.2.3.4", "ner": "80", "name": "pinta" }.. details
  • I am basically using the Jackson mapper with simple Java Maps.. details
  • It's simple and intuitive.. details
  • That does look similar to what I was looking for, thanks.. details
  • CODETERM6 looks something like this: CODESNIPPET_JAVA1 .. details
  • They specifically mention: In addition to binding to POJOs and "simple" types, there is one additional variant: that of binding to generic (typed) containers.. details
  • This case requires special handling due to so-called Type Erasure (used by Java to implement generics in somewhat backwards compatible way), which prevents you from using something like Collection.class (which does not compile).. details
  • I have configured a special MixIn class, CODETERM2 , to assist me with the deserialization.. details
  • They specifically mention: In addition to binding to POJOs and "simple" types, there is one additional variant: that of binding to generic (typed) containers.. details
  • This case requires special handling due to so-called Type Erasure (used by Java to implement generics in somewhat backwards compatible way), which prevents you from using something like Collection.class (which does not compile).. details
  • I have a Java class CODETERM1 that I am interested in deserializing from JSON.. details
  • On @JsonDeserialize -- yes, works on fields, setters; but before 1.9 had to be on one that gets used.. details
  • In general, this is true -- Jackson can not do structural conversions.. details
  • There is a good, very concise tutorial covering both options here: URL_http://wiki.fasterxml.com/JacksonInFiveMinutes [ URL_http://wiki.fasterxml.com/JacksonInFiveMinutes ] .. details
  • Have you considered using a library like Jackson ( URL_http://wiki.fasterxml.com/JacksonHome [ URL_http://wiki.fasterxml.com/JacksonHome ] ) to translate between Json objects and Java objects?. details
  • There is a good, very concise tutorial covering both options here: URL_http://wiki.fasterxml.com/JacksonInFiveMinutes [ URL_http://wiki.fasterxml.com/JacksonInFiveMinutes ] .. details
  • Have you considered using a library like Jackson ( URL_http://wiki.fasterxml.com/JacksonHome [ URL_http://wiki.fasterxml.com/JacksonHome ] ) to translate between Json objects and Java objects?. details
  • GSON is simpler, jackson is faster.. details
  • if you have a simple flat model object with direct mapping to json, they are both brain dead simple.. details
  • GSON is simpler, jackson is faster.. details
  • I don't know enough about Spring to know about ModelAndView part, but I know enough about Jackson to say that the performance is unlikely to be problematic for Jackson filtering.One reason why filtering approaches are not trivially simple is because they try to balance usability with performance -- and as such, both JSON Views and Filters have very low overhead.. details
  • I don't know enough about Spring to know about ModelAndView part, but I know enough about Jackson to say that the performance is unlikely to be problematic for Jackson filtering.One reason why filtering approaches are not trivially simple is because they try to balance usability with performance -- and as such, both JSON Views and Filters have very low overhead.. details
  • Are there any alternative paths I should try to look into with respect to the above problem?. details
  • I'm developing a REST api which needs to support optional filtering of properties based on a request parameter (based on Spring MVC 3.0.x and Jackson).. details
  • What are the optimizations (if any) jackson tries to perform with respect to filter caching?. details
  • Once I have the final string I want to use the jackson @JSONFilter to seralize only the desired properties like this: CODESNIPPET_JAVA1 .. details
  • So that we have to name the POJO fields as "_new_", "_public_", "_static_", etc, respectively, but use jax-b annotation to rename them back to "new", "public", "static", etcin the generated XML (and json) elements.. details
  • So that we have to name the POJO fields as "_new_", "_public_", "_static_", etc, respectively, but use jax-b annotation to rename them back to "new", "public", "static", etcin the generated XML (and json) elements.. details
  • So, you've got two choices: 1. configuring JAXB to be more standard ( URL_http://stackoverflow.com/questions/1145476/how-do-i-marshal-nested-lists-as-json-using-jersey-i-get-an-array-of-nulls-or-a [see-here] for more); 2. using Jackson instead of JAXB which I recommend.. details
  • Any reasons why this might be happening are appreciated.. details
  • I'm using ObjectMapper in the following situation, however, the Person class has a JSON property of "last_name" which doesn't seem to be getting mapped when the "name" property is mapped fine.. details
  • This works for most of the basic units, but not for something like say "NonSI.Byte.times(1024)".. details
  • While serializing I do something like CODESNIPPET_JAVA1 .. details
  • I have observed Jackson is simple and convenient in many ways.. details
  • It seems that apparently this is because Jersey uses a POJO->JSON mapper other than Jackson, and for reasons that elude me, they thought it would be a great idea to automatically unwrap single-element lists.. details
  • I have a request executor class that sends request to a webservice and then reads the responses and creates a java object from the response using ObjectMapper.readValue(); My problem is that the webservice returns the responses in mixedCase and not in the correct CamelCase for the classes in the response so for example the following response: CODESNIPPET_JAVA1 .. details
  • Note that I cannot change the request executor so I can't put in a different de-serializer or something like that.. details
  • Would anyone be able to point me in the right direction here, as have tried many different solutions, but no success.. details
  • Thanks in advance for any help EDIT: Should my JSON look like this then CODESNIPPET_JAVA8 .. details
  • Thanks in advance for any help EDIT: Should my JSON look like this then CODESNIPPET_JAVA8 .. details
  • I never did find an answer to the actual question I was asking here, but instead I found a simple 3 step process that accomplishes the same end result that I wanted: add URL_http://jackson.codehaus.org/ [Jackson] to my project configure Jersey to enable URL_http://jersey.java.net/nonav/documentation/latest/json.html#json.pojo.approach.section [FEATURE_POJO_MAPPING] slap myself on the head a few times because it turned out to be so easy.. details
  • I never did find an answer to the actual question I was asking here, but instead I found a simple 3 step process that accomplishes the same end result that I wanted: add URL_http://jackson.codehaus.org/ [Jackson] to my project configure Jersey to enable URL_http://jersey.java.net/nonav/documentation/latest/json.html#json.pojo.approach.section [FEATURE_POJO_MAPPING] slap myself on the head a few times because it turned out to be so easy.. details
  • Thanks!. details
  • decorating an object with CODETERM1 , but I'd prefer to avoid any of that since my JSON input will be generated automatically by other services, and those other services shouldn't have to know anything about the internals of my service.. details
  • So imagine I have a bean like: CODESNIPPET_JAVA1 .. details
  • Previously I have used GSON to do that, but now I am faced with a project that already depends on Jackson and I would prefer not to introduce new dependency if I can do with what I already have at hand.. details
  • Jonathan M provided an excellent answer, but I wonder - if you have these numeric attributes, why not use an Array?. details
  • I have used both Jackson and Gson for the JSON support with RESTEasy and it is quite simple.. details
  • I have used both Jackson and Gson for the JSON support with RESTEasy and it is quite simple.. details
  • The problem is that even testing the simplest possible use-case has required several questions here on SO, and quite a bit of hunting around.. details
  • Thanks, I will look into that.. details
  • Looks like you already found the solution; great!. details
  • The API is efficient and flexible.. details
  • The API is efficient and flexible.. details
  • Thanks .. details
  • There should be sufficient information in the URL_http://wiki.fasterxml.com/JacksonInFiveMinutes [Jackson-In-Five-Minutes] tutorial to get this working in a number of ways.. details
  • There should be sufficient information in the URL_http://wiki.fasterxml.com/JacksonInFiveMinutes [Jackson-In-Five-Minutes] tutorial to get this working in a number of ways.. details
  • There should be sufficient information in the URL_http://wiki.fasterxml.com/JacksonInFiveMinutes [Jackson-In-Five-Minutes] tutorial to get this working in a number of ways.. details
  • There should be sufficient information in the URL_http://wiki.fasterxml.com/JacksonInFiveMinutes [Jackson-In-Five-Minutes] tutorial to get this working in a number of ways.. details
  • I had thought that the URL_http://jackson.codehaus.org/1.9.0/ javadoc/org/codehaus/jackson/annotate/JsonValue.html [JsonValue] annotation would be perfect for this (I'd annotate a method that returns the inner CODETERM4 ), but it Jackson seems to be ignoring it.. details
  • But behind the scenes, it's actually a CODETERM2 (this class represents HTTP request parameters), and I'd like for Jackson to serialize it as if it's a CODETERM3 .. details
  • If I configure Spring properly, I can have Jackson serialize the return value from getIcon() into a JSON format, maybe something like CODETERM2 .. details
  • I will suggest to have a look at URL_http://jackson.codehaus.org/ [Jackson- Api] it is very easy to combine the streaming and tree-model parsing options: you can move through the file as a whole in a streaming way, and then read individual objects into a tree structure.. details
  • Jackson supports mapping onto your own Java objects too.. details
  • I will suggest to have a look at URL_http://jackson.codehaus.org/ [Jackson- Api] it is very easy to combine the streaming and tree-model parsing options: you can move through the file as a whole in a streaming way, and then read individual objects into a tree structure.. details
  • You may want to implement CODETERM3 and CODETERM4 as well.. details
  • You may want to implement CODETERM3 and CODETERM4 as well.. details
  • Jackson does support polymorphism, In your child class annotate with a name: CODESNIPPET_JAVA1 .. details
  • The Jackson JSON libraries are great.. details
  • I would be interested in the solution you will find.. details
  • Fully dynamic filtering: @JsonFilter).. details
  • If you use Jackson (a great JSON lib - kind of the standard for Java I believe), you may use the @View annotation to filter what you want in the resulting object.. details
  • Jackson 2.0 will actually support use of just CODETERM2 for both, including deserialization.. details
  • I need to do more testing but so far so good.. details
  • I need to do more testing but so far so good.. details
  • Java Bean/Request object BooleanField locked;public BooleanField getLocked() {return locked;} The Jackson docs state that it can do this via @JsonValue/@JsonCreator but provides no examples (how helpful!).. details
  • Java Bean/Request object BooleanField locked;public BooleanField getLocked() {return locked;} The Jackson docs state that it can do this via @JsonValue/@JsonCreator but provides no examples (how helpful!).. details
  • thanks!r.. details
  • We just upgraded some maven dependencies, that triggered an update of Jackson from 1.7.x to 1.9.x We use to annotate @JsonIgnore on setter methods, on methods not supposed to be set from client side.. details
  • One more alternative method: check out CODETERM7 (note the -s in there), which is convenient and works pretty much the same way as manually creating and passing parser.. details
  • This may also be slightly faster, since there's no per-parser creation overhead.. details
  • It looks like this: CODESNIPPET_JAVA1 .. details
  • Any thoughts are welcome!. details
  • :) .. details
  • And I know for a fact that the messages arrive, I tried simulating the client with CODETERM6 and the incoming messages are always correct, so I know it's when reading.. details
  • What is the best way to do inline serialization of JSON data using JACKSON?. details
  • Simply using a composite object would yield a serialization like : CODESNIPPET_JAVA4 .. details
  • That being said, with the current state of Java XML support, you should find XML equally accessible.. details
  • I prefer URL_http://jackson.codehaus.org/ [Jackson] myself.. details
  • I prefer URL_http://jackson.codehaus.org/ [Jackson] myself.. details
  • Google-GSon is also popular, and you can see how some people compare the two in this URL_http://stackoverflow.com/questions/2378402/jackson-vs-gson [question] .. details
  • Thanks,Ransom Edit: Used StaxMan suggestion, including code that I would end up using (and made bar a getter for example's sake) CODESNIPPET_JAVA2 .. details
  • A simple example of the type of output I get from the server is like the following: CODESNIPPET_JAVA2 .. details
  • A simple example of the type of output I get from the server is like the following: CODESNIPPET_JAVA2 .. details
  • It works!. details
  • Thanks for your advices :-) Solution with Jackson lib** CODESNIPPET_JAVA8 .. details
  • Thanks for your advices :-) Solution with Jackson lib** CODESNIPPET_JAVA8 .. details
  • Jackson 1.9 will (finally!). details
  • last time i checked gson doesn't handle circular references.. though an update could've fixed that.. i find the [link] URL_http://jackson.codehaus.org / the best.. details
  • One of the best JSON library for Java is Jackson URL_http://jackson.codehaus.org [( URL_http://jackson.codehaus.org ] ).. details
  • One of the best JSON library for Java is Jackson URL_http://jackson.codehaus.org [( URL_http://jackson.codehaus.org ] ).. details
  • According to URL_http://stackoverflow.com/a/2431212/774444 [this-answer] Jackson supports both generics as well as polymorphism.. details
  • According to URL_http://stackoverflow.com/a/2431212/774444 [this-answer] Jackson supports both generics as well as polymorphism.. details
  • No, Jackson does not keep track of cyclic instances, except for special case of self-reference which is caught.. details
  • How do I accomplish this with Jackson?. details
  • I succeeded to solve my problem, thanks to URL_http://markmail.org/search/list %3aorg.codehaus.jackson#query%3a%20list%3aorg.codehaus.jackson.user+page:1+mid %3atoy6mh4wpezo3mnq+state%3aresults [Tatu-from-Jackson-ML] .. details
  • My problem is barely simple : I have the following simple class : CODESNIPPET_JAVA1 .. details
  • You can not, for example, just ask for value of type CODETERM5 , since it does not have such annotation.. details
  • Stuff was successfully read from the data source, but the stuff didn't make sense.. details
  • It works just fine in my Velocity/JSP pages: CODESNIPPET_JAVA1 .. details
  • Thanks.. details
  • Thank you Paul for the help, what you say makes sense.. details
  • Thank you Paul for the help, what you say makes sense.. details
  • Does the class follow regular JavaBean conventions with getter / setters, default constructor etc.. JacksonJsonConverter works with Java Beans.. details
  • @Jon7 // Thank you for the suggestion.. details
  • Just FYI, something like Jackson can be anlot faster and easier than using the json reference implementation.. details
  • Just FYI, something like Jackson can be anlot faster and easier than using the json reference implementation.. details
  • Thanks for the reply.. details
  • Thank you very much!, that was indeed the way to go.. details
  • Thank you very much!, that was indeed the way to go.. details
  • Thank you very much!, that was indeed the way to go.. details
  • Thank you very much!, that was indeed the way to go.. details
  • Then my CODETERM1 checks if the method parameter is annotated with CODETERM2 , and if it is it extracts the actual type from the parameter (not quite straight-forward it turns out if you want to handle generic parameters as well, such as CODETERM3 or CODETERM4 ), and invokes Jackson's JsonParser manually to create the correct type.. details
  • Use a library like Jackson or GSON to deserialize the json to instances of your classes.. details
  • I have a JSON like this CODESNIPPET_JAVA1 .. details
  • On a per-class basis with the @JsonIgnoreProperties(ignoreUnknown true), or globally by configuring ObjectMapper: CODESNIPPET_JAVA3 .. details
  • On a per-class basis with the @JsonIgnoreProperties(ignoreUnknown true), or globally by configuring ObjectMapper: CODESNIPPET_JAVA3 .. details
  • Deserializing objects mostly works fine; _except_, it is inter-operating with buggy code that emitted the wrong value when the list was empty.. details
  • The class structure looks like this: CODESNIPPET_JAVA1 .. details
  • Deserializing objects mostly works fine; _except_, it is inter-operating with buggy code that emitted the wrong value when the list was empty.. details
  • Type erasure is actually not 100% complete: class declarations do retain generic type information for method and field declarations, as well as for subtype ("extends Xxx") declarations -- this is where Jackson finds content type.. details
  • But Jackson has a simple API, is highly extendable and very fast.. details
  • But Jackson has a simple API, is highly extendable and very fast.. details
  • Probably depends on what you wanna do with the library, but my point is that there might be some other libraries that are more lightweight.. details
  • Probably depends on what you wanna do with the library, but my point is that there might be some other libraries that are more lightweight.. details
  • Thank you very much.. details
  • See also URL_http://stackoverflow.com/q/2378402/45935 -- Jackson is another strong contender and can serialize/deserialize Java object hierarchies at pretty high speed.. details
  • See also URL_http://stackoverflow.com/q/2378402/45935 -- Jackson is another strong contender and can serialize/deserialize Java object hierarchies at pretty high speed.. details
  • The following code parses the JSON input using URL_http://jackson.codehaus.org [Jackson] , which I recommend if you don't have a JSON parsing library of choice yet.. details
  • The following code parses the JSON input using URL_http://jackson.codehaus.org [Jackson] , which I recommend if you don't have a JSON parsing library of choice yet.. details
  • Once again, this might be not the best way to do it and you should try cleaner solutions first.. details
  • I would recommend to dig through Jackson documentation before using it, as a last measure**.. details
  • That way Jackson will properly map your object, you will have a map of all properties and you can iterate over it, get check type thanks to CODETERM1 and retrieve all data.. details
  • I would recommend to dig through Jackson documentation before using it, as a last measure**.. details
  • This works perfectly fine for the fields id, name etc.How do I write a custom deserializer such that any fields in the json starting with CODETERM1 are pushed into the Map custom?. details
  • I am pretty new to Jackson and am using Springs Rest Template and configured it to use CODETERM2 .. details
  • Jackson library resolved my problem (thanks @fge).This is working example: CODESNIPPET_JAVA1 .. details
  • I found views a really nice solution for serialising the same object in different ways.. details
  • Looks like you are making use of JAXB for XML and Jackson for JSON.. details
  • I want to serialize my POJO class, when produce output to XML, it work perfect as what I want.. details
  • So much thanks before .. details
  • Assuming you call the top level class "Bing", then you could use code like this: CODESNIPPET_JAVA1 .. details
  • A serialized object of this class looks like CODESNIPPET_JAVA2 .. details
  • I have a simple POJO like CODESNIPPET_JAVA1 .. details
  • If i need a 3rd party lib i would prefer one w as few dependencies as possibles (such as Jackson which only requires the std JDK libs).. details
  • It looks like Jackson is looking for more information for the custom serializer (handledType() method needs overriding?. details
  • Will the Child's extra member fields be serialized, as well ?Basically, I want to know if these frameworks support polymorphic consume & respond.. details
  • I've thought about this kind of implementation: CODESNIPPET_JAVA2 .. details
  • Does Jackson with Jersey support polymorphic classes over JSON?. details
  • But when I will serialize object, result should be like this one: CODESNIPPET_JAVA3 .. details
  • For deserealization from JSON want to have format like this: CODESNIPPET_JAVA2 .. details
  • But if your making something more sophisticated, I suggest you to use Jackson for parsing and Hibernate as a middleware between application and sql database.. details
  • For JSON parsing, I recommend URL_http://jackson.codehaus.org [Jackson] .. details
  • For JSON parsing, I recommend URL_http://jackson.codehaus.org [Jackson] .. details
  • Or if you prefer Hibernate, use URL_https://github.com/FasterXML/jackson- module-hibernate [Jackson-Hibernate-module] to handle some edge cases there may be when reading/writing POHOs as JSON.. details
  • Aside from Jersey (and other JAX-RS impls like RESTeasy), which use Jackson, you might also benefit from using something like URL_http://jdbi.org/ [jDBI] for binding relational data in POJOs first.It does many things bigger ORMs (like Hibernate) do, but is simpler to use for most common tasks.. details
  • Or if you prefer Hibernate, use URL_https://github.com/FasterXML/jackson- module-hibernate [Jackson-Hibernate-module] to handle some edge cases there may be when reading/writing POHOs as JSON.. details
  • If complicated interrogation and/or manipulation of the data and resulting JSON are in order, then URL_http://wiki.fasterxml.com/JacksonHome [Jackson] combined with URL_http://wiki.fasterxml.com/JacksonExtensionXmlDataBinding [the-jackson-xml-databind-extension] provide for a feature-rich option that also has excellent performance.. details
  • If complicated interrogation and/or manipulation of the data and resulting JSON are in order, then URL_http://wiki.fasterxml.com/JacksonHome [Jackson] combined with URL_http://wiki.fasterxml.com/JacksonExtensionXmlDataBinding [the-jackson-xml-databind-extension] provide for a feature-rich option that also has excellent performance.. details
  • If complicated interrogation and/or manipulation of the data and resulting JSON are in order, then URL_http://wiki.fasterxml.com/JacksonHome [Jackson] combined with URL_http://wiki.fasterxml.com/JacksonExtensionXmlDataBinding [the-jackson-xml-databind-extension] provide for a feature-rich option that also has excellent performance.. details
  • If complicated interrogation and/or manipulation of the data and resulting JSON are in order, then URL_http://wiki.fasterxml.com/JacksonHome [Jackson] combined with URL_http://wiki.fasterxml.com/JacksonExtensionXmlDataBinding [the-jackson-xml-databind-extension] provide for a feature-rich option that also has excellent performance.. details
  • If complicated interrogation and/or manipulation of the data and resulting JSON are in order, then URL_http://wiki.fasterxml.com/JacksonHome [Jackson] combined with URL_http://wiki.fasterxml.com/JacksonExtensionXmlDataBinding [the-jackson-xml-databind-extension] provide for a feature-rich option that also has excellent performance.. details
  • If complicated interrogation and/or manipulation of the data and resulting JSON are in order, then URL_http://wiki.fasterxml.com/JacksonHome [Jackson] combined with URL_http://wiki.fasterxml.com/JacksonExtensionXmlDataBinding [the-jackson-xml-databind-extension] provide for a feature-rich option that also has excellent performance.. details
  • Thanks, although I think _this.aString aString.trim()_ is probably easier :-) Hopefully it will be a feature in a future version.. details
  • Thanks, although I think _this.aString aString.trim()_ is probably easier :-) Hopefully it will be a feature in a future version.. details
  • Thanks.. details
  • Now I like to serialize this list in a JSON like that: CODESNIPPET_JAVA2 .. details
  • For more information and details on related configuration options, I recommend reviewing URL_http://jackson.codehaus.org/1.9.2/javadoc/org/codehaus/jackson/m ap/ObjectMapper.html#setVisibility%28org.codehaus.jackson.annotate.JsonMethod, %20org.codehaus.jackson.annotate.JsonAutoDetect.Visibility%29 [the-JavaDocs- on-CODETERM4] .. details
  • For more information and details on related configuration options, I recommend reviewing URL_http://jackson.codehaus.org/1.9.2/javadoc/org/codehaus/jackson/m ap/ObjectMapper.html#setVisibility%28org.codehaus.jackson.annotate.JsonMethod, %20org.codehaus.jackson.annotate.JsonAutoDetect.Visibility%29 [the-JavaDocs- on-CODETERM4] .. details
  • The JSON in the original question deserializes just fine for me using Jackson 1.9.2.. details
  • Something like CODETERM1 I want the value of the CODETERM2 .. details
  • My JSON string has nested values.. details
  • Thanks.. details
  • I'm wondering if I can get nested values the kind of way PHP does it i.e CODETERM5 .. details
  • I'm using Jackson to handle the JSON, and the code I'm using looks like this: CODESNIPPET_JAVA2 .. details
  • Some sample JSON I'm looking to parse would be like this: CODESNIPPET_JAVA1 .. details
  • What I'm trying to accomplish is to get just a few values out of this JSON, e.g.. details
  • Thanks.. details
  • Im pretty sure you shouldn't need a String constructor, and if you do that you shouldnt have to populate the properties in that constructor, right?. details
  • However, if I add a sing-String constructor, like this: CODESNIPPET_JAVA1 .. details
  • at [Source: java.io.StringReader@4059dcb0; line: 1, column: 2] _I'd really appreciate some input here ) Thx!_ ProtocolContainer.java - a container class that encapsulates my "SubPackets":** CODESNIPPET_JAVA2 .. details
  • There are other modules that support URL_https://github.com/michel- kraemer/bson4jackson [BSON] and URL_https://github.com/FasterXML/jackson- dataformat-csv [CSV] , as well; Jackson is becoming a general-purpose data- binding tool.. details
  • There are other modules that support URL_https://github.com/michel- kraemer/bson4jackson [BSON] and URL_https://github.com/FasterXML/jackson- dataformat-csv [CSV] , as well; Jackson is becoming a general-purpose data- binding tool.. details
  • you should probably just write the value: writeNumber(id).. details
  • This is eventually the kind of code I would like to use: CODESNIPPET_JAVA4 .. details
  • The previous examples can process the following kind of json input: CODESNIPPET_JAVA3 .. details
  • Being given access to what I call the "top level map" makes things simple.. details
  • This is particularly useful in my case because I would like to deserialize a json which structure I don't know.. details
  • To sum up the requirements, I need: access to the top level map (don't know the json property names in advance) to create an immutable object (so can't use CODETERM9 ) to inject some conf to the CODETERM10 decorated constructor or factory method I cannot change the json input format, which looks like this: CODESNIPPET_JAVA5 .. details
  • As an alternative, I'm a big fan of URL_http://wiki.fasterxml.com/JacksonDownload [Jackson] , which does what you describe in a really pleasant and simple way.. details
  • As an alternative, I'm a big fan of URL_http://wiki.fasterxml.com/JacksonDownload [Jackson] , which does what you describe in a really pleasant and simple way.. details
  • The sixth part of the series provides easy navigation links for the comparison, as well as a summary comparison listing.. details
  • Is there a way to deserialize a property that may have two types, for some objects it appears like this CODESNIPPET_JAVA1 .. details
  • Any help is appreciated!. details
  • Thanks!. details
  • Is there a way to deserialize a property that may have two types, for some objects it appears like this CODESNIPPET_JAVA1 .. details
  • While there are decent APIs for easily mapping between Java data structures, e.g., from the JSONObject to your preferred data structure, since the incoming data format is JSON, I'd much prefer to just use a good JSON-to/from-Java API like URL_http://jackson.codehaus.org/ [Jackson] .. details
  • While there are decent APIs for easily mapping between Java data structures, e.g., from the JSONObject to your preferred data structure, since the incoming data format is JSON, I'd much prefer to just use a good JSON-to/from-Java API like URL_http://jackson.codehaus.org/ [Jackson] .. details
  • Ah, thanks.. details
  • Ah, thanks.. details
  • Since this is a highly voted java+json question, might be nice to summarize answers; especially since this is a rather old question, and many new options have become available (Spring MVC, Jersey/RESTeasy/CXF/Restlet; Gson/Jackson/FlexJSON).. details
  • I am pretty sure that you are not actually using Jackson ("POJO" variant of JSON serialization), since Jackson would not convert single-element arrays or lists to anything else.. details
  • This is a very powerful way to do things, but takes a while getting used to.. details
  • So whereas you would use CODETERM1 , you use CODETERM2 instead.Or, if you want to play safe and allow "missing" entries, use CODETERM3 (and ditto for JSON Objects).. details
  • Hope this helps!. details
  • This is a very powerful way to do things, but takes a while getting used to.. details
  • Dynamic polymorphic type handling with Jackson.. details
  • In short: I want to be able to resolve the deserialization type of the configuration object depending on the surrounding class type by setting whatever is necessary on ObjectMapper.. details
  • I am parsing the JSON in Java with Jackson like this CODESNIPPET_JAVA3 .. details
  • Good thing is that the deserializing code knows which is the correct custom class to use for deserializing (basically there is a known mapping from class to configuration class), but I do not know how make Jackson recognize this information when deserializing the JSON.. details
  • And json input like this one (which I cannot change myself) CODESNIPPET_JAVA2 .. details
  • There's quite a lot of this that I don't need; in fact I only want something like an array of ["bobsyeruncle","easyaspie"].. details
  • In order to access the strings I want, is it necessary to create something like a list of "Links" that include both "word" and "code" and then ignore "code"?. details
  • I've found several answers that are close to what I'm trying to do, but not enough that I've been able to get it to work.. details
  • Most of the answers I've found here assume that I want to create a POJO like "Links" that includes both "word" and "code," which I don't.. details
  • ETA this worked, I think!. details
  • I experimented with a simpler version of the JSON that didn't have an array, and was able to access a single string easily using the rootNode.get("query").get("pages")... way described in URL_http://stackoverflow.com/questions/338586/a-better-java-json- library/338608#338608 [A-better-Java-JSON-library?]. details
  • ETA this worked, I think!. details
  • It seems like you can't serialize such classes, see URL_http://www.cowtowncoder.com/blog/archives/2010/08/entry_411.html for details.. details
  • As I've said in URL_http://stackoverflow.com/questions/8087094/light-and-fast-android-json- parser/ [the-past] in another related SO question, I've gotten huge performance gains (when working with large sets of JSON) by simply switching to Jackson from GSON.. details
  • As I've said in URL_http://stackoverflow.com/questions/8087094/light-and-fast-android-json- parser/ [the-past] in another related SO question, I've gotten huge performance gains (when working with large sets of JSON) by simply switching to Jackson from GSON.. details
  • I've been looking for a useful online tutorial or example, but nothing immediately appears.. details
  • I've been looking for a useful online tutorial or example, but nothing immediately appears.. details
  • I've been looking for a useful online tutorial or example, but nothing immediately appears.. details
  • I've been looking for a useful online tutorial or example, but nothing immediately appears.. details
  • I have a class and there are variables inside it as well.. details
  • Yes, that does work -- thanks for pointing out the method for creating generic type other than Map/Collection type!.. details
  • Jackson seems to be able to resolve the key and value types once the generic declarations are "hidden" and provides a non-null CODETERM4 to the created CODETERM5 , resulting in the desired JSON output.. details
  • Jackson seems to be able to resolve the key and value types once the generic declarations are "hidden" and provides a non-null CODETERM4 to the created CODETERM5 , resulting in the desired JSON output.. details
  • That is correct, we have no valid reason to keep trailing (or leading) whitespace present in an incoming JSON message.. details
  • It works : I did the following: JavaType topMost mapper.getTypeFactory().constructParametricType(MyWrapper.class, ActualClassRuntime.class); and then did the readValue and it finally worked :).. details
  • @matt: I thought it was pretty clearly stated that the data has trailing spaces from the source and he wants to configure Jackson to remove the trailing spaces on deserialization.. details
  • Are you 100% sure the spaces aren't in the actual value?. details
  • I'm hoping that if I can get it working for the test case below, I will be able to apply the same concepts to the actual code.. details
  • Please add the implementation of getT().. details
  • I have a model like that: CODESNIPPET_JAVA1 .. details
  • I get a JSON String from remote and message, errorCode variables gets the correct value.. details
  • I want it to be a json string as like: CODESNIPPET_JAVA2 .. details
  • Update As promised I'm back but not with Gson, instead with Jackson 2.. details
  • 2: As Jackson Documentation says: Streaming API is best performing (lowest overhead, fastest read/write; other 2 methods build on it) 3: I see you in your code use getInt, getBoolean.. details
  • With this kind of cursors (a.k.a.. details
  • Check about your favourite DBMS.. details
  • Thanks!.. details
  • (I highly recommend abandoning Gson in favor of Jackson, whenever possible.). details
  • That blog post also includes an example of using Jackson to accomplish the same task with just one line of code.. details
  • See URL_http://stackoverflow.com/questions/5006185/how-to-html-escape-values-by - jackson-generator.. details
  • And thanks, will also post with Jackson.. details
  • Thank youn Andy!. details
  • How are you exposing the private fields?. details
  • Error 406 in a simple request using Spring 3 and Jackson 1.9.. details
  • Error 406 in a simple request using Spring 3 and Jackson 1.9.. details
  • My goal was to test how easy was to use both of them to generate JSON results.. details
  • I created a simple jQuery getJSON call, with the same result.. details
  • I've create a simple test case with Jackson 1.9 and Spring 3.. details
  • Of course, any JSON parser that creates simple hashmaps and lists can be accessed quite easily: CODESNIPPET_JAVA1 .. details
  • Of course, any JSON parser that creates simple hashmaps and lists can be accessed quite easily: CODESNIPPET_JAVA1 .. details
  • Of course, any JSON parser that creates simple hashmaps and lists can be accessed quite easily: CODESNIPPET_JAVA1 .. details
  • Let me know if this works for you, if not I can post my JSON client code.. details
  • I then looked at URL_http://wiki.fasterxml.com/JacksonInFiveMinutes [ URL_http://wiki.fasterxml.com/JacksonInFiveMinutes ] , Jackson would have been able to use the pojos created by jsonschema2pojo if Id managed to get it working.. details
  • So in summary Im going to use Jackson for dealing with json returned by the webservice, I'll have to manually create a POJO for each entity but at least it works.. details
  • I then looked at URL_http://wiki.fasterxml.com/JacksonInFiveMinutes [ URL_http://wiki.fasterxml.com/JacksonInFiveMinutes ] , Jackson would have been able to use the pojos created by jsonschema2pojo if Id managed to get it working.. details
  • Alternately on the CODETERM6 class itself, you can do something like: CODESNIPPET_JAVA2 .. details
  • This works before CODETERM7 but pollutes your object.. details
  • I have not done this kind of thing for classes that contain references to themselves (e.g.. details
  • Suppose I have a json object that looks like: CODESNIPPET_JAVA1 .. details
  • Thanks in advance!. details
  • So you could take your xml schema, URL_http://publib.boulder.ib m.com/infocenter/wasinfo/v7r0/index.jsp?topic=/com.ibm.websphere.express.doc/i nfo/exp/ae/twbs_jaxbschema2java.html [generate-java-classes-from-it-with-jaxb- annotations] , then generate the json schema from that as URL_http://wiki.fasterxml.com/JacksonJAXBAnnotations [jackson-supports-jaxb- annotations] .. details
  • So you could take your xml schema, URL_http://publib.boulder.ib m.com/infocenter/wasinfo/v7r0/index.jsp?topic=/com.ibm.websphere.express.doc/i nfo/exp/ae/twbs_jaxbschema2java.html [generate-java-classes-from-it-with-jaxb- annotations] , then generate the json schema from that as URL_http://wiki.fasterxml.com/JacksonJAXBAnnotations [jackson-supports-jaxb- annotations] .. details
  • It's working now.. details
  • Have had no success achieving the same result with GSON or Jackson.. details
  • I was able to successfully parse the below JSON string in Android using JSONObject and JSONArray.. details
  • Well sometimes performance and usability can be at odds, but I've found GSON to be easier to use than alternatives like URL_http://jackson.codehaus.org/Home [Jackson] , URL_http://json.org/java/ [org.json] and others.. details
  • Well sometimes performance and usability can be at odds, but I've found GSON to be easier to use than alternatives like URL_http://jackson.codehaus.org/Home [Jackson] , URL_http://json.org/java/ [org.json] and others.. details
  • Well sometimes performance and usability can be at odds, but I've found GSON to be easier to use than alternatives like URL_http://jackson.codehaus.org/Home [Jackson] , URL_http://json.org/java/ [org.json] and others.. details
  • Well sometimes performance and usability can be at odds, but I've found GSON to be easier to use than alternatives like URL_http://jackson.codehaus.org/Home [Jackson] , URL_http://json.org/java/ [org.json] and others.. details
  • The mapper creates a Pojo object with the values filled in.. details
  • or alternatively, modify json marshaling so it will use the enum "value" method instead the enum name?. details
  • (note that keys "key3", "key31" and "key6" should be ignored) Using the annotation CODETERM1 , I can create a function to populate the map with all top level atoms, but the method will also catch the node having children (when the value is a Map).. details
  • From that point, I can of course write myself the simple recursion over the children, but I would like this part to be handled automatically (in an elegant way) through the use of a facility from the library (annotation, configuration, etc.. details
  • (note that keys "key3", "key31" and "key6" should be ignored) Using the annotation CODETERM1 , I can create a function to populate the map with all top level atoms, but the method will also catch the node having children (when the value is a Map).. details
  • From that point, I can of course write myself the simple recursion over the children, but I would like this part to be handled automatically (in an elegant way) through the use of a facility from the library (annotation, configuration, etc.. details
  • Jackson Databind v Jackson Streaming Porsche v Ferrari -- They're both awesome and very fast, but yes, one of them is faster.. details
  • Jackson Databind v Jackson Streaming Porsche v Ferrari -- They're both awesome and very fast, but yes, one of them is faster.. details
  • Jackson Databind v Jackson Streaming Porsche v Ferrari -- They're both awesome and very fast, but yes, one of them is faster.. details
  • Jackson Databind v Jackson Streaming Porsche v Ferrari -- They're both awesome and very fast, but yes, one of them is faster.. details
  • Thanks: I used the mixin approach.. details
  • Thanks: I used the mixin approach.. details
  • Thanks @doc_180 already found it.. details
  • It works fine.. details
  • Thank you!. details
  • Yes!. details
  • Yes!. details
  • That maybe correct.. details
  • I only care about the property value when I make a specific request.. details
  • Jackson is the only JSON-to/from-Java library I've seen that will deserialize any Json object of arbitrary complexity to a Map in just one simple line.. details
  • No you don't, see the link to Jackson simple databinding in my reply.. details
  • It looks really promising.. details
  • Thanks!. details
  • Thanks!. details
  • It looks really promising.. details
  • Any ideas how I can traverse the keys quickly and then take the value out and deserialize it?. details
  • I have tried creating a class for POJO mapping, but that has a lot of overhead and it especially doesn't like a Map because the inside of my value is sometimes a value-type and sometimes more JSON.. details
  • "foo", "bar", "far"), to determine if I need to fully deserialize the "value" portion to POJOs.. details
  • I need to quickly parse out the root node of similar JSON like below: CODESNIPPET_JAVA1 .. details
  • Simply put, I need to look at the "key"'s value (i.e.. details
  • Thanks in advance!. details
  • This works a little too well, because even integers and booleans from the JSON are converted into Strings.Example: CODESNIPPET_JAVA1 .. details
  • Thanks for the tips.. details
  • Thanks for the tips.. details
  • Correct: also note that @JsonProperty would also work instead of @JsonSetter, since it can not be a getter due to signature.. details
  • Correct: also note that @JsonProperty would also work instead of @JsonSetter, since it can not be a getter due to signature.. details
  • Is it possible somehow to create a Java class like the one below from the JSON just with Data Binding using Jackson or do I need an intermediate step for that?. details
  • The content of friends are ids of other users in the list.. details
  • Thanks for your help.. details
  • I read the original question too fast, maybe.. details
  • I read the original question too fast, maybe.. details
  • This is same as described in URL_http://wiki.fasterxml.com/JacksonHowToCustomDeserializers , which I have already followed!.. details
  • This is same as described in URL_http://wiki.fasterxml.com/JacksonHowToCustomDeserializers , which I have already followed!.. details
  • At line 169 I have this CODETERM1 When calling com.test.project.offline.ws.WsApiResource.updateData() method locally in a unit test it works without any error.. details
  • Kindly help me in fixing this.. details
  • This will yield better performance (constant-time lookup) and cleaner/clearer code than using a loop: CODESNIPPET_JAVA3 .. details
  • This will yield better performance (constant-time lookup) and cleaner/clearer code than using a loop: CODESNIPPET_JAVA3 .. details
  • and need something like CODESNIPPET_JAVA3 .. details
  • How can I recieve the node names from a JSON tree using Jackson?The JSON-File looks something like this: CODESNIPPET_JAVA1 .. details
  • thanks.. details
  • Please help with the configuration parameters for JACKSON to convert JSON into JAVA Objects!. details
  • What kind of data is included in these maps?. details
  • I will recommend URL_http://jackson.codehaus.org/ [Jackson-Object-Mapper] .. details
  • So <beans:bean class="org.springframework.web.servlet.view.json.MappingJacksonJsonView" /> and the action method returns new Foo() is the best I can do.. details
  • Jackson is very easy to use.. details
  • Very useful when you are just looking for a couple of properties in the JSON and don't want to write the whole mapping.. details
  • Very useful when you are just looking for a couple of properties in the JSON and don't want to write the whole mapping.. details
  • Thanks for all the pointers, using Jackson might be the simplest solution (reading this URL_http://programmerbruce.blogspot.com/2011/05/deserialize-json - with-jackson-into.html).. details
  • Thanks for all the pointers, using Jackson might be the simplest solution (reading this URL_http://programmerbruce.blogspot.com/2011/05/deserialize-json - with-jackson-into.html).. details
  • EDIT 2: I debugged this more and figured out the following: Serialization/deserialization works fine as long as I do not have a setter that takes an input parameter, like this: CODESNIPPET_JAVA2 .. details
  • Does anyone have any idea why Jackson is trying to deserialize this particular CODETERM3 value into an CODETERM4 (and not into a CODETERM5 )?. details
  • EDIT 3: Changing the setter name to something unrelated to the field name works around the problem.. details
  • Thanks in advance for any insight.. details
  • EDIT 3: Changing the setter name to something unrelated to the field name works around the problem.. details
  • It should work the best in this case (i.e.. details
  • It should work the best in this case (i.e.. details
  • Thanks, right now I saw 4 solutions - spring-json, jackson (delivered with Spring-MVC), FlexJson (delivered with SpringRoo) and gson... After few hours of play with first 3 of them i found that FlexJSON is fastest in setting up, spring-json has best docs and Spring-mvc jackson has working samples on spring svn.. details
  • While this is not clearly documented within Jackson, rationale for IOExceptions is simple: IOExceptions from input sources (and output targets) are thrown as is -- since Jackson itself can not do anything for these, they are thrown as is.. details
  • While this is not clearly documented within Jackson, rationale for IOExceptions is simple: IOExceptions from input sources (and output targets) are thrown as is -- since Jackson itself can not do anything for these, they are thrown as is.. details
  • While this is not clearly documented within Jackson, rationale for IOExceptions is simple: IOExceptions from input sources (and output targets) are thrown as is -- since Jackson itself can not do anything for these, they are thrown as is.. details
  • In fact, fixing the problem, leaded to a working serialization.. details
  • UPDATE I decided to debug through Spring and I found out that Jackson was called correctly and in org.codehaus.jackson.map.ser.StdSerializerProvider the method _findExplicitUntypedSerializer contains the following code: CODESNIPPET_JAVA8 .. details
  • In fact, fixing the problem, leaded to a working serialization.. details
  • Have you thought of trying a different library like Jackson?. details
  • jackson-core-asl-1.7.4.jarjackson-mapper-asl-1.7.4.jar Cheers, Villu .. details
  • Either you don't have the correct Jackson library in your classpath, or you haven't used the CODETERM2 directive.. details
  • Go for it!. details
  • JAX-RS is a java standard, Jackson library is fast and handles circular references and Apache CXF needs only a couple of lines of configuration to setup and start running.. details
  • JAX-RS is a java standard, Jackson library is fast and handles circular references and Apache CXF needs only a couple of lines of configuration to setup and start running.. details
  • The very basic stack that I am thinking of is servlets backed by a JSON framework like Jackson.. details
  • Thanks in advance for your time.. details
  • Check as @joyfun did for the correct version of jackson but also check our headers .... details
  • make sure your have correct jackson version in your classpath .. details
  • One other thing -- it is interesting that there is an overload issue here, since Jackson actually does allow limited overload.. details
  • I agree in that it would be nice if inference was used such that if only one alternative was explicitly indicated, others could be ignored in case of overload ambiguity -- I can add a Jira feature request for this.. details
  • Solution 2: Annotate "case" with @JsonIgnore Whatever you do try to be consistent and don't try to make your application work differently in special occasions.. details
  • Cheers .. details
  • But I can't find a place where it is covered in a simple way.. details
  • I have a bunch of Pojos with one-to-many relations like these created by hbopojogen CODESNIPPET_JAVA1 .. details
  • Thanks, .. details
  • I would recommend using URL_http://jackson.codehaus.org [Jackson] as it is superior to other recommended alternatives when producing JSON, and for XML either: Use a JAXB implementation with JAXB annotations (Jackson can optionally support JAXB annotations as well, so very little overhead of 2 libs) Use URL_https://github.com/FasterXML/jackson-xml-databind [Jackson-xml-databind] module to produce XML using Jackson itself (in format that is usually identical to JAXB produced) I do NOT think that you absolute must use a single library or framework, and the result is often better if you just choose best choice for each separately.. details
  • I would recommend using URL_http://jackson.codehaus.org [Jackson] as it is superior to other recommended alternatives when producing JSON, and for XML either: Use a JAXB implementation with JAXB annotations (Jackson can optionally support JAXB annotations as well, so very little overhead of 2 libs) Use URL_https://github.com/FasterXML/jackson-xml-databind [Jackson-xml-databind] module to produce XML using Jackson itself (in format that is usually identical to JAXB produced) I do NOT think that you absolute must use a single library or framework, and the result is often better if you just choose best choice for each separately.. details
  • I would recommend using URL_http://jackson.codehaus.org [Jackson] as it is superior to other recommended alternatives when producing JSON, and for XML either: Use a JAXB implementation with JAXB annotations (Jackson can optionally support JAXB annotations as well, so very little overhead of 2 libs) Use URL_https://github.com/FasterXML/jackson-xml-databind [Jackson-xml-databind] module to produce XML using Jackson itself (in format that is usually identical to JAXB produced) I do NOT think that you absolute must use a single library or framework, and the result is often better if you just choose best choice for each separately.. details
  • Thanks, this is exactly what I was looking for.. details
  • Thanks!. details
  • For what it is worth, Jackson specifically focuses on reading/writing JSON and data binding; and two things that are out of scope are data validation and transformation.. details
  • For what it is worth, Jackson specifically focuses on reading/writing JSON and data binding; and two things that are out of scope are data validation and transformation.. details
  • I want to go with Jackson because it is much faster than the alternatives, but I like FlexJSON the most.. details
  • I want to go with Jackson because it is much faster than the alternatives, but I like FlexJSON the most.. details
  • It's fantastic when deserialization takes just two or three lines of code, which is entirely possible and very common when using APIs like Gson or Jackson.. details
  • It's fantastic when deserialization takes just two or three lines of code, which is entirely possible and very common when using APIs like Gson or Jackson.. details
  • If type is declared as java.lang.Object, Jackson uses 'natural' mapping which uses Integer if value fits in 32 bits.. details
  • If you can change APIs, then note that Jackson currently has a mechanism for relatively simple polymorphic deserialization.. details
  • The original values of the object are either Strings, Doubles, Longs or Booleans.. details
  • However, during serialization and deserialization Jackson transforms Long values (such as 4) to Integers.. details
  • The output is: {"test":[1.1111111111,1.315143204964E12} What I was looking for: {"test":[1.32E12, 1.11E0]} Any ideas?. details
  • Thanks .. details
  • JACKSON-406 wouldn't exactly address the use case I had in mind (though it would be useful in its own right), but I decided to take a different approach anyway.. details
  • I have a CODETERM1 with the following value: CODESNIPPET_JAVA1 .. details
  • Please verify the client side: Examine your request headers: CODESNIPPET_JAVA1 .. details
  • But if you must use raw Servlet API, then POST contents will be available through request object; get the InputStream, and use a JSON library like Jackson to bind to object: MyBean bean new ObjectMapper().readValue(httpRequest.getInputStream(), MyBean.class); and similarly if you need to return a JSON object, do the reverse: objectMapper.writeValue(httpResponse.getOutputStream(), resultObject); .. details
  • URL_http://wiki.fasterxml.com/JacksonJsonViews [Jackson's-JSON-Views] might be a simpler way of achieving your requirements, especially if you have some flexibility in your JSON format.. details
  • URL_http://wiki.fasterxml.com/JacksonJsonViews [Jackson's-JSON-Views] might be a simpler way of achieving your requirements, especially if you have some flexibility in your JSON format.. details
  • I will also be able to serilize all user objects to JSON like: CODESNIPPET_JAVA3 .. details
  • But I need to do it with Jackson now, since Gson doesn't have support for interfaces.. details
  • If you just wanted to compare simple equality, URL_http://jackson.codehaus.org [Jackson] would make it easy; and just in case this might help it'd be: CODESNIPPET_JAVA1 .. details
  • If you just wanted to compare simple equality, URL_http://jackson.codehaus.org [Jackson] would make it easy; and just in case this might help it'd be: CODESNIPPET_JAVA1 .. details
  • This needs to be performant, so calling CODETERM1 and lowercasing the results is not a good solution.. details
  • I will try this today, hope it works well.. details
  • Benefits of data binding (convenience, very little code to write) are also more noticeable with more complex objects.Jackson also supports other JSON manipulation methods (streaming, tree-based), but I assume your question is most related to automatic data-binding.. details
  • Common challenge with using automatic data-binding is that it can add close coupling between external data format (in JSON) and your object model.. details
  • Instead of using org.json's barebones library as suggested already, consider using data-binding JSON library like URL_http://jackson.codehaus.org [Jackson] or URL_http://code.google.com/p/google-gson/ [GSON] (there are many others as well), in which case you can simplify servlet case (with Jackson) to: new ObjectMapper().writeValue(response.getOutputStream(), array); and that's all you need.. details
  • Instead of using org.json's barebones library as suggested already, consider using data-binding JSON library like URL_http://jackson.codehaus.org [Jackson] or URL_http://code.google.com/p/google-gson/ [GSON] (there are many others as well), in which case you can simplify servlet case (with Jackson) to: new ObjectMapper().writeValue(response.getOutputStream(), array); and that's all you need.. details
  • For example, if my objects tend to have a lot of fields that are not basic types (by basic types I mean things like String or Double), is that an indication that Jackson/JSON would be inappropriate for serializing and deserializing?. details
  • Jackson is also a good option - its used extensively in Spring.. details
  • GSON from google : URL_http://code.google.com/p/google-gson/ [ URL_http://code.google.com/p/google-gson/ ] , or Jackson the library used in spring : URL_http://jackson.codehaus.org/ [ URL_http://jackson.codehaus.org/ ] and I would concur with others suggesting jaxb for XML to pojo, well supported lots of tools : its the standard.. details
  • GSON from google : URL_http://code.google.com/p/google-gson/ [ URL_http://code.google.com/p/google-gson/ ] , or Jackson the library used in spring : URL_http://jackson.codehaus.org/ [ URL_http://jackson.codehaus.org/ ] and I would concur with others suggesting jaxb for XML to pojo, well supported lots of tools : its the standard.. details
  • As I mentioned before without any success.. details
  • Ok, thanks again!.. details
  • Jackson lib seems very cool.. details
  • Sean, thanks anyway.. details
  • But thanks for the two recommendations.. details
  • But thanks for the two recommendations.. details
  • Jackson 1.9 will actually supports deserialization of simple uses of non- static inner classes, see this URL_http://jira.codehaus.org/browse/JACKSON-594 [Jira-entry] .. details
  • I have a class that looks like this: CODESNIPPET_JAVA1 .. details
  • This seems like something that is probably supported but I can't find it (e.g.. details
  • This seems like something that is probably supported but I can't find it (e.g.. details
  • Ideally, the deserialised instance would have an aString property with a value of "string" (i.e.. details
  • Thanks.. details
  • Additionally you could also add a feature request to add simple on/off feature, as this specific thing sounds like it might be useful for others as well.. details
  • I use Jackson to generate JSON objects and write them directly into HTML's tag, like this: CODESNIPPET_JAVA1 .. details
  • Oh, seems like this has been asked before URL_http://stackoverflow.com/questions/6479712/why-is-jackson-wrapping-my- objects-with-an-extra-layer-named-after-the-class [Why-is-Jackson-wrapping-my- objects-with-an-extra-layer-named-after-the-class?]. details
  • How to achieve that?Thanks in advance.. details
  • I have simple resource which should return JSON array, but it returns object in which is array: CODESNIPPET_JAVA1 .. details
  • But I what I need (because it's Jquery UI autocomplete expected): CODESNIPPET_JAVA3 .. details
  • Where JsonObject is simple class with three String atributes (value,id,label).. details
  • If it's not possible or desirable to edit the original class definition to add the @JsonIgnore annotation, a URL_http://wiki.fasterxml.com/JacksonMixInAnnotations [Mix-In] can be used.. details
  • If it's not possible or desirable to edit the original class definition to add the @JsonIgnore annotation, a URL_http://wiki.fasterxml.com/JacksonMixInAnnotations [Mix-In] can be used.. details
  • Any help/ suggestions would be highly appreciated.. details
  • I have a bean with CommonsMultipartFile type field like so: CODESNIPPET_JAVA1 .. details
  • Note that you can use anonymous inner- classes for sub-classing as well.. details
  • Jackson can take in type information during serialization as well, but the issue here is that of how Spring would pass such information.. details
  • Thanks though.. details
  • For a simple solution, I recommend URL_http://jackson.codehaus.org [Jackson] , a Java library for generating and reading JSON with an extension for XML, as it can transform arbitrarily complex XML into JSON with just a few simple lines of code.. details
  • For a simple solution, I recommend URL_http://jackson.codehaus.org [Jackson] , a Java library for generating and reading JSON with an extension for XML, as it can transform arbitrarily complex XML into JSON with just a few simple lines of code.. details
  • For a simple solution, I recommend URL_http://jackson.codehaus.org [Jackson] , as it can transform arbitrarily complex JSON into XML with just a few simple lines of code.. details
  • For a simple solution, I recommend URL_http://jackson.codehaus.org [Jackson] , as it can transform arbitrarily complex JSON into XML with just a few simple lines of code.. details
  • Following is an example of using Jackson to deserialize a corrected version of the JSON into the same Parent/Child class structure in the current version of the question.. details
  • Controller looks like the following: CODESNIPPET_JAVA3 .. details
  • If you can switch libraries, I highly recommend URL_http://jackson.codehaus.org [Jackson] .. details
  • If you can switch libraries, I highly recommend URL_http://jackson.codehaus.org [Jackson] .. details
  • You could submit a change request at URL_http://jira.codehaus.org/browse/JACKSON [ URL_http://jira.codehaus.org/browse/JACKSON ] for Jackson to be enhanced to provide such a feature, though I'm not sure how popular the request would be, and whether it would ever be implemented.. details
  • Thank you.. details
  • Thank you.. details
  • One of my Java Class ( CODETERM1 ) extends an super class ( CODETERM2 ) that is part of an Libary, so I am not able to modify it.. details
  • Jackson JSON mapping of superclass value.. details
  • If this does not work, then you could use other serialization mechanism like Jackson or Gson.. details
  • This allows for very easy deserialization, with just one line of code.. details
  • It's very easy to change this to use a Java array instead.. details
  • I would recommend using a good JSON parser like URL_http://jackson.codehaus.org/ [Jackson] .. details
  • I would recommend using a good JSON parser like URL_http://jackson.codehaus.org/ [Jackson] .. details
  • Nailed it, this worked flawlessly.. details
  • Thanks so much.. details
  • A good and quick introduction can be found URL_http://wiki.fasterxml.com/JacksonInFiveMinutes [here] And a full working example with your actual data: CODESNIPPET_JAVA2 .. details
  • A good and quick introduction can be found URL_http://wiki.fasterxml.com/JacksonInFiveMinutes [here] And a full working example with your actual data: CODESNIPPET_JAVA2 .. details
  • A good and quick introduction can be found URL_http://wiki.fasterxml.com/JacksonInFiveMinutes [here] And a full working example with your actual data: CODESNIPPET_JAVA2 .. details
  • For me the best available.. details
  • Like this: CODESNIPPET_JAVA1 .. details
  • A good and quick introduction can be found URL_http://wiki.fasterxml.com/JacksonInFiveMinutes [here] And a full working example with your actual data: CODESNIPPET_JAVA2 .. details
  • Like this: CODESNIPPET_JAVA1 .. details
  • For me the best available.. details
  • Now, this whole Map juggling also illustrates Bozho's point pretty well, using full binding (by creating a Java class that reflects the content of the JSON data) will work better in the end.. details
  • Now, this whole Map juggling also illustrates Bozho's point pretty well, using full binding (by creating a Java class that reflects the content of the JSON data) will work better in the end.. details
  • The two best options that I know of are: URL_http://jackson.codehaus.org/ [Jackson] URL_http://code.google.com/p/google-gson/ [gson] Using them is a matter of calling one method of the mapper.. details
  • The two best options that I know of are: URL_http://jackson.codehaus.org/ [Jackson] URL_http://code.google.com/p/google-gson/ [gson] Using them is a matter of calling one method of the mapper.. details
  • Finally, Jackson supports JAXB annotations if you must use them (for example, when using JAXB for producing XML).. details
  • So, what I'd like to do is annotate getTeams so that it's never used as a setter but _is_ used as a getter.. details
  • Now this serialises fine, but in deserialization uses getTeams, presumably because Jackson sees a getter with a mutable list and thinks it can use it as a setter.. details
  • Jackson has support for writing out maps so you can do something like: System.out.println(mapper.writeValueAsString(myObject)) instead of writing your own serializer.. details
  • If you get to pick any JSON library you like, URL_http://jackson.codehaus.org [Jackson] is a decent choice.. details
  • If you get to pick any JSON library you like, URL_http://jackson.codehaus.org [Jackson] is a decent choice.. details
  • This works with the latest release of Jackson, and probably also with Jackson versions going back to 1.7.. details
  • I would advise you to look at more modern JSON libraries like Gson or Jackson, because they make life a lot simpler!. details
  • Something like this CODESNIPPET_JAVA1 .. details
  • Thanks.. details
  • Mailing list is working, but for some reason Codehaus archives do not work.. details
  • use jackson to convert json input stream to the map or object URL_http://jackson.codehaus.org/ [ URL_http://jackson.codehaus.org/ ] there are also some other usefull libraries for json, you can google: json java .. details
  • use jackson to convert json input stream to the map or object URL_http://jackson.codehaus.org/ [ URL_http://jackson.codehaus.org/ ] there are also some other usefull libraries for json, you can google: json java .. details
  • And my object model is like: CODESNIPPET_JAVA2 .. details
  • Yes you can!. details
  • I hope it will help someone else.. details
  • Can you point me how can I make the output look like this CODESNIPPET_JAVA3 .. details
  • ); but for async nothing yet that I am aware of.The lib you refer to seems badly named; it does not seem to do real asynchronous processing, but merely allow one to parse sequence of JSON documents (which multiple other libs allow doing as well) If there were people who really wanted this, writing one is not impossible -- for XML there is URL_http://wiki.fasterxml.com/AaltoHome [Aalto] , and handling JSON is quite a bit simpler than XML.For what it is worth, there is actually URL_http://jira.codehaus.org/browse/JACKSON-39 [this-feature-request] to add non-blocking parsing mode for URL_http://jackson.codehaus.org [Jackson] ; but very few users have expressed interest in getting that done (via voting for the feature request).. details
  • ); but for async nothing yet that I am aware of.The lib you refer to seems badly named; it does not seem to do real asynchronous processing, but merely allow one to parse sequence of JSON documents (which multiple other libs allow doing as well) If there were people who really wanted this, writing one is not impossible -- for XML there is URL_http://wiki.fasterxml.com/AaltoHome [Aalto] , and handling JSON is quite a bit simpler than XML.For what it is worth, there is actually URL_http://jira.codehaus.org/browse/JACKSON-39 [this-feature-request] to add non-blocking parsing mode for URL_http://jackson.codehaus.org [Jackson] ; but very few users have expressed interest in getting that done (via voting for the feature request).. details
  • ); but for async nothing yet that I am aware of.The lib you refer to seems badly named; it does not seem to do real asynchronous processing, but merely allow one to parse sequence of JSON documents (which multiple other libs allow doing as well) If there were people who really wanted this, writing one is not impossible -- for XML there is URL_http://wiki.fasterxml.com/AaltoHome [Aalto] , and handling JSON is quite a bit simpler than XML.For what it is worth, there is actually URL_http://jira.codehaus.org/browse/JACKSON-39 [this-feature-request] to add non-blocking parsing mode for URL_http://jackson.codehaus.org [Jackson] ; but very few users have expressed interest in getting that done (via voting for the feature request).. details
  • ); but for async nothing yet that I am aware of.The lib you refer to seems badly named; it does not seem to do real asynchronous processing, but merely allow one to parse sequence of JSON documents (which multiple other libs allow doing as well) If there were people who really wanted this, writing one is not impossible -- for XML there is URL_http://wiki.fasterxml.com/AaltoHome [Aalto] , and handling JSON is quite a bit simpler than XML.For what it is worth, there is actually URL_http://jira.codehaus.org/browse/JACKSON-39 [this-feature-request] to add non-blocking parsing mode for URL_http://jackson.codehaus.org [Jackson] ; but very few users have expressed interest in getting that done (via voting for the feature request).. details
  • There are multiple ways to do this (see " URL_http://wiki.fasterxml.com/JacksonHowToIgnoreUnknown [How-to-ignore- unknown-properties] "; simplest one is to just globally change behavior by: CODESNIPPET_JAVA1 .. details
  • There are multiple ways to do this (see " URL_http://wiki.fasterxml.com/JacksonHowToIgnoreUnknown [How-to-ignore- unknown-properties] "; simplest one is to just globally change behavior by: CODESNIPPET_JAVA1 .. details
  • You get a 415 if Jackson doesn't support serialization of the object.. details
  • Please don't hesitate to vote for its implementation.. details
  • Jackson doesn't currently have any built-in JSON versioning support, like URL_http://sites.google.com/site/gson/gson-user-guide#TOC-Versioning-Support [Gson-does] .. details
  • I know this is not a solution quite yet, but Jackson 1.8 has full support for custom key serializers and deserializers, both via annotations and through Module API.. details
  • If performance matters, there is nothing on Java platform that comes even close to Jackson with respect to performance (see URL_https://github.com/eishay/jvm-serializers [this] , URL_http://www.cowtowncoder.com/blog/archives/2011/01/entry_437.html [this] or URL_http://www.martinadamek.com/2011/02/04/json-parsers-performance-on- android-with-warmup-and-multiple-iterations/ [this] as initial data points).Some newer libraries (such as "json-smart") claim to be lightweight, fast(er), but have no external verification; most often since their own results do not follow URL_http://www.cowtowncoder.com/blog/archives/2011/04/entry_454.html [performance-measurement-best-practices] .. details
  • If performance matters, there is nothing on Java platform that comes even close to Jackson with respect to performance (see URL_https://github.com/eishay/jvm-serializers [this] , URL_http://www.cowtowncoder.com/blog/archives/2011/01/entry_437.html [this] or URL_http://www.martinadamek.com/2011/02/04/json-parsers-performance-on- android-with-warmup-and-multiple-iterations/ [this] as initial data points).Some newer libraries (such as "json-smart") claim to be lightweight, fast(er), but have no external verification; most often since their own results do not follow URL_http://www.cowtowncoder.com/blog/archives/2011/04/entry_454.html [performance-measurement-best-practices] .. details
  • If performance matters, there is nothing on Java platform that comes even close to Jackson with respect to performance (see URL_https://github.com/eishay/jvm-serializers [this] , URL_http://www.cowtowncoder.com/blog/archives/2011/01/entry_437.html [this] or URL_http://www.martinadamek.com/2011/02/04/json-parsers-performance-on- android-with-warmup-and-multiple-iterations/ [this] as initial data points).Some newer libraries (such as "json-smart") claim to be lightweight, fast(er), but have no external verification; most often since their own results do not follow URL_http://www.cowtowncoder.com/blog/archives/2011/04/entry_454.html [performance-measurement-best-practices] .. details
  • I can't say much about Spring-JSON, but I've found Jackson to be an extremely mature and flexible solution.. details
  • It's well integrated with Spring itself; for example, if you have Jackson on the classpath, you get support for JSON with @ResponseBody-annotated methods.. details
  • It's reasonably fast, and has good documentation.. details
  • It's reasonably fast, and has good documentation.. details
  • It's reasonably fast, and has good documentation.. details
  • Of course conditional pros and cons are well seen :) Thanks in advance!. details
  • Works like a charmm .. :bow:.. details
  • Works like a charmm .. :bow:.. details
  • Sounds promising.. let me try!.. details
  • Sounds promising.. let me try!.. details
  • As of version 1.6, Jackson does support circular references.. details
  • I can only accept one answer but again, much appreciated.. details
  • I can only accept one answer but again, much appreciated.. details
  • Thank you Chathuranga, it's not quite what I was looking for but it helped me out.. details
  • Thank you Chathuranga, it's not quite what I was looking for but it helped me out.. details
  • The easiest way to register serializers and deserializers is by URL_http://wiki.fasterxml.com/JacksonFeatureModules [Module-interface] that was added in Jackson 1.7 (and extended in 1.8 to support key serializers/deserializers).. details
  • The easiest way to register serializers and deserializers is by URL_http://wiki.fasterxml.com/JacksonFeatureModules [Module-interface] that was added in Jackson 1.7 (and extended in 1.8 to support key serializers/deserializers).. details
  • In your case it is probably easier to do former.. details
  • Jackson 1.8 will have functionality to allow simple abstract type -> impl type mappings, for what that's worth.. details
  • The jackson data binding documentation ( URL_http://jackson.codehaus.org/DataBindingDeepDive ) indicates that Jackson supports deserialising "Arrays of all supported types" but I can't figure out the exact syntax for this.. details
  • Many thanks.. details
  • The jackson data binding documentation ( URL_http://jackson.codehaus.org/DataBindingDeepDive ) indicates that Jackson supports deserialising "Arrays of all supported types" but I can't figure out the exact syntax for this.. details
  • Many thanks.. details
  • If you don't want to alter the pristine POJO defs with a Jackson annotation, then you can use a CODETERM5 .. details
  • Just in case you hadn't seen it, here's a URL_http://www.cowtowncoder.com/blog/archives/2010/08/entry_409.html [blog- entry] that discusses working with immutable objects and Jackson.. details
  • Jackson 1.8 also finally allows registration of abstract-to-concrete types (see URL_http://jira.codehaus.org/browse/JACKSON-464 [ URL_http://jira.codehaus.org/browse/JACKSON-464 ] for more details) which might be the best option to indicate that 'AddressImpl' is to be used for 'Address'.. details
  • If anyone has a better way to do this please feel free to share and I will gladly accept.. details
  • It works like a champ if I replace CODETERM1 with CODETERM2 in the CODETERM3 class.. details
  • I am sure this is because there is no way for Jackson to resolve Address which is an interface to AddressImpl which is a concrete implementation.. details
  • Has anyone ever gotten this to work, is it even supported?. details
  • I am playing with the Jackson examples and am having some trouble getting deserialization to work with immutable classes and interfaces.. details
  • Has anyone ever gotten this to work, is it even supported?. details
  • @JsonDeserialize is what will be ideal to my problem, as it doesn't require embedding any type info in the JSON.. details
  • @JsonDeserialize is what will be ideal to my problem, as it doesn't require embedding any type info in the JSON.. details
  • @JsonDeserialize is what will be ideal to my problem, as it doesn't require embedding any type info in the JSON.. details
  • Thanks for the answer!. details
  • Thanks for the answer!. details
  • @JsonDeserialize is what will be ideal to my problem, as it doesn't require embedding any type info in the JSON.. details
  • Looks like this is available in Jackson 1.7: URL_http://jira.codehaus.org/browse/JACKSON-163 [ URL_http://jira.codehaus.org/browse/JACKSON-163 ] See last comment.. details
  • Actually, it's even simpler than that: since javascript identifiers can't start with numbers, that's what causes the problem.. details
  • Actually, it's even simpler than that: since javascript identifiers can't start with numbers, that's what causes the problem.. details
  • Just a suggestion, it would be easier to directly deal with simple datatypes and serialize those to JSON and back using Jackson ObjectMapper, rather than deal with raw URL_http://wiki.fasterxml.com/JacksonTreeModel [Jackson- Treemodel] So in your example, you could create a structure of the following type: CODESNIPPET_JAVA1 .. details
  • Just a suggestion, it would be easier to directly deal with simple datatypes and serialize those to JSON and back using Jackson ObjectMapper, rather than deal with raw URL_http://wiki.fasterxml.com/JacksonTreeModel [Jackson- Treemodel] So in your example, you could create a structure of the following type: CODESNIPPET_JAVA1 .. details
  • Hey guys I'm using Jackson to build a custom json object.. details
  • Is the object meant to be passed around like I have done here?. details
  • It seems to work well(and output is correct) but I may be missing the way I use JsonNodeFactory.. details
  • Best way to use Jackson JsonNodeFactory.. details
  • Thanks for any help.. details
  • There is no current facility to do this; would "ability to inject values during deserialization" (see URL_http://jira.codehaus.org/browse/JACKSON-406 [ URL_http://jira.codehaus.org/browse/JACKSON-406 ] ) do this?. details
  • One possibility is to just use @JsonCreator, decorate all parameters with @JsonParameter, and access value from there -- if there is no matching property, you will get null as value.. details
  • If you want to go the other way around and make your objects match the JSON, then you'll need an extra level of indirection like so: CODESNIPPET_JAVA2 .. details
  • Jackson is expecting JSON like this to correspond to your Objects: CODESNIPPET_JAVA1 .. details
  • However, I get an Jackson exception stating that "friend" is an unrecognized field.. details
  • My current class looks like this: CODESNIPPET_JAVA2 .. details
  • But Jackson doesn't have a straightforward way to plug that in--most of the methods I've found (or annotation-based options) use static factory methods.. details
  • Jackson has the handy feature that you can URL_http://www.cowtowncoder.com/blog/archives/2009/07/entry_303.html [specify- custom-constructors-or-static-factory-methods-to-use-when-creating-a-class ,-getting-parameters-from-the-JSON-object] .. details
  • My preferred answer _should_: Be brief!. details
  • I know there are multiple ways to approach this, I'm looking for the simplest one Continue to leverage Jackson's ability to use reflection and interpret URL_http://wiki.fasterxml.com/JacksonAnnotations [data-binding-annotations] for the non-constructor properties, rather than writing a Deserializer that has to be updated every time I add or edit a settable property Should not require me to manually read and buffer the object properties from JSON (i.e.. details
  • I know there are multiple ways to approach this, I'm looking for the simplest one Continue to leverage Jackson's ability to use reflection and interpret URL_http://wiki.fasterxml.com/JacksonAnnotations [data-binding-annotations] for the non-constructor properties, rather than writing a Deserializer that has to be updated every time I add or edit a settable property Should not require me to manually read and buffer the object properties from JSON (i.e.. details
  • For example, I'd like to be able to have Jackson use this JSON to construct and initialize the following class: CODESNIPPET_JAVA1 .. details
  • Shall be cool to add some code sample for some one that came to you post looking for a "convert json to object using jackson".. details
  • Also, there is a Java library called ClassMate ( URL_https://github.com/cowtowncoder/java-classmate ) that does this reliably: problem with sub-classing is resolving of all type variables reliably, so that it works with arbitrary number of subtypes, some partially bound.. details
  • But if you do not absolutely have to use Gson, Jackson does support programmatic creation of types (via TypeFactory methods) and allows what you are trying to achieve.. details
  • The object that produces this JSON looks like this, I'm using the same class on the client side: CODESNIPPET_JAVA2 .. details
  • The whole point of using a mapping technology like Jackson is that you can use Objects (you don't have to parse the JSON yourself).. details
  • Now if you have a Controller method like this: CODESNIPPET_JAVA3 .. details
  • Could anyone in the know point me in the right direction here please, a web page with an example would be great!. details
  • Two most commonly recommended choices are URL_http://jackson.codehaus.org [Jackson] and URL_http://code.google.com/p/google-gson/ [Gson] , and both work nicely to allow you to not only parse and write JSON, but to also bind JSON data directly to and from POJOs.. details
  • Two most commonly recommended choices are URL_http://jackson.codehaus.org [Jackson] and URL_http://code.google.com/p/google-gson/ [Gson] , and both work nicely to allow you to not only parse and write JSON, but to also bind JSON data directly to and from POJOs.. details
  • thanx, adding @JsonSerializer to the dto that should be transformed worked.. details
  • In the serializer, I created a new value dto that was then written to the json output via generator.writeObject(o) - that worked nicely.. details
  • No, nothing special should be needed to enable it.. details
  • GAE might cause some issues, with respect to instantiating that class; whether due to recognizing annotations, or by use of Class.newInstance().. details
  • GAE might cause some issues, with respect to instantiating that class; whether due to recognizing annotations, or by use of Class.newInstance().. details
  • Cheers Nik .. details
  • Here's what the response looks like: CODESNIPPET_JAVA9 .. details
  • I'm pretty sure you only have to register URL_http://static.springsource.org/spring/docs/3.0.x/javadoc-api/org/springfra mework/http/converter/json/MappingJacksonHttpMessageConverter.html [CODETERM1] (the easiest way to do that URL_http://static.springsource.org/spring/docs/current/spring-framework- reference/html/mvc.html#mvc-config-enable [is-through-CODETERM2-in-XML-or- CODETERM3-in-Java] ) See: URL_http://forum.springsource.org/archive/index.php/t-89618.html [this-forum-post] and URL_http://static.springsource.org/spring/docs/current/spring-framework-reference/html/validation.html#format-configuring-formatting-mvc [7.6.5-Configuring-Formatting-in-Spring-MVC] Here's a working example: Maven POM** CODESNIPPET_JAVA1 .. details
  • I'm pretty sure you only have to register URL_http://static.springsource.org/spring/docs/3.0.x/javadoc-api/org/springfra mework/http/converter/json/MappingJacksonHttpMessageConverter.html [CODETERM1] (the easiest way to do that URL_http://static.springsource.org/spring/docs/current/spring-framework- reference/html/mvc.html#mvc-config-enable [is-through-CODETERM2-in-XML-or- CODETERM3-in-Java] ) See: URL_http://forum.springsource.org/archive/index.php/t-89618.html [this-forum-post] and URL_http://static.springsource.org/spring/docs/current/spring-framework-reference/html/validation.html#format-configuring-formatting-mvc [7.6.5-Configuring-Formatting-in-Spring-MVC] Here's a working example: Maven POM** CODESNIPPET_JAVA1 .. details
  • And it seems to work!. details
  • I don't know what exactly did the trick, but it works... .. details
  • hey hi i didnt find in it can you give me link.. details
  • I have polymorphic types and deserializing from JSON to POJO works.. details
  • I want to receive and emit JSON objects from Java classes like the following: CODESNIPPET_JAVA1 .. details
  • GSON is not particularly fast, but the Jackson library can almost compete with most binary serializers (Jackson is 2-4x faster than GSON in most situations and 10-20x faster on UTF-8 because it has special code for UTF-8).. details
  • With Protocol Buffers, you specify message structures declaratively and the library will take care of the structural validation for you (though there will still be things that you need to validate manually).. details
  • GSON is not particularly fast, but the Jackson library can almost compete with most binary serializers (Jackson is 2-4x faster than GSON in most situations and 10-20x faster on UTF-8 because it has special code for UTF-8).. details
  • To get your code to print something closer to your input value, you need to use Jackson to write it back out with something like: CODESNIPPET_JAVA1 .. details
  • This can write the object however it pleases, including using the method from CODETERM5 .. details
  • I need to now "parse" this output into something like an array of URL_http://json.org/javadoc/org/json/JSONObject.html [JSONObject] (I can make use of any JSON library like Jackson, etc.. details
  • (Change the format, remove some key value pairs, etc.). details
  • In this case, any suggestions on how to parse this output into some kind of holder objects that I can use to read/modify key value pairs?. details
  • I don't have the json commands at compile time but do know that these commands will always end in a printjson EDIT -** So to simplify, for example, I am looking for a way to parse the following output into Java Objects - (The individual key/value pairs are not known at compile time) CODESNIPPET_JAVA1 .. details
  • Jackson can, as you can see; it just uses standard mechanism.. details
  • I'm passing a Class as a return type, but i have been hoping that Jackson can handle the conversion.. details
  • Not sure if this is a perfect solution, but it works for me.. details
  • Second, if you want truly custom deserialization process, you can check out URL_http://wiki.fasterxml.com/JacksonHowToCustomDeserializers [ URL_http://wiki.fasterxml.com/JacksonHowToCustomDeserializers ] which explains how to register custom deserializers.. details
  • Second, if you want truly custom deserialization process, you can check out URL_http://wiki.fasterxml.com/JacksonHowToCustomDeserializers [ URL_http://wiki.fasterxml.com/JacksonHowToCustomDeserializers ] which explains how to register custom deserializers.. details
  • Thank you.. details
  • I'd like to be able to implement instantiation of the bean by calling external factory.. details
  • Please note that I'm not concerned about creation of simple/scalar values such as strings or numbers, only the beans are in the area of my interest.. details
  • plz check URL_https://github.com/mongodb/mongo-java-driver/downloads [mongo- java-driver] , i thank it should contain the same facilities also look at URL_https://github.com/michel-kraemer/bson4jackson [bson4jackson] .. details
  • Thanks.. details
  • Jackson JSON not serializing Joda DateTime correctly.. details
  • If you use URL_http://jackson.codehaus.org/ [Jackson] to parse the JSON input into a Map, you can quickly access the type information.. details
  • If you use URL_http://jackson.codehaus.org/ [Jackson] to parse the JSON input into a Map, you can quickly access the type information.. details
  • What I really need is some way to peek into the JSON string, determine the request type and then call the appropriate readValue() method - something like this: CODESNIPPET_JAVA3 .. details
  • Or, just set a flag in sub-class that you can check if you prefer.. details
  • Also CODETERM3 throws an exception for duplicates that doesn't give me an answer - is CODETERM4 well-formed according to standard.. details
  • Also CODETERM3 throws an exception for duplicates that doesn't give me an answer - is CODETERM4 well-formed according to standard.. details
  • Does JSON format support duplicated properties at all?. details
  • If I remove this, everything works perfectly.. details
  • Thanks,Sri .. details
  • Ya i was just wondering if there's any other way to do that like an annotation.. details
  • There are multiple ways to resolve this; from making fields public, to adding @JsonProperty for each, or just changing minimum visibility jackson uses for detecting property fields (@JsonAutoDetect annotation).. details
  • In my personal opinion one should either follow the standard, or define new formats -- HTML is a good example of rat holes one gets to when trying to support things that are "almost but not quite" valid.. details
  • There is no end to tweaks, and interoperability suffers: since there is no standard, all implementations support some non-compatible subsets of features and constructs.. details
  • In my personal opinion one should either follow the standard, or define new formats -- HTML is a good example of rat holes one gets to when trying to support things that are "almost but not quite" valid.. details
  • stuff that is NOT JSON, but is close enough that it can be supported) can be found from: URL_http://wiki.fasterxml.com/JacksonFeaturesNonStandard [ URL_http://wiki.fasterxml.com/JacksonFeaturesNonStandard ] From your list, (2) and (3) can be done (plus couple of other things not listed, like commnets).. details
  • stuff that is NOT JSON, but is close enough that it can be supported) can be found from: URL_http://wiki.fasterxml.com/JacksonFeaturesNonStandard [ URL_http://wiki.fasterxml.com/JacksonFeaturesNonStandard ] From your list, (2) and (3) can be done (plus couple of other things not listed, like commnets).. details
  • There is no end to tweaks, and interoperability suffers: since there is no standard, all implementations support some non-compatible subsets of features and constructs.. details
  • JSONObject provides following allowances: The constructors are more forgiving in the texts they will accept: 1.. details
  • Values can be followed by ; (semicolon) as well as by , (comma).. details
  • The most interesting for me is 3rd point.. details
  • Keys can be followed by or as well as by :.. details
  • Make Jackson more friendly for input JSON.. details
  • The most interesting for me is 3rd point.. details
  • I couldn't find a nice way to do this, so I did switch to URL_http://jackson.codehaus.org/ [Jackson] instead.. details
  • I couldn't find a nice way to do this, so I did switch to URL_http://jackson.codehaus.org/ [Jackson] instead.. details
  • I'm guessing CODETERM1 has a list of attributes, each pointing to their respective entity.. details
  • Then to prove it works, serializing and deserializing an instance of class C: CODESNIPPET_JAVA3 .. details
  • What I did there was to define a key serializer that serializes named classes as there JSON serialization, like this: CODESNIPPET_JAVA2 .. details
  • I am a complete newbie with Jackson, but the following works for me.. details
  • ok now it work but i have to use doublequote like this: String json "{\"code\":\":)\",\"img\":\"!. details
  • Works exactly like I want to.. details
  • Maybe he is assuming Jackson somehow telepathically figures out expected type... what actually happens is that type Object.class has special handling with Jackson: it will create "natural" mapping to Maps, Lists and wrapper types (which are all Objects obviously).. details
  • Object doesn't have any properties for the key "a", so how can it be read in like that?. details
  • Thanks, Mike.. details
  • Thanks, Mike.. details
  • We have been using URL_http://jackson.codehaus.org/ [Jackson] and it is simple and functional and we got it setup and in production rather quickly.. details
  • And the URL_http://wiki.fasterxml.com/JacksonInFiveMinutes [tutorial] is quick is good as well.. details
  • And the URL_http://wiki.fasterxml.com/JacksonInFiveMinutes [tutorial] is quick is good as well.. details
  • And the URL_http://wiki.fasterxml.com/JacksonInFiveMinutes [tutorial] is quick is good as well.. details
  • We have been using URL_http://jackson.codehaus.org/ [Jackson] and it is simple and functional and we got it setup and in production rather quickly.. details
  • And the URL_http://wiki.fasterxml.com/JacksonInFiveMinutes [tutorial] is quick is good as well.. details
  • What is the easiest way to tell it about some default implementation of an abstract class, like CODESNIPPET_JAVA1 .. details
  • Finally, if you go the 'pure Servlets' route, you may still find reading/creating JSON a lot easier using a parser library like URL_http://jackson.codehaus.org/ [Jackson] .. details
  • Finally, if you go the 'pure Servlets' route, you may still find reading/creating JSON a lot easier using a parser library like URL_http://jackson.codehaus.org/ [Jackson] .. details
  • If you use the URL_http://wiki.fasterxml.com/JacksonTreeModel [Jackson-Tree- Model] mode of operation, you should get something like the map-based results you're looking for.. details
  • It would be especially easy if you're not required to use that CODETERM1 annotation, as Jackson provides a suite of URL_http://wiki.fasterxml.com/JacksonAnnotations [its-own-annotations] which do exactly what you need - (see the CODETERM2 annotation).. details
  • I haven't used it (yet) but URL_http://jackson.codehaus.org/ [Jackson] looks like it'll do what you need.. details
  • It would be especially easy if you're not required to use that CODETERM1 annotation, as Jackson provides a suite of URL_http://wiki.fasterxml.com/JacksonAnnotations [its-own-annotations] which do exactly what you need - (see the CODETERM2 annotation).. details
  • I haven't used it (yet) but URL_http://jackson.codehaus.org/ [Jackson] looks like it'll do what you need.. details
  • If you use the URL_http://wiki.fasterxml.com/JacksonTreeModel [Jackson-Tree- Model] mode of operation, you should get something like the map-based results you're looking for.. details
  • The problem is, the JSON objects might change and have new fields added while the application is published, but currently it will break even when a simple String field is added, which can safely be ignored.. details
  • A global ignore would be great.. details
  • The problem is, the JSON objects might change and have new fields added while the application is published, but currently it will break even when a simple String field is added, which can safely be ignored.. details
  • when enabling string- value back references (if there are many repeated string values, like enumerated values).. details
  • when enabling string- value back references (if there are many repeated string values, like enumerated values).. details
  • Very good point about Smile -- it can be compact, esp.. details
  • Very good point about Smile -- it can be compact, esp.. details
  • and person.saveToFileRaw looks like CODESNIPPET_JAVA4 .. details
  • Thanks I had thought about it but I was not sure if the variables were legal or not.. details
  • Hey Jason.. details
  • No luck; Jackson still adds the wrapper object.. details
  • to a json array like this: CODESNIPPET_JAVA2 .. details
  • This works out of the box, but I'd now like to not use the default serialization for the CODETERM1 .. details
  • Specifically, I'd like to write out an object that includes a combination of the values and some additional calculations based on the CODETERM2 .. details
  • I'd like to convert a java collection like this CODESNIPPET_JAVA1 .. details
  • It's doable, but I woudl prefer to simply define how JUST the DTOs are serialized.. details
  • Thanks.. details
  • Given a simple entity class like this CODESNIPPET_JAVA1 .. details
  • I'm just curious if there is a way to customize the deserialization just a field at a time in order to, for example, custom parse a particular date format, or read an array of values into a custom entity, etc.. details
  • If there's not, then would something like this be possible in the future?. details
  • Skaffman, I've tried registering a JAXB annotation introspector following the spec ( URL_http://wiki.fasterxml.com/JacksonJAXBAnnotations ) but I don't see how to dynamically plug that into my restful framework (RESTEasy).. details
  • Skaffman, I've tried registering a JAXB annotation introspector following the spec ( URL_http://wiki.fasterxml.com/JacksonJAXBAnnotations ) but I don't see how to dynamically plug that into my restful framework (RESTEasy).. details
  • Skaffman, I've tried registering a JAXB annotation introspector following the spec ( URL_http://wiki.fasterxml.com/JacksonJAXBAnnotations ) but I don't see how to dynamically plug that into my restful framework (RESTEasy).. details
  • Skaffman, I've tried registering a JAXB annotation introspector following the spec ( URL_http://wiki.fasterxml.com/JacksonJAXBAnnotations ) but I don't see how to dynamically plug that into my restful framework (RESTEasy).. details
  • @Colin: I just said that Jackson supports JAXB annotations as well.. details
  • Thanks for the response.. details
  • Also, even without knowing this, users often ditch jettison as soon as they have tried Jackson ("pure" JSON) approach, and I think CXF also supports Jacksons (Jersey and RESTeasy do for sure).. details
  • Also, even without knowing this, users often ditch jettison as soon as they have tried Jackson ("pure" JSON) approach, and I think CXF also supports Jacksons (Jersey and RESTeasy do for sure).. details
  • For Jackson specifically, your best bet would to first bind to a JsonNode or Object, like: CODESNIPPET_JAVA1 .. details
  • I like URL_http://jackson.codehaus.org/ [Jackson] for JSON, and URL_http://xstream.codehaus.org/ [XStream] for XML.. details
  • I like URL_http://jackson.codehaus.org/ [Jackson] for JSON, and URL_http://xstream.codehaus.org/ [XStream] for XML.. details
  • Update: @radai suggests the Simple XML library, which looks pretty interesting.. details
  • Update: @radai suggests the Simple XML library, which looks pretty interesting.. details
  • Jackson is very fast.. details
  • The mentioned PojoDeserializer takes {"field": "value"} json string and deserializes it to the Pojo instance.. details
  • Now let's have this simple POJO: CODESNIPPET_JAVA2 .. details
  • I'd like to use it in a similar fashion as in the previous example: CODESNIPPET_JAVA3 .. details
  • Have a look at URL_http://jackson.codehaus.org/ [Jackson] , it can do this easily enough, e.g.. details
  • Have a look at URL_http://jackson.codehaus.org/ [Jackson] , it can do this easily enough, e.g.. details
  • But there isn't yet a clean externalized way to add naming strategies (that has been requested by multiple users).. details
  • Can anyhone please help me how to achieve "[int]" instead of "[I"?. details
  • i have a task serializing a class like RPC message to JSONusing Jackson in Java.. details
  • this way the json representation should correctly deserialize to the WrapperCountry object and you can retrieve country from that.. details
  • This is the correct behavior of Jackson, the actual json representation of Country object should be without the top level country.. details
  • The class is like: CODESNIPPET_JAVA1 .. details
  • Thanks in advance.. details
  • From what I remember Jackson is used to convert json to java classes - it is probably expecting the first object is reads to be a map, like CODESNIPPET_JAVA1 .. details
  • Some thoughts: If you want to quote/escape all Strings, you could define custom String serializer You could first serialize as JSON tree (JsonNode) -- ObjectMapper.convertValue(pojo, JsonNode.class) -- modify it, then serialize to JSON (ObjectMapper.writeValue(intermediateTree)) If you want a flexible system where you can add annotation for fields that need special handling, you could use Jackson 1.7 feature of ContextualSerializers; custom serializer that can reconfigure itself based on annotations.. details
  • Instead of doing that myself, I bet the jackson converter needs to do that as well.. details
  • The standard implementation (StdSerializerProvider) is getting called by the ObjectMapper.. details
  • How to html escape values by Jackson generator.. details
  • All great.. details
  • Any thoughts are appreciated!. details
  • But now I want to html escape** String values of my (any kind of) objects in order to prevent XSS.. details
  • So somewhere there I want to override/influence the method that is responsible for setting values.. details
  • All great.. details
  • Thanks Klaus Detailed solution** (1) Implement a CODETERM1 for Jacksons CODETERM2 which creates an ObjectMapper that will not use annotations.. details
  • They will in turn delegate to a JSON processor like URL_http://jackson.codehaus.org/ [Jackson] .. details
  • They will in turn delegate to a JSON processor like URL_http://jackson.codehaus.org/ [Jackson] .. details
  • There is no support currently for builder pattern, although it has been requested quite a while ago (and finally Jira issue URL_http://jira.codehaus.org/browse/JACKSON-469 [ URL_http://jira.codehaus.org/browse/JACKSON-469 ] was filed) -- it is something that may be added for 1.8 release if there is enough demand (make sure to vote at Jira!).. details
  • But I think it would be great addition.. details
  • and is constructed like this: CODETERM1 Is there a way to get key-value pairs from Jackson in order to construct the Address myself?. details
  • I'd like Jackson to deserialize a class with the following constructor: CODESNIPPET_JAVA1 .. details
  • Jackson : field serialization format depending on other field value.. details
  • If you want to use ObjectMapper you probably want to start with defaults, and try to change things according to what you want to change, and not by starting with a set of configuration overrides (for example: you are disabling getter/setter auto-detection, which doesn't seem like something you should be doing).. details
  • It actually looks like not only are you using CXF, you are not using Jackson's json serialization.. details
  • Yes, probably a best practice, but as I wrote my objects are already JSON strings and I just want to write them out with the correct mime type.. details
  • Thanks!joe .. details
  • Hitting URL_http://myserver/.../foo.json [ URL_http://myserver/.../foo.json ] puts out some pretty json: CODESNIPPET_JAVA2 .. details
  • Here are more good choices: URL_http://wiki.fasterxml.com/JacksonHome [Jackson] -- powerful data binding (JSON to/from POJOs), streaming (ultra fast), tree model (convenient for untyped access) URL_http://flexjson.sourceforge.net/ [Flex-JSON] -- highly configurable serialization EDIT (Aug/2013): One more to consider: URL_http://code.google.com/p/genson/ [Genson] -- functionality similar to Jackson, aimed to be easier to configure by developer .. details
  • Otherwise you just need to convert JSON to CODETERM1 and you can do this with URL_http://api.mongodb.org/java/current/com/mongodb/util/JSON.html#parse% 28java.lang.String%29 [JSON.parse()] method or any other JSON-mapping library like URL_http://jackson.codehaus.org/ [Jackson] .. details
  • Otherwise you just need to convert JSON to CODETERM1 and you can do this with URL_http://api.mongodb.org/java/current/com/mongodb/util/JSON.html#parse% 28java.lang.String%29 [JSON.parse()] method or any other JSON-mapping library like URL_http://jackson.codehaus.org/ [Jackson] .. details
  • There's a good explanation of how to do this URL_http://wiki.fasterxml.com/JacksonPolymorphicDeserialization [here] .. details
  • There's a good explanation of how to do this URL_http://wiki.fasterxml.com/JacksonPolymorphicDeserialization [here] .. details
  • I have JSON like the following: CODESNIPPET_JAVA1 .. details
  • Thanks!. details
  • However, I'd like each object to be of subclass One or Two, depending on the 'kind' value.. details
  • How can I accomplish this?. details
  • In my code, I'd like to create an ArrayList of some class A, which would contain these objects.. details
  • If you can figure out a simple test case, you can file a Jira request-for-enchancement at URL_http://jira.codehaus.org/browse/JACKSON [Jackson-Jira] to get escaping added (and ensure parser can unescape the usual backslash version).. details
  • Seems like Jackson with CODETERM1 in certain cases produces such output that it can't read itself even with CODETERM2 on.. details
  • However if you don't expose it outside your application(s) and care about size much you could parse/generate binary format like Jackson's URL_http://wiki.fasterxml.com/JacksonBinaryFormat [Smile] .. details
  • However if you don't expose it outside your application(s) and care about size much you could parse/generate binary format like Jackson's URL_http://wiki.fasterxml.com/JacksonBinaryFormat [Smile] .. details
  • and the object mapper I use both for reading and writing the values is: CODESNIPPET_JAVA3 .. details
  • It seems like Jersey is still using JacksonJsonProvider to handle the deserialization somehow.. details
  • Thanks!. details
  • Redefine your class like this: CODESNIPPET_JAVA1 .. details
  • Thanks for the advice.. details
  • It seems like it should be able to take its own output as input again.. details
  • URL_http://jackson.codehaus.org/ [Jackson] has built-in JAX-RS support.. details
  • URL_http://jackson.codehaus.org/ [Jackson] has built-in JAX-RS support.. details
  • This is useful if you use something like Jackson for your JSON parsing (as I do).. details
  • For what it's worth, you can also use mix-in annotations ( URL_http://wiki.fasterxml.com/JacksonMixInAnnotations ) to keep annotations separate; not more light-weight but bit cleaner.. details
  • For what it's worth, you can also use mix-in annotations ( URL_http://wiki.fasterxml.com/JacksonMixInAnnotations ) to keep annotations separate; not more light-weight but bit cleaner.. details
  • The client is a jQuery UI widget (the autocomplete widget, not that it matters) that expects a simple array and I don't want to modify the widget itself.. details
  • There are some libraries to parse json string into java objects: URL_http://code.google.com/p/google-gson/ [google-gson] URL_http://www.json.org/java/ [ URL_http://www.json.org/java/ ] URL_http://code.google.com/p/json-simple/ [json-simple] URL_http://jackson.codehaus.org/ [jackson] This URL_http://stackoverflow.com/questions/338586/a-better-java-json-library [link] is very usefull!. details
  • There are some libraries to parse json string into java objects: URL_http://code.google.com/p/google-gson/ [google-gson] URL_http://www.json.org/java/ [ URL_http://www.json.org/java/ ] URL_http://code.google.com/p/json-simple/ [json-simple] URL_http://jackson.codehaus.org/ [jackson] This URL_http://stackoverflow.com/questions/338586/a-better-java-json-library [link] is very usefull!. details
  • There are some libraries to parse json string into java objects: URL_http://code.google.com/p/google-gson/ [google-gson] URL_http://www.json.org/java/ [ URL_http://www.json.org/java/ ] URL_http://code.google.com/p/json-simple/ [json-simple] URL_http://jackson.codehaus.org/ [jackson] This URL_http://stackoverflow.com/questions/338586/a-better-java-json-library [link] is very usefull!. details
  • There are some libraries to parse json string into java objects: URL_http://code.google.com/p/google-gson/ [google-gson] URL_http://www.json.org/java/ [ URL_http://www.json.org/java/ ] URL_http://code.google.com/p/json-simple/ [json-simple] URL_http://jackson.codehaus.org/ [jackson] This URL_http://stackoverflow.com/questions/338586/a-better-java-json-library [link] is very usefull!. details
  • Thanks... details
  • Anyway, I tried your approach and it works like a charm!. details
  • I strongly recommend ditching Jettison completely, and using the URL_http://docs.jboss.org/resteasy/docs/1.1.GA/userguide/html/json.html [RestEasy-Jackson-support] instead.. details
  • I strongly recommend ditching Jettison completely, and using the URL_http://docs.jboss.org/resteasy/docs/1.1.GA/userguide/html/json.html [RestEasy-Jackson-support] instead.. details
  • It also URL_http://docs.codehaus.org/display/JACKSON/Jackson+JAXB+Support [supports- JAXB-annotations] just like Jettison.. details
  • @btiernay: Looks like it, yeah.. details
  • Cheers .. details
  • For what it's worth, there is a URL_http://jira.codehaus.org/browse/JACKSON-178 [Jira-issue] to support pluggable strategies; voting for it might help convince developers to add support.. details
  • For what it is worth, URL_http://jackson.codehaus.org [Jackson] has partial update out-of-the-box: CODESNIPPET_JAVA1 .. details
  • For what it is worth, URL_http://jackson.codehaus.org [Jackson] has partial update out-of-the-box: CODESNIPPET_JAVA1 .. details
  • A couple people have suggested overriding different classes as a way to accomplish my goal.. details
  • A couple people have suggested overriding different classes as a way to accomplish my goal.. details
  • EDIT: It looks like there's not a clean way to do this externally.. details
  • I'm currently working on using Jackson to automatically handle the seralization/deserialization of JSON using the CODETERM1 and CODETERM2 annotations.. details
  • I have gotten Jackson working, so I've got a starting point.. details
  • You might be interested in URL_https://github.com/michel-kraemer/bson4jackson [bson4jackson] project, which allows you to use Jackson data binding to work with BSON (create POJOs from BSON, write as BSON) -- especially since Jackson also work with JSON.. details
  • With Jackson you can either work with full POJOs (declare structure you want) or with simple Maps, Lists and so on.. details
  • You got it, but works if I leave XML beans out.. details
  • So the solution I suggested, using a Java JSON parser, like Jackson, could be definitivly helpful to create the Java objects.. details
  • So you may want to consider other libraries: I would recommend URL_http://jackson.codehaus.org [Jackson] , Gson also works.. details
  • So you may want to consider other libraries: I would recommend URL_http://jackson.codehaus.org [Jackson] , Gson also works.. details
  • I guess my solution above is the best I can get if I don't want to change the structure of the Foo object.. details
  • For convenient binding to/from POJOs I would recommend URL_http://wiki.fasterxml.com/JacksonInFiveMinutes [Jackson] .. details
  • For convenient binding to/from POJOs I would recommend URL_http://wiki.fasterxml.com/JacksonInFiveMinutes [Jackson] .. details
  • Can someone help please?. details
  • And yes, reuse is safe, as per: URL_http://wiki.fasterxml.com/JacksonBestPracticeThreadSafety .. details
  • And yes, reuse is safe, as per: URL_http://wiki.fasterxml.com/JacksonBestPracticeThreadSafety .. details
  • And yes, reuse is safe, as per: URL_http://wiki.fasterxml.com/JacksonBestPracticeThreadSafety .. details
  • And yes, reuse is safe, as per: URL_http://wiki.fasterxml.com/JacksonBestPracticeThreadSafety .. details
  • That works.. details
  • That works.. details
  • All there is to it: write a simple method to perform the HTTP GET to the JSON web service and return a String (I used URL_http://hc.apache.org/httpclient-3.x/ [Apache-HttpClient] ) pass the String to Jackson to deserialize into a Java object (see URL_http://wiki.fasterxml.com/JacksonInFiveMinutes [CODETERM1] ) This assumes you already know what kind of object you expect to get back from a given JSON web service.. details
  • All there is to it: write a simple method to perform the HTTP GET to the JSON web service and return a String (I used URL_http://hc.apache.org/httpclient-3.x/ [Apache-HttpClient] ) pass the String to Jackson to deserialize into a Java object (see URL_http://wiki.fasterxml.com/JacksonInFiveMinutes [CODETERM1] ) This assumes you already know what kind of object you expect to get back from a given JSON web service.. details
  • My question is : is there any "magic" annotation that can make Jackson recognize the map keys as pojo property names, and assign the map values to the pojo property values ?. details
  • Thanks ;-) Philippe .. details
  • For what it's worth, there is URL_https://github.com/FasterXML/jackson-module- hibernate [Jackson-Hibernate-module] project that just started, and which should solve this problem and hopefully others as well.Project is related to Jackson project, although not part of core source.. details
  • This is mostly to allow simpler release process; it will require Jackson 1.7 as that's when Module API is being introduced.. details
  • For what it's worth, there is URL_https://github.com/FasterXML/jackson-module- hibernate [Jackson-Hibernate-module] project that just started, and which should solve this problem and hopefully others as well.Project is related to Jackson project, although not part of core source.. details
  • I have done the same thing for all the other UserAccount subclasses as well.. details
  • I wish I could help with registration; but with respect to annotations, I don't think you should need any for Jackson to try to deserialize value.. details
  • Also: Jackson works fine on Android, if you don't mind using it over Gson.. details
  • I'm running into a problem with Wink and Jackson.. details
  • I'm running into a problem with Wink and Jackson.. details
  • It's clear that the data is getting across just fine, but the problem seems to lie with the fact that the JacksonJsonProvider class is not registered with Wink client.. details
  • Thanks myself ;-) .. details
  • But as RESTEasy support also the Jackson Framework, I switched to Jackson and everything thing is ok now.. details
  • Btw, one other good Java JSON library you might want to consider using is URL_http://jackson.codehaus.org [Jackson] ; however, for this particular example all libraries you mention should work.. details
  • Btw, one other good Java JSON library you might want to consider using is URL_http://jackson.codehaus.org [Jackson] ; however, for this particular example all libraries you mention should work.. details
  • Thanks Staxman, Yes, We are using Jackson JSON provider.. details
  • There is no automated functionality for this (as far as I know), but this is a somewhat often requested feature; there is this Jira RFE: URL_http://jira.codehaus.org/browse/JACKSON-132 [ URL_http://jira.codehaus.org/browse/JACKSON-132 ] that sounds like what you are looking for.. details
  • How can I set the value of CODETERM1 from JSON to the CODETERM2 field in the CODETERM3 Java object?. details
  • and I want to bind it into a Java object, like: CODESNIPPET_JAVA2 .. details
  • I've tried annotating the field with CODETERM4 , but it doesn't work like that.. details
  • Thanks for your answer!.. details
  • Thanks for your answer!.. details
  • Jackson: Ignore Json configuration value.. details
  • URL_http://jackson.codehaus.org/1.4.2/javadoc/org/codehaus/jackson/map/ObjectM apper.html [ObjectMapper] from CodeHaus The code looks like this - super simple: CODESNIPPET_JAVA1 .. details
  • URL_http://jackson.codehaus.org/1.4.2/javadoc/org/codehaus/jackson/map/ObjectM apper.html [ObjectMapper] from CodeHaus The code looks like this - super simple: CODESNIPPET_JAVA1 .. details
  • I'd recommend JAXB + Jackson.. details
  • Also, Jackson 1.6 has support for URL_http://wiki.fasterxml.com/JacksonFeatureBiDirReferences [handling-bi- directional-references] ... which seems like what you are looking for ( URL_http://jackson-users.ning.com/profiles/blogs/using-bidirectional-feature [this-blog-entry] also mentions the feature) And as of July 2011, there is also " URL_https://github.com/FasterXML/jackson- module-hibernate [jackson-module-hibernate] " which might help in some aspects of dealing with Hibernate objects, although not necessarily this particular one (which does require annotations).. details
  • Also, Jackson 1.6 has support for URL_http://wiki.fasterxml.com/JacksonFeatureBiDirReferences [handling-bi- directional-references] ... which seems like what you are looking for ( URL_http://jackson-users.ning.com/profiles/blogs/using-bidirectional-feature [this-blog-entry] also mentions the feature) And as of July 2011, there is also " URL_https://github.com/FasterXML/jackson- module-hibernate [jackson-module-hibernate] " which might help in some aspects of dealing with Hibernate objects, although not necessarily this particular one (which does require annotations).. details
  • URL_http://jackson.codehaus.org/ [Jackson] is a good one that is also used by Spring MVC.. details
  • URL_http://jackson.codehaus.org/ [Jackson] is a good one that is also used by Spring MVC.. details
  • And to add some information, URL_http://jackson.codehaus.org [Jackson] works very well with all kinds of data including basic Maps and Lists: CODESNIPPET_JAVA1 .. details
  • And to add some information, URL_http://jackson.codehaus.org [Jackson] works very well with all kinds of data including basic Maps and Lists: CODESNIPPET_JAVA1 .. details
  • Alternatively you may be able to sub-class HashMap into your own type (MyEntityMap extends HashMap), since then type information can be inferred from generic super type; and passing MyEntityMap.class would give type information that most JSON libraries can use (Jackson and GSON at least).. details
  • Perhaps its support was not enabled: URL_http://wiki.fasterxml.com/JacksonJAXBAnnotations .. details
  • Perhaps its support was not enabled: URL_http://wiki.fasterxml.com/JacksonJAXBAnnotations .. details
  • Otherwise, URL_http://jackson.codehaus.org [Jackson] and URL_http://code.google.com/p/google-gson/ [GSON] at least have full bean serialization as well as allowing custom serializers.. details
  • Otherwise, URL_http://jackson.codehaus.org [Jackson] and URL_http://code.google.com/p/google-gson/ [GSON] at least have full bean serialization as well as allowing custom serializers.. details
  • But sending Accept: application/json actually works, and jackson mapper kicks in.. details
  • Now: simple solution for most JAX-RS implementations is to not use JAXB annotation based approach at all, but a JSON-specific serializer, such as URL_http://jackson.codehaus.org/ [Jackson] 's JacksonJsonProvider (Jackson can actually use JAXB annotations, too).. details
  • Now: simple solution for most JAX-RS implementations is to not use JAXB annotation based approach at all, but a JSON-specific serializer, such as URL_http://jackson.codehaus.org/ [Jackson] 's JacksonJsonProvider (Jackson can actually use JAXB annotations, too).. details
  • works flawlessly!.. details
  • Manually parsing the json works, so Jackson must be in the classpath: CODESNIPPET_JAVA2 .. details
  • CODETERM1 in Jackson seem to be thread safe.. details
  • Thanks.. details
  • Thanks.. details
  • It has a URL_http://wiki.fasterxml.com/JacksonDataBinding [databinding- solution] (like Gson) and a URL_http://wiki.fasterxml.com/JacksonTreeModel [tree-model-view] (like JSONObject) CODESNIPPET_JAVA1 .. details
  • It has a URL_http://wiki.fasterxml.com/JacksonDataBinding [databinding- solution] (like Gson) and a URL_http://wiki.fasterxml.com/JacksonTreeModel [tree-model-view] (like JSONObject) CODESNIPPET_JAVA1 .. details
  • Note that URL_http://wiki.fasterxml.com/JacksonHome [Jackson] fixes these issues, and is URL_https://github.com/eishay/jvm-serializers/wiki [faster] than GSON.. details
  • Note that URL_http://wiki.fasterxml.com/JacksonHome [Jackson] fixes these issues, and is URL_https://github.com/eishay/jvm-serializers/wiki [faster] than GSON.. details
  • For what it is worth, Jackson versions 1.5 and up do support handling of polymorphic classes (deserialize into sub-classes of base class).. details
  • The newly released 1.5 version might have improved that, but I don't know.. details
  • Json-lib is sometimes easier to get to grasp with for smaller tasks that do not require top-speed, but with still completely acceptable results.Gson as also a good reputation and is very flexible, however the previous benchmarks I came across seemed to indicate that it did not perform as well as Jackson.. details
  • I'm pointing you to Jackson first at it seems to be the fastest in many cases.. details
  • Json-lib is sometimes easier to get to grasp with for smaller tasks that do not require top-speed, but with still completely acceptable results.Gson as also a good reputation and is very flexible, however the previous benchmarks I came across seemed to indicate that it did not perform as well as Jackson.. details
  • Regarding security, I think your best option here would be to support SSL for the connections.. details
  • Regarding security, I think your best option here would be to support SSL for the connections.. details
  • btw, it is kind of funny -- at work I need exactly same support (request enumerates fields it wants) -- which is why I am also looking for more dynamic support myself.. details
  • codehaus.jackson.jaxrs.JacksonJsonProvider.readFrom(JacksonJsonProvider.java:3 98) .. details
  • As far as I know, later Jackson versions (including 1.5 and recently released 1.6) work just fine on Android: conveniently and efficiently.. details
  • As far as I know, later Jackson versions (including 1.5 and recently released 1.6) work just fine on Android: conveniently and efficiently.. details
  • Hi, thanks for your answer.. details
  • Choices like Jackson and Gson are big improvements so it is worth considering using them.. details
  • Choices like Jackson and Gson are big improvements so it is worth considering using them.. details
  • If you want something very efficient, use something like Jackson.. details
  • If you want something very efficient, use something like Jackson.. details
  • Pretty much all alternatives from org.json list provide more convenient and simpler ways to work with JSON.Aside from Gson that some like, I would recommend URL_http://wiki.fasterxml.com/JacksonInFiveMinutes [Jackson] ; and flex-json and Svenson are other packages that seem decent.. details
  • Pretty much all alternatives from org.json list provide more convenient and simpler ways to work with JSON.Aside from Gson that some like, I would recommend URL_http://wiki.fasterxml.com/JacksonInFiveMinutes [Jackson] ; and flex-json and Svenson are other packages that seem decent.. details
  • It should be so simple, but I just cannot find it after being trying for an hour embarrasing I need to get a JSON string e.g.. details
  • Also, while this won't help you on short term, Jackson 1.6 has improvements both for JsonNode (retainAll(String... names), remove(String... names) and possibly ObjectMapper, as this is a known area for improvements.. details
  • I want to get something like CODETERM2 .. details
  • I want to get something like CODETERM1 .. details
  • In practice, I want to support requesting any subset of an object's fields, so I could potentially have thousands of JSON Views (10 fields implies 1,023 subsets!).. details
  • I want to support requests for any subset of the fields, so I'd like to do it at run-time (dynamically).. details
  • For example, suppose I want to support partial serialization for User objects: CODESNIPPET_JAVA1 .. details
  • In practice, I want to support requesting any subset of an object's fields, so I could potentially have thousands of JSON Views (10 fields implies 1,023 subsets!).. details
  • However, they are defined statically (using annotations) and only chosen dynamically (per serialization).. details
  • What JSON library supports partial serialization at run-time?. details
  • What JSON library supports partial serialization at run-time?. details
  • I just commented on reference to expected good performance.Feature-set wise Jackson handles all the same nesting, layering, generics, so that's not where speed difference comes from.Having getters and setters does not impact performance in any measurable way (for packages I am aware of), so definitely can have them there.. details
  • I just commented on reference to expected good performance.Feature-set wise Jackson handles all the same nesting, layering, generics, so that's not where speed difference comes from.Having getters and setters does not impact performance in any measurable way (for packages I am aware of), so definitely can have them there.. details
  • The URL_http://wiki.fasterxml.com/JacksonInFiveMinutes#Tree_Model_Example [tree- model] or data binding approach is probably the easiest to work with.. details
  • Thanks!. details
  • I don't think MappingJacksonJsonMarshaller exists but this seems like a solution to a problem I'm having... or at least one worth trying.. details
  • I hope you can fill the missing parts by yourself.. details
  • I hope you can fill the missing parts by yourself.. details
  • But it sounds like maybe what you want is actually support for deserializing polymorphic types; and this is also support (as of Jackson 1.5, see URL_http://wiki.fasterxml.com/JacksonPolymorphicDeserialization [ URL_http://wiki.fasterxml.com/JacksonPolymorphicDeserialization ] ).. details
  • Jackson can take not only type-erased class as target type, but also TypeReference which uses the usual "super type token" pattern.. details
  • and this works for all kinds of generic types, not just Maps and Collections.. details
  • But it sounds like maybe what you want is actually support for deserializing polymorphic types; and this is also support (as of Jackson 1.5, see URL_http://wiki.fasterxml.com/JacksonPolymorphicDeserialization [ URL_http://wiki.fasterxml.com/JacksonPolymorphicDeserialization ] ).. details
  • Although sounds like for now just exclusion might work for you.. details
  • Although sounds like for now just exclusion might work for you.. details
  • URL_http://jackson.codehaus.org [Jackson] 1.6 (released september 2010) has specific annotation-based support for handling such parent/child linkage, see URL_http://wiki.fasterxml.com/JacksonFeatureBiDirReferences [ URL_http://wiki.fasterxml.com/JacksonFeatureBiDirReferences ] .. details
  • URL_http://jackson.codehaus.org [Jackson] 1.6 (released september 2010) has specific annotation-based support for handling such parent/child linkage, see URL_http://wiki.fasterxml.com/JacksonFeatureBiDirReferences [ URL_http://wiki.fasterxml.com/JacksonFeatureBiDirReferences ] .. details
  • URL_http://jackson.codehaus.org [Jackson] 1.6 (released september 2010) has specific annotation-based support for handling such parent/child linkage, see URL_http://wiki.fasterxml.com/JacksonFeatureBiDirReferences [ URL_http://wiki.fasterxml.com/JacksonFeatureBiDirReferences ] .. details
  • Although sounds like for now just exclusion might work for you.. details
  • is it possible in this way a json without this variable (something like the following one)?. details
  • Thanks.. details
  • I have configured in an Spring 3 application a ContentNegotiatingViewResolver so when I invoke a controller with a URL which looks like .json it returns a json object using jackson library.. details
  • URL_http://wiki.fasterxml.com/JacksonInFiveMinutes [JacksonInFiveMinutes] See the "Simple Data Binding Example" heading if you just want to use generic Maps.. details
  • URL_http://wiki.fasterxml.com/JacksonInFiveMinutes [JacksonInFiveMinutes] See the "Simple Data Binding Example" heading if you just want to use generic Maps.. details
  • URL_http://wiki.fasterxml.com/JacksonInFiveMinutes [JacksonInFiveMinutes] See the "Simple Data Binding Example" heading if you just want to use generic Maps.. details
  • URL_http://wiki.fasterxml.com/JacksonInFiveMinutes [JacksonInFiveMinutes] See the "Simple Data Binding Example" heading if you just want to use generic Maps.. details
  • The Spring Framework uses Jackson, so that's a fairly good endorsement for Jackson.. details
  • How do I get Jackson to serialize my Joda DateTime object according to a simple pattern (like "dd-MM-yyyy"?. details
  • Thanks!. details
  • Simple look- ahead won't work due to separators (commas, colons).. details
  • equality comparison is by value and should work as expected with respect to JSON arrays, objects and primitive values.. details
  • equality comparison is by value and should work as expected with respect to JSON arrays, objects and primitive values.. details
  • equality comparison is by value and should work as expected with respect to JSON arrays, objects and primitive values.. details
  • equality comparison is by value and should work as expected with respect to JSON arrays, objects and primitive values.. details
  • It has excellent support for parameterized collections and (nested) Javabeans.. details
  • There are several JSON libraries in Java available which you can implement in your webapp, the popular ones being under each URL_http://www.json.org/java/ [JSON.org] , URL_http://jackson.codehaus.org [Jackson] and URL_http://code.google.com/p/google-gson/ [Google-Gson] .. details
  • There are several JSON libraries in Java available which you can implement in your webapp, the popular ones being under each URL_http://www.json.org/java/ [JSON.org] , URL_http://jackson.codehaus.org [Jackson] and URL_http://code.google.com/p/google-gson/ [Google-Gson] .. details
  • It has excellent support for parameterized collections and (nested) Javabeans.. details
  • Reason this might be easy (enough) to implement is that it should only require a single character look-ahead.. details
  • For whatever it is worth, it might well be possible to get JsonParser.peek() added; best way to request this would be to file a feature request at URL_http://jira.codehaus.org/browse/JACKSON [ URL_http://jira.codehaus.org/browse/JACKSON ] .. details
  • There is 'org.codehaus.jackson.util.JsonParserDelegate' which could make it relatively easy to implement, depending on what information you want to retain about current element.. details
  • I am currently using Jackson 1.4.2 and attempting deserialization of 'code' values (unique identifiers for type information) that are passed from our UI back to the Java controllers (Servlets).. details
  • not interested in other libraries, so no "_library x does all this and the kitchen sink_" type answers please.. details
  • Not straightforward, but I'd combine JAXB, Jackson and BeanUtils.. details
  • thanks.. details
  • I'm currently working on a webservice-client for Android.. details
  • The client library works on normal machines.. details
  • If you truly want dynamic (aka per instance customization) you will probabily have to hack the jackson library yourself.. details
  • If you need to dynamically decide which properties are marshalled, then I suggest you manually construct a CODETERM1 of keys to values for your objects, and then pass that CODETERM2 to Jackson, rather than passing the CODETERM3 object directly.. details
  • URL_http://jackson.codehaus.org/ [Jackson] appears to support some amount of JSON parsing straight from an CODETERM1 .. details
  • URL_http://jackson.codehaus.org/ [Jackson] appears to support some amount of JSON parsing straight from an CODETERM1 .. details
  • It's a bit of a hack, but it works nicely.. details
  • Edit: I noticed that Spring MappingJacksonJsonMarshaller adds the wrapping class when marshalling, so I stepped through the code in debug and noticed that Spring passes in a HashMap with a single key-value pair such that the key is the wrapping name and the value is the object.. details
  • Thanks, I use Gson a lot and jackson, jsonlib.. details
  • @Eto: An upvote and ticking the answer are the traditional methods of thanks :).. details
  • Thank you very much skaffman!I did not realize that.. details
  • edit: I just tried this, and it works fine when Name is a top-level class.. details
  • Thank you in advance .. details
  • The "User" class would became like that: CODESNIPPET_JAVA3 .. details
  • The "User" class would became like that: CODESNIPPET_JAVA3 .. details
  • Thank you in advance .. details
  • If you still need to use JSON I would recommend URL_http://jackson.codehaus.org/ [Jackson] .. details
  • If you still need to use JSON I would recommend URL_http://jackson.codehaus.org/ [Jackson] .. details
  • If I understand question correctly, yes, I think URL_http://wiki.fasterxml.com/JacksonJsonViews [JSON-Views] for Jackson would allow this.You would basically create two different views (profiles) for same type, and choose which one to use for serialization.. details
  • If I understand question correctly, yes, I think URL_http://wiki.fasterxml.com/JacksonJsonViews [JSON-Views] for Jackson would allow this.You would basically create two different views (profiles) for same type, and choose which one to use for serialization.. details
  • @JsonTypeResolver is a rather powerful thing and mostly useful if you want to have fully custom type information inclusion mechanism ("DIY" for polymorphic type handling).Reason I am asking is to ensure that if I was to write sample code, it would help you (and others that might find it useful).. details
  • Not perfect, but you might find a better solution looking into this, hope it helps (obviously).. details
  • Not perfect, but you might find a better solution looking into this, hope it helps (obviously).. details
  • I'm using ajax to pull data for an RIA and when working with the Order I don't really care about the address data, but when dealing with Business I do want the list.. details
  • The reason I suggest Jackson is by the way because it is fast**.. details
  • The reason I suggest Jackson is by the way because it is fast**.. details
  • This seems like a good question for Jackson URL_http://xircles.codehaus.org/projects/jackson/lists [mailing-lists] (user@) or for URL_http://jackson-users.ning.com/ [user-community] forums.. details
  • This seems like a good question for Jackson URL_http://xircles.codehaus.org/projects/jackson/lists [mailing-lists] (user@) or for URL_http://jackson-users.ning.com/ [user-community] forums.. details
  • Interestingly, "Java Jackson" is also the name of the 70's least popular blaxploitatin film.. details
  • I'm not using jackson, but searching I found this configuration that seems to be what you want: URL_http://jackson.codehaus.org/1.4.2/javadoc/org/codehaus/j ackson/map/SerializationConfig.Feature.html#WRAP_ROOT_VALUE [WRAP_ROOT_VALUE] Feature that can be enabled to make root value (usually JSON Object but can be any type) wrapped within a single property JSON object, where key as the "root name", as determined by annotation introspector (esp.. details
  • I'm not using jackson, but searching I found this configuration that seems to be what you want: URL_http://jackson.codehaus.org/1.4.2/javadoc/org/codehaus/j ackson/map/SerializationConfig.Feature.html#WRAP_ROOT_VALUE [WRAP_ROOT_VALUE] Feature that can be enabled to make root value (usually JSON Object but can be any type) wrapped within a single property JSON object, where key as the "root name", as determined by annotation introspector (esp.. details
  • Jackson and Gson are the most complete Java JSON packages regarding actual data binding support; many other packages only provide primitive Map/List (or equivalent tree model) binding.Both have complete support for generic types, as well, as enough configurability for many common use cases.. details
  • welcome to the wacky world of Jacksons documentation of features that don't actually work.. details
  • :) Anyway as you said Jackson has a + in performance and that's very important for me.. details
  • :) Anyway as you said Jackson has a + in performance and that's very important for me.. details
  • The project is also quite active as you can see from URL_http://jackson.codehaus.org/News [their-web-page] and that's a very good sign as well.. details
  • The project is also quite active as you can see from URL_http://jackson.codehaus.org/News [their-web-page] and that's a very good sign as well.. details
  • Here's another benchmark that can highlight how fast Jackson is if compared to GSon.. details
  • Circular References support... that should be a primary feature but I'm not sure if it does support them, I've never encountered a circular reference so far (even if they should be quite common I think, especially in the model).. details
  • Here's another benchmark that can highlight how fast Jackson is if compared to GSon.. details
  • like adding annotations for class Foo here is my conf.xml CODESNIPPET_JAVA3 .. details
  • from that i m expecting to return a JSON string {x:'3',y:'4'} from server without any other configuration.. details
  • Having said that, I'm currently a big fan of URL_http://jackson.codehaus.org/Home [Jackson] which my quick read of their ObjectNode.equals() implementation suggests does the set membership comparison that you want: CODESNIPPET_JAVA1 .. details
  • Having said that, I'm currently a big fan of URL_http://jackson.codehaus.org/Home [Jackson] which my quick read of their ObjectNode.equals() implementation suggests does the set membership comparison that you want: CODESNIPPET_JAVA1 .. details
  • good to mention I dont use views or modelmap i have a js UI.. details
  • the 'other' object may have more children then in _children, and this method would still return true.. details
  • the 'other' object may have more children then in _children, and this method would still return true.. details
  • Ok. Like I said, I think GSON only does full document binding, but I am not 100%.For an alternative, Jackson ( URL_http://jackson.codehaus.org ) does allow incremental binding, as well as multiple other operating modes.The way that works is that you need to get a JsonParser for the main thing, iterate over main JSON array or object, and call parser.readValueAs() for actual binding.User mailing list can help with details, if documentation does not have enough pointers.. details
  • Ok. Like I said, I think GSON only does full document binding, but I am not 100%.For an alternative, Jackson ( URL_http://jackson.codehaus.org ) does allow incremental binding, as well as multiple other operating modes.The way that works is that you need to get a JsonParser for the main thing, iterate over main JSON array or object, and call parser.readValueAs() for actual binding.User mailing list can help with details, if documentation does not have enough pointers.. details
  • There are some good answers here: URL_http://stackoverflow.com/questions/658936/is-there-a-library-to-convert- java-pojos-to-and-from-json-and-xml [ URL_http://stackoverflow.com/questions/658936 /is-there-a-library-to-convert-java-pojos-to-and-from-json-and-xml] EDIT from this link: URL_http://jackson.codehaus.org/Tutorial [ URL_http://jackson.codehaus.org/Tutorial ] you have an example using the ObjectMapper(): CODESNIPPET_JAVA1 .. details
  • There are some good answers here: URL_http://stackoverflow.com/questions/658936/is-there-a-library-to-convert- java-pojos-to-and-from-json-and-xml [ URL_http://stackoverflow.com/questions/658936 /is-there-a-library-to-convert-java-pojos-to-and-from-json-and-xml] EDIT from this link: URL_http://jackson.codehaus.org/Tutorial [ URL_http://jackson.codehaus.org/Tutorial ] you have an example using the ObjectMapper(): CODESNIPPET_JAVA1 .. details
  • There are some good answers here: URL_http://stackoverflow.com/questions/658936/is-there-a-library-to-convert- java-pojos-to-and-from-json-and-xml [ URL_http://stackoverflow.com/questions/658936 /is-there-a-library-to-convert-java-pojos-to-and-from-json-and-xml] EDIT from this link: URL_http://jackson.codehaus.org/Tutorial [ URL_http://jackson.codehaus.org/Tutorial ] you have an example using the ObjectMapper(): CODESNIPPET_JAVA1 .. details
  • There are some good answers here: URL_http://stackoverflow.com/questions/658936/is-there-a-library-to-convert- java-pojos-to-and-from-json-and-xml [ URL_http://stackoverflow.com/questions/658936 /is-there-a-library-to-convert-java-pojos-to-and-from-json-and-xml] EDIT from this link: URL_http://jackson.codehaus.org/Tutorial [ URL_http://jackson.codehaus.org/Tutorial ] you have an example using the ObjectMapper(): CODESNIPPET_JAVA1 .. details
  • I've been working with Apache Wink and for that I have needed to use a JSON provider, such as Jettison (a colleague has been using Jackson).. details
  • Do I need to create my own MessageBodyReader for that, or this is supported by the framework without using Jackson libraries?. details
  • Didn't find answer.Please point me.. details
  • Didn't find answer.Please point me.. details
  • FWIW, Jackson version 1.5 will have support for full handling of polymorphism for deserialization (1.4 was just released).. details
  • Lately URL_http://jackson.codehaus.org/ [Jackson] has been working out well for us.. details
  • Lately URL_http://jackson.codehaus.org/ [Jackson] has been working out well for us.. details
  • Have a look at URL_http://stackoverflow.com/questions/338586/a-better-java- json-library [this-article-here-on-SO] , I have used the URL_http://wiki.fasterxml.com/JacksonInFiveMinutes [Jackson-library] a couple of times, and like it a lot.. details
  • Have a look at URL_http://stackoverflow.com/questions/338586/a-better-java- json-library [this-article-here-on-SO] , I have used the URL_http://wiki.fasterxml.com/JacksonInFiveMinutes [Jackson-library] a couple of times, and like it a lot.. details
  • One thing that might be interesting wrt Jackson is the performance aspect (Jackson is specifically designed as a very high performance JSON package), see [ URL_http://code.google.com/p/thrift-protobuf-compare/wiki/Benchmarking ] and [ URL_http://www.cowtowncoder.com/blog/archives/2009/09/entry_326.html ].. details
  • :-) .. details
  • This is probably not the answer you are looking for, but there are plans to implement proper "polymorphic deserialization" (and necessary support on serialization for it), for Jackson version 1.4 or so (i.e.. details
  • Anyway, just in case it matters, here are underlying problems wrt implementing handling of sub-classes with JSON, and without schema language (since json doesn't really have widely used one): how to separate data (bean property values) from metadata (type information only needed to construct proper subclasses) -- must be kept separate, but JSON as format has no way to define (could use naming convention) how to add proper annotations to generate and use such metadata; and without depending on language specific features (shouldn't have to tie to java class names for example) These are solvable problems, but not trivially easy to solve.. details
  • I need a solution for deserializing, as well.. details
  • I can recommend Jackson -- fast, sturdy, and just released a version 1.0.0.. details
  • If you can find official docs, that's best.. details
  • To get good JSON-support, I would consider using a JSON processing library that does real OJM mapping (I assume Svenson does too, but additionally), such as: URL_http://jackson.codehaus.org/Tutorial [Jackson] URL_http://code.google.com/p/google-gson/ [Google-gson] Also: even if you do need to support both XML and JSON, you are IMO better off using separate libraries for these tasks -- objects (beans) to use on server- side need not be different, just serialization libs that convert to/from xml and json.. details
  • To get good JSON-support, I would consider using a JSON processing library that does real OJM mapping (I assume Svenson does too, but additionally), such as: URL_http://jackson.codehaus.org/Tutorial [Jackson] URL_http://code.google.com/p/google-gson/ [Google-gson] Also: even if you do need to support both XML and JSON, you are IMO better off using separate libraries for these tasks -- objects (beans) to use on server- side need not be different, just serialization libs that convert to/from xml and json.. details
  • As already mentioned, URL_http://jersey.dev.java.net [Jersey] (JAX-RS impl) is the framework to use; but for basic mapping of Java objects to/from JSON, URL_http://jackson.codehaus.org/Tutorial [Tutorial] is good.. details
  • As already mentioned, URL_http://jersey.dev.java.net [Jersey] (JAX-RS impl) is the framework to use; but for basic mapping of Java objects to/from JSON, URL_http://jackson.codehaus.org/Tutorial [Tutorial] is good.. details
  • Jackson works nicely with Jersey as well, either using JAX-RS provider jar, or even just manually.Similarly it's trivially easy to use with plain old servlets; just get input/output stream, call ObjectMapper.readValue() and .writeValue(), and that's about it.. details
  • I second that, Jackson is a wonderful piece of work- much more efficient.. details
  • I second that, Jackson is a wonderful piece of work- much more efficient.. details
  • UPDATE URL_http://wiki.fasterxml.com/JacksonRelease15 [Jackson-1.5] added support for this (i.e.. details
  • UPDATE URL_http://wiki.fasterxml.com/JacksonRelease15 [Jackson-1.5] added support for this (i.e.. details
  • I'm thinking something like Rails single table inheritance, but it would have to be something that the JSON libraries understand.. details
  • :-) For such a simple mapping, most tools from URL_http://json.org [ URL_http://json.org ] (section java) would work.For one of them (Jackson, URL_http://wiki.fasterxml.com/JacksonInFiveMinutes [ URL_http://wiki.fasterxml.com/JacksonInFiveMinutes ] ), you'd do: CODESNIPPET_JAVA1 .. details
  • :-) For such a simple mapping, most tools from URL_http://json.org [ URL_http://json.org ] (section java) would work.For one of them (Jackson, URL_http://wiki.fasterxml.com/JacksonInFiveMinutes [ URL_http://wiki.fasterxml.com/JacksonInFiveMinutes ] ), you'd do: CODESNIPPET_JAVA1 .. details
  • My recommendation would be Jackson, URL_http://jackson.codehaus.org/Tutorial [ URL_http://jackson.codehaus.org/Tutorial ] which allows for mapping to List/Map/Integer/String/Boolean/null, as well as to real Beans/POJOs.. details
  • My recommendation would be Jackson, URL_http://jackson.codehaus.org/Tutorial [ URL_http://jackson.codehaus.org/Tutorial ] which allows for mapping to List/Map/Integer/String/Boolean/null, as well as to real Beans/POJOs.. details
  • I think you've answered the core of it, there is no standard way of representing this in JSON.. details
  • Jackson is amazingly customizable.. details
  • Finally, don't miss URL_http://www.cowtowncoder.com/blog/archives/2010/11/entry_434.html [7 -Killer-Features-that-set-Jackson-apart-from-competition] .. details
  • Another impressive Jackson feature is the ability to _map classes that you don't own_ (in other words, map a third-party Java class when you can't change the source code).. details
  • I can't _truly_ recommend this, because I've never used it, but URL_http://jackson.codehaus.org/ [Jackson] sounds promising.. details
  • UPDATE: A year ago I started actually using Jackson and I can confirm that it is awesome :-).. details
  • I can't _truly_ recommend this, because I've never used it, but URL_http://jackson.codehaus.org/ [Jackson] sounds promising.. details
  • Note that Jackson ( URL_http://jackson.codehaus.org ) can deserialize the example JSON above to a Map without custom processing, and JSON-lib ( URL_http://json - lib.sourceforge.net) can similarly deserialize to a Map (Map map JSONObject.fromObject(json);).. details
  • So the structure of the output via Jackson is dependent on the POJO you created.. details
  • The problem is that most of what I found is for webapps, in which the part of the configuration which I need is under the hood.. details
  • It throws this exception: org.codehaus.jackson.map.JsonMappingException: Can not construct instance of javax.servlet.http.HttpServletRequest, problem: abstract types can only be instantiated with additional type information.. details
  • The root cause it that your data is too large to be held in memory.. details
  • Using ResponseEntity in all of the methods can be avoid if you specify Serialization Feature to JSON Object mapper: this.configure(SerializationFeature.WRAP_ROOT_VALUE, false); (BTW false is default), and it will return you then JSON without root element, it will be {"assesments":[{"assessmentName":".......... details
  • Looking at the sources for Jackson the PropertyNamingStrategy isn't going to help as that is only used for properties and not root types.. details
  • Use a debugger, step through the MappingJackson2HttpMessageConverter and see what field is blocking the deserialization.. details
  • I later found a Jackson jaxrs provider that will hook up to Jersey automatically as opposed to the jackson module provided by Jersey which required configuration.. details
  • I can't think of any bad consequences in a typical Spring app when Jackson is used only for RESTful web services, can you?. details
  • One extra note, if while parsing you get an error such as JsonMappingException: No suitable constructor found for type then it means you need to added a default constructor to your class adding a private no-arg constructor fixed it for me.. details
  • This doesn't work from my experience, it might be a bug though: URL_https://github.com/FasterXML/jackson-databind/issues/254 .. details
  • I'd eliminate the character limit.. details
  • You can disable Jackson Auto Discovery by @JsonAutoDetect(fieldVisibility JsonAutoDetect.Visibility.NONE, getterVisibility JsonAudtoDetect.Visibility.NONE).. details
  • @Yume117 hashmap is just a jackson default if you don't want to be bothered with creating a (static) class structure.. details
  • "ArrayList" - it is really bad name for your POJO class.. details
  • I have seen that but it doesn't solve the problem.. details
  • I'm sorry but it isn't working I'll get this as error: W/System.err(21478): com.fasterxml.jackson.databind.JsonMappingException: Can not deserialize instance of java.util.LinkedHashMap out of START_ARRAY token the file Map.java doesn't exits because it's raw data binding (thanks for the link).. details
  • The problem I think is that it's not compatible with GAE.. details
  • While result publishing is problematic (too long to explain here) running test locally is very easy.. details
  • I really wish frameworks did not add these (generally useless) layers of extra wrapping -- they seem to be nr 1 source of confusion for developers.. details
  • I think you can reuse it to solve your problem.. details
  • I asked this question to hear some ideas since i wasted few frustrating hours with jackson's undocumented and weird api.. details
  • Could you debunk my fear?. details
  • Looked promising, but now I get the following exception instead: JsonMappingException: Argument 0 of constructor [constructor for Circle, annotations: {interface com.fasterxml.jackson.annotation.JsonCreator=@com.fast erxml.jackson.annotation.JsonCreator()}] has no property name annotation; must have name when multiple-paramater constructor annotated as Creator.. details
  • I think your question is similar to this question: URL_http://stackoverflow.com/questions/17605524/jackson-delay-deserializing - field/17625688 Maybe my answer for this question give you idea how to solve your problem.. details
  • Unfortunately I cannot use full mapping because the data does not fixed field names.. details
  • No, but your code is really ugly and really hard to maintenance.. details
  • I'll use a CustomDeserializers, it's gonna save me a lot of headaches!I'll also be able to apply my versioning strategies in there with very little modifications.. details
  • Had misunderstood your question.. details
  • This however, is the request that is failing.. details
  • Downvoting without a comment on a working solution.. details
  • Referenced bug had other issue(s) -- generic type resolution as shown above will work, but does not address other possible problems.. details
  • I later found a Jackson jaxrs provider that will hook up to Jersey automatically as opposed to the jackson module provided by Jersey which required configuration.. details
  • I later found a Jackson jaxrs provider that will hook up to Jersey automatically as opposed to the jackson module provided by Jersey which required configuration.. details
  • Yes, I'm very familiar with Gson, and Jersey already uses Jackson, but converting JSON to and from POJOs is only one part of the problem, I'm looking for an alternative to Jersey, which is a framework for building REST-HTTP APIs.. details
  • Yes - I since found out I had the wrong dependency in my Maven POM.. details
  • Problem solved.. details
  • I doubt you'll get this to work.. details
  • That does the trick.. details
  • Both answers solve my problem but unfortunately I cannot accept both so I chose this one because the "isArray" method seems to be a bit more elegant for error handling.. details
  • @SotiriosDelimanolis I have tried RequestBody, and it causes a 400 error whenever the POSTed content has anything.. details
  • I'll use a CustomDeserializers, it's gonna save me a lot of headaches!I'll also be able to apply my versioning strategies in there with very little modifications.. details
  • @Gus I should have said "default Bean/JSON serialiazation".. details
  • beanPropertyWriter.assignSerializer(new MyCustomSerializer()); did the trick.. details
  • Well I got where the error was , and edited it in the question, now the code is running without any errors/eceptions, but not showing any output.. details
  • There's insufficient information here.. details
  • So there wouldn't be a "conflicting name" error thrown in case of different names?. details
  • The problem I think is that it's not compatible with GAE.. details
  • @eflat it seems to depend on object size and how you handle the mobile phone memory etc, not only gson/jackson etc.. details
  • I am getting com.fasterxml.jackson.databind.exc.UnrecognizedPropertyException: Unrecognized field "id" (class com.juteralabs.perkmobile.models.AllDealerssModel), not marked as ignorable (3 known properties: , "id", "merchantname", "status" [truncated]]).. details
  • The harder part, of course, is figuring out what the data means, if it's totally different each time.. details
  • I am afraid, that won't help.. details
  • Well I got where the error was , and edited it in the question, now the code is running without any errors/eceptions, but not showing any output.. details
  • For example, it converts abc to "abc" instead of throwing an error.. details
  • Argh, 1.9.12???. details
  • @mvb13: Yeah, that could do the trick.. details
  • I have seen that but it doesn't solve the problem.. details
  • Not unfortunately.. details
  • I had been shying away from this because it looked too complicated.. details
  • SerializationConfig before each writeValue() (I doubt).. details
  • Thanks for you answer I have added the third jar and I am now facing a different error : Exception in thread "main" java.lang.NoSuchMethodError: com.. details
  • Referenced bug had other issue(s) -- generic type resolution as shown above will work, but does not address other possible problems.. details
  • @user2784435 ah, my bad, I missed the surrounding [].. details
  • Uh... Well, to each his poison, I guess.... details
  • My classes have jaxb annotations and the system application provider seems to interfere with the jackson json provider.. details
  • Approach you've suggested looks good, but I'm afraid of billions setters that I'll have to add if more different formats will be presented.. details
  • R.Bystrup : Thats the issue after adding jackson-core 2.2.2 and jackson- annotations 2.2.2 those class not found exceptions got solved.. details
  • Yes.No exception is ther.. details
  • I don't see getters for the fields type and severity in your custom Exception -- I only see setters.. details
  • Error 400 indicates something either wrong with the request or the mapping.. details
  • I tried to add Jackson, but I'm ending up with another exception now.. details
  • Looks to me like you want a Map - here's a [little tutorial]( URL_http://www.mkyong.com/java/how-to-convert-java-map-to-from-json - jackson/).. details
  • Jackson's documentation is getting ridiculously complex now .. details
  • You could get this error if the Content-Type is not set properly.. details
  • why u are not using default Json Parser Api?. details
  • You can use Mapper to bind to JsonNode as well: JsonNode root mapper.readValueAsTree(source);.. details
  • At least this a confirmation that there's no way to do this within Jackson (yet), that I'm not missing something; it has to be done the hard way.. details
  • @ryan As far as I can tell, the error happens because Jackson doesn't know how to map the JSON element name 736.. details
  • Polymorphism isn't a problem in this case.. details
  • Uh... Well, to each his poison, I guess.... details
  • I disagree in Jackson extension being hard, but there are multiple kinds of extension, and Jackson tackles the hardest one, extension by libs, frameworks, not only app devs.. details
  • If the object only contains properties which are int, string, list... no any problem.. details
  • it is clear but im getting this error now: Exception in thread "main" com.fasterxml.jackson.core.JsonParseException: Unexpected end-of-input within/between ARRAY entries at [Source: library.json; line: 11, column: 200].. details
  • This doesn't work from my experience, it might be a bug though: URL_https://github.com/FasterXML/jackson-databind/issues/254 .. details
  • @Perception im getting this error after following what you told to do : Exception in thread "main" com.fasterxml.jackson.core.JsonParseException: Unexpected end-of-input within/between ARRAY entries at [Source: library.json; line: 11, column: 200].. details
  • 2) There's apparently a bug in Jackson 2.2.2 that prevents the null serializer from being called on null nodes using the Tree Model; it only gets called for POJOs.. details
  • There does not seem the way using this disable call but what does your custom annotation do?. details
  • "My invalid json" is a bad example of invalid JSON, because it is, in fact, a valid JSON string.. details
  • As an aside, I recommend using a JSON mapping library like Jackson if you are going to be doing more than very trivial work with JSON.. details
  • @Trinctorius - _"As to when each type is thrown, basic rule is that Jackson tries to pass underlying IOExceptions from read source (InputStream, Reader), and in limited number of cases where problem is related to low-level character decoding (invalid UTF-8 sequence).. details
  • My JacksonFeature disable also the MOXy Provider.. details
  • Note that Jackson ( URL_http://jackson.codehaus.org ) can deserialize the example JSON above to a Map without custom processing, and JSON-lib ( URL_http://json - lib.sourceforge.net) can similarly deserialize to a Map (Map map JSONObject.fromObject(json);).. details
  • Downvoting without a comment on a working solution.. details
  • That does the trick.. details
  • I don't see getters for the fields type and severity in your custom Exception -- I only see setters.. details
  • "the java.io.IOException: Stream closed" exception that I'm getting happens when I use Jackson instead of Jettison.. details
  • Sorry, with the plethora of internet issues I am having tonight I think I forgot to add that.. details
  • I don't know -- all I am saying is that kind of JSON you are using is hard to map, and Jackson probably does not have functionality.. details
  • It throws this exception: org.codehaus.jackson.map.JsonMappingException: Can not construct instance of javax.servlet.http.HttpServletRequest, problem: abstract types can only be instantiated with additional type information.. details
  • not a problem with json encoding URL_http://jsonlint.com/ .. details
  • Right now I cannot think of an easy way to fix that without messing around with Jackson's library.. details
  • The root cause it that your data is too large to be held in memory.. details
  • (Maybe I find time tomorrow to look into your actual problem.. details
  • Referenced bug had other issue(s) -- generic type resolution as shown above will work, but does not address other possible problems.. details
  • One extra note, if while parsing you get an error such as JsonMappingException: No suitable constructor found for type then it means you need to added a default constructor to your class adding a private no-arg constructor fixed it for me.. details
  • SerializationConfig before each writeValue() (I doubt).. details
  • There is also possibility that JAXB annotation introspector extension (it's a Jackson add-on) could have a bug here.. details
  • Solve the out of memory problem.. details
  • In this case non-staticness was probably accidental.. details
  • I'm sorry but it isn't working I'll get this as error: W/System.err(21478): com.fasterxml.jackson.databind.JsonMappingException: Can not deserialize instance of java.util.LinkedHashMap out of START_ARRAY token the file Map.java doesn't exits because it's raw data binding (thanks for the link).. details
  • I use springmvc @ResponseBody for auto deserialization: objectMapper.configure(SerializationConfig.Feature.WRITE_EMPTY_JSON_ARRAYS, false).. details
  • Your JSON string is malformed, the type of center is an array of invalid objects.. details
  • I tried to add Jackson, but I'm ending up with another exception now.. details
  • I can do it with a JsonDeserializer, but I want to avoid lots of manual plumbing if I can help it.. details
  • The problem I think is that it's not compatible with GAE.. details
  • This doesn't work from my experience, it might be a bug though: URL_https://github.com/FasterXML/jackson-databind/issues/254 .. details
  • R.Bystrup : Thats the issue after adding jackson-core 2.2.2 and jackson- annotations 2.2.2 those class not found exceptions got solved.. details
  • Now getting "java.lang.NoClassDefFoundError: com/github/fge/Frozen" exception.... details
  • Does this fix the error?. details
  • Jackson's documentation is getting ridiculously complex now .. details
  • The same problem.. details
  • Thanks I'll try adding jersey-media-json-jackson but the link seems to be broken.. details
  • Thanks I had this problem for quite a while, I saw somewhere in the jersey documenation that it would scan the classpath for providers and the JacksonProvider would be automatically discovered but this appears to be incorrect.. details
  • This is probably due to the fact that this is an XML attribute (and that, if I'm not mistaken, attribute names and element names in XML cannot have this character).. details
  • but is same possible with encrypted data also as it contains many illegal characters?. details
  • mapper.defaultPrettyPrintingWriter() is actually deprecated in Jackson 1.9.2.. details
  • when I add that I get the compile error "incompatible types: JodaModule cannot be converted to Module" - the method expects a org.codehaus.jackson.map.Module but JodaModule does not have this in its heirarchy so how could this work?. details
  • Everyone mentions missing @ResponseBody annotations and Jackson dependencies as the cause of 406 errors.. details
  • You could get this error if the Content-Type is not set properly.. details
  • It it is not a problem I suggest to use the newest version of Jackson.. details
  • I am guessing that all you need is to add @JsonProperty annotations next to private fields (Jackson follows Bean convention, and private fields are ignored, only public fields serialized by default).. details
  • If you are trying to solve some more complex problem and you can't modify the Child object to say add annotations.. details
  • Both answers solve my problem but unfortunately I cannot accept both so I chose this one because the "isArray" method seems to be a bit more elegant for error handling.. details
  • Unfortunately I cannot use full mapping because the data does not fixed field names.. details
  • Referenced bug had other issue(s) -- generic type resolution as shown above will work, but does not address other possible problems.. details
  • @ryan As far as I can tell, the error happens because Jackson doesn't know how to map the JSON element name 736.. details
  • Your looks similar to this: URL_http://stackoverflow.com/questions/17605524 /jackson-delay-deserializing-field/17625688.. details
  • Yes - I since found out I had the wrong dependency in my Maven POM.. details
  • Polymorphism isn't a problem in this case.. details
  • I discovered some Jackson library conflicts in my pom.xml that I'm cleaning up.. details
  • @assylias "And at runtime, I want default serialization" Jackson is not a "default" serialization in java!.. details
  • If the object only contains properties which are int, string, list... no any problem.. details
  • I use springmvc @ResponseBody for auto deserialization: objectMapper.configure(SerializationConfig.Feature.WRITE_EMPTY_JSON_ARRAYS, false).. details
  • Unfortunately, even with this updated serializer, Jackson outputs the enum's name() instead of using its getId () method that I've defined, even if use @JsonValue.. details
  • I'll use a CustomDeserializers, it's gonna save me a lot of headaches!I'll also be able to apply my versioning strategies in there with very little modifications.. details
  • I spent a lot of time fiddling with it (the code is complex!). details
  • I tried my main method but I couldn't because of it being void.. details
  • It makes it difficult to figure out how exactly that service is meant to be consumed.. details
  • @tribrick - dump the contents of your JSON file into [jsonlint]( URL_http://jsonlint.com) , and validate that it is well-formed.. details
  • Please note this answer is incorrect -- the field does not need to be public or have a getter and setter.. details
  • it is clear but im getting this error now: Exception in thread "main" com.fasterxml.jackson.core.JsonParseException: Unexpected end-of-input within/between ARRAY entries at [Source: library.json; line: 11, column: 200].. details
  • Same exception: com.fasterxml.jackson.databind.exc.UnrecognizedPropertyException: Unrecognized field "38991692" (class WikipediaPages), not marked as ignorable (one known property: "wikipediaPageMap"]).. details
  • 2) There's apparently a bug in Jackson 2.2.2 that prevents the null serializer from being called on null nodes using the Tree Model; it only gets called for POJOs.. details
  • Does this fix the error?. details
  • This doesn't work from my experience, it might be a bug though: URL_https://github.com/FasterXML/jackson-databind/issues/254 .. details
  • Right, but what I meant is that Jackson lets one do this with annotations (or even without, with "default typing"); so you do NOT have to handle mapping manually, unless you can not allow inclusion of type info in JSON.. details
  • This shifts the burden of customization to the client (need to include an identifier in the JSON packets), but the OP may be ok with it.. details
  • It looks like maybe the Filters class should also contain a Filters as a member too since the outside "filters" looks like there's another "filter" object inside of it (though it's weird that the outside one has quotes and the inside one does not).. details
  • private getters/sertters are mistake when i am writing this issue.. details
  • Same exception: com.fasterxml.jackson.databind.exc.UnrecognizedPropertyException: Unrecognized field "38991692" (class WikipediaPages), not marked as ignorable (one known property: "wikipediaPageMap"]).. details
  • @Trinctorius - _"As to when each type is thrown, basic rule is that Jackson tries to pass underlying IOExceptions from read source (InputStream, Reader), and in limited number of cases where problem is related to low-level character decoding (invalid UTF-8 sequence).. details
  • I was actually thinking about doing this, but my application is already heavily Jackson-oriented and all of the functionality is actually complete.. details
  • Make sure to vote for it -- as I said, it should work, but is one of trickier combinations to support unfortunately, just due to aspects of implementation.. details
  • Code I am using is as below ObjectMapper mapper new ObjectMapper(); String json null; AnnotationIntrospector primary new JaxbAnnotationIntrospector(mapper.getTypeFactory()); AnnotationIntrospector secondary new JacksonAnnotationIntrospector(); AnnotationIntrospector pair new AnnotationIntrospectorPair(primary,secondary); mapper.setAnnotationIntrospector(pair); try { json mapper.writeValueAsString(obj); } catch (Exception e) { return "Unable to convert to Json object:" + obj.toString() + " Message: " + e.getMessage(); }.. details
  • Default typing can use different kinds of criteria, see javadocs, including custom definition of what it should apply to.. details
  • @Andy consider accepting the answer if it solved your problem.. details
  • You are missing the most important part of problem description, UserContent class.. details
  • ObjectMapper by default will try to map all your fields.. details
  • I think the last should be mapper.configure(DeserializationConfig.Feature.FAIL_ON_UNKNOWN_PROPERTIES, false); but I may be wrong.. details
  • But somehow this is not working for me.. details
  • This really shouldn't be hard!.. details
  • It seems like the proxy ListingService is using an incorrect TypeToken to deserialize your array.. details
  • Could you debunk my fear?. details
  • "the java.io.IOException: Stream closed" exception that I'm getting happens when I use Jackson instead of Jettison.. details
  • java heap space error when using large xml file.. details
  • Jackson works, but I personally find Jackson awful to work with and MUCH prefer GSON.. details
  • I am afraid, that won't help.. details
  • But somehow this is not working for me.. details
  • I use jackson-xc-1.9.12.jar and the error is still there when you call it for the first time?. details
  • Thanks for your comment, unfortunately that was never the question.. details
  • I use jackson-xc-1.9.12.jar and the error is still there when you call it for the first time?. details
  • As of Jackson 2.0, ObjectMapper#setVisibility takes a PropertyAccessor as the first argument.. details
  • Now getting "java.lang.NoClassDefFoundError: com/github/fge/Frozen" exception.... details
  • Never mind, that was my own fault, actually.. details
  • I tried that and it did not fix the problem.. details
  • I doubt it.. details
  • The root cause it that your data is too large to be held in memory.. details
  • Problem solved.. details
  • java heap space error when using large xml file.. details
  • Hmm, maybe ...created an issue for that, cross referencing this question: URL_https://github.com/FasterXML/jackson-module-scala/issues/104 .. details
  • You are missing the most important part of problem description, UserContent class.. details
  • I think you can reuse it to solve your problem.. details
  • when I add that I get the compile error "incompatible types: JodaModule cannot be converted to Module" - the method expects a org.codehaus.jackson.map.Module but JodaModule does not have this in its heirarchy so how could this work?. details
  • @BalusC The same problem.. details
  • So there wouldn't be a "conflicting name" error thrown in case of different names?. details
  • Right now I cannot think of an easy way to fix that without messing around with Jackson's library.. details
  • The problem is I was using convertValue rather than readValue.. details
  • Solve the out of memory problem.. details
  • The problem I think is that it's not compatible with GAE.. details
  • but is same possible with encrypted data also as it contains many illegal characters?. details
  • The problem is I was using convertValue rather than readValue.. details
  • Also, to avoid your problem about code refactoring, I tend to use [Bridge Pattern]( URL_http://en.wikipedia.org/wiki/Bridge_pattern ) to avoid having a direct usage of third party libraries on my code.. details
  • as of jackson 1.9, this solution no longer works.. details
  • Hi yall, to reiterate what @Perception has already said, @JsonProprety is NOT EVIL.. details
  • Hmm, maybe ...created an issue for that, cross referencing this question: URL_https://github.com/FasterXML/jackson-module-scala/issues/104 .. details
  • Sorry, with the plethora of internet issues I am having tonight I think I forgot to add that.. details
  • Well, when you put it like that I guess it is a little confusing.. details
  • Missed that.. details
  • Google's Gson library does this by default and I was just wondering if there was some way Jackson could do the same thing.. details
  • ObjectMapper mapper new ObjectMapper(); // can reuse, share globally mapper.configure(DeserializationConfig.Feature.FAIL_ON_UNKNOWN_PROPERTIES, false); JsonNode rootNode mapper.readTree(parse); JsonNode firstResult rootNode.get("results").get(0); JsonNode location firstResult.get("locations").get(0); JsonNode latLng location.get("latLng"); String lat latLng.get("lat").asText(); String lng latLng.get("lng").asText();.. details
  • No problem, and sorry to be the harbinger of doom.. details
  • No problem, and sorry to be the harbinger of doom.. details
  • This defect is tracked as URL_https://github.com/FasterXML/jackson-module-scala/issues/122 [Issue-122] .. details
  • This defect is tracked as URL_https://github.com/FasterXML/jackson-module-scala/issues/122 [Issue-122] .. details
  • This defect is tracked as URL_https://github.com/FasterXML/jackson-module-scala/issues/122 [Issue-122] .. details
  • This defect is tracked as URL_https://github.com/FasterXML/jackson-module-scala/issues/122 [Issue-122] .. details
  • The "official" method of configuring this is described here: URL_http://wallsofchange.wordpress.com/2013/02/02/spring-mvc-rest-services-force - jackson-to-serialize-dates-as-iso-8601-dates/.. details
  • I'm attempting to follow the example located URL_http://stackoverflow.com/questions/14734741/converting-json-to-xml-and- vice-versa-using-jackson-api-and-jaxb-annotation [here] but get an javax.xml.bind.PropertyException.. details
  • I'm attempting to follow the example located URL_http://stackoverflow.com/questions/14734741/converting-json-to-xml-and- vice-versa-using-jackson-api-and-jaxb-annotation [here] but get an javax.xml.bind.PropertyException.. details
  • Given that you are using JSON, there are options at various levels, including URL_http://wiki.fasterxml.com/JacksonStreamingApi [ URL_http://wiki.fasterxml.com/JacksonStreamingApi ] or URL_http://argo.sourceforge.net/documentation.html [ URL_http://argo.sourceforge.net/documentation.html ] .. details
  • Given that you are using JSON, there are options at various levels, including URL_http://wiki.fasterxml.com/JacksonStreamingApi [ URL_http://wiki.fasterxml.com/JacksonStreamingApi ] or URL_http://argo.sourceforge.net/documentation.html [ URL_http://argo.sourceforge.net/documentation.html ] .. details
  • I tried using the CODETERM3 and CODETERM4 annotations as well but they don't appear to help, throwing the same exception CODETERM5 .. details
  • This is important because if you try to use the mapper that is (basically) in the context of the CODETERM4 then you will get a stack overflow since it will eventually call these methods over and over.. details
  • I used the CODETERM5 annotation instead of wrapping the functionality in the CODETERM6 because it seemed silly to reinvent the wheel.. details
  • This is important because if you try to use the mapper that is (basically) in the context of the CODETERM4 then you will get a stack overflow since it will eventually call these methods over and over.. details
  • I used the CODETERM5 annotation instead of wrapping the functionality in the CODETERM6 because it seemed silly to reinvent the wheel.. details
  • Next is the actual ContextualSerializer, which does the heavy lifting.. details
  • Next is the actual ContextualSerializer, which does the heavy lifting.. details
  • @ Esteban Araya i have tried this yet same error occurs.. details
  • Gah, sorry - a link to that was supposed to be in there as well (edited), though one of those should have worked (you shouldn't have to annotate your POJOs).. details
  • Gah, sorry - a link to that was supposed to be in there as well (edited), though one of those should have worked (you shouldn't have to annotate your POJOs).. details
  • Also, I'm not sure if Jackson supports dangling CODETERM2 as you have at the end of CODESNIPPET_JAVA2 .. details
  • it gives an error saying: com.fasterxml.jackson.databind.exc.UnrecognizedPropertyException: Unrecognized field "User" I know I can just initialise the User class and just do setters manually but I was wondering if it is possible or better to remove/ignore the "User" node instead?. details
  • it gives an error saying: com.fasterxml.jackson.databind.exc.UnrecognizedPropertyException: Unrecognized field "User" I know I can just initialise the User class and just do setters manually but I was wondering if it is possible or better to remove/ignore the "User" node instead?. details
  • I dont't know about performance compared to Jackson, but it's hard to be simpler than this... Gson is a stable and widely used library.. details
  • I dont't know about performance compared to Jackson, but it's hard to be simpler than this... Gson is a stable and widely used library.. details
  • Someone downvoted this answer.. details
  • You can't blame me or my answer for the existence of a disagreement between jaxb and jackson.. details
  • Someone downvoted this answer.. details
  • Someone downvoted this answer.. details
  • Someone downvoted this answer.. details
  • Someone downvoted this answer.. details
  • Someone downvoted this answer.. details
  • In other cases treat it as JSON and let jackson fire some exceptions is it is not legal JSON syntax.. details
  • In other cases treat it as JSON and let jackson fire some exceptions is it is not legal JSON syntax.. details
  • In other cases treat it as JSON and let jackson fire some exceptions is it is not legal JSON syntax.. details
  • I am using drop wizard which uses Jackson for returning classes as JSON.. details
  • +1 for sure shot answer .. details
  • a Unix timestamp): CODESNIPPET_JAVA1 .. details
  • Not working for me :( still the same... Will try to update to jackson 2.. details
  • Fixed a type (Inclusion rather than Incudsion), but you need at least Jackson 1.9 to use it I'm afraid.. details
  • Your code seems to be deprecated, but I will try it out.. details
  • Your code seems to be deprecated, but I will try it out.. details
  • There is no problem with the int type.. details
  • This is from a streaming parser, so unfortunately it is not read into a jsonNode yet.. details
  • This is from a streaming parser, so unfortunately it is not read into a jsonNode yet.. details
  • There is a constraint on the number of characters in one json object.. details
  • I want to avoid this parse-.toString()-parse chain and replace it by just one parsing.. details
  • I tried doing this too, and there is a mistake in the example code on the Jackson web page that fails to include the type (.class) in the call to addSerializer method, which should read like this: CODESNIPPET_JAVA1 .. details
  • The serialization of the object using Jersey's Jackson default serializers with the added metadata will be the following... CODESNIPPET_JAVA2 .. details
  • I'm using the restlet library and Jackson to send JSON data, and I cannot get the following to return a json object for a List, I get null out of it and no errors: CODESNIPPET_JAVA1 .. details
  • Is there a possibility to force the usage of actual types inside of containers?. details
  • We are using jersey-json version 1.12 and i don't know which annotation could help me to solve this problem.. details
  • My problem was I was using a nested class, which cannot be used with Jackson.. details
  • My problem was I was using a nested class, which cannot be used with Jackson.. details
  • Jackson core isn't enough, you need the Jackson mapper.. details
  • Jackson core isn't enough, you need the Jackson mapper.. details
  • Jackson can be slow when parsing unneeded child values.. details
  • found out what was wrong, I was using Jackson 2.1.2 but my Spring version was still 3.1 hence did not support this version.. details
  • Any idea what I've missed?. details
  • I tried to experiment with mapper.configure(SerializationFeature.WRITE_ENUMS_USING_INDEX, false); but that didn't help either.. details
  • Assume for the sake of argument that the json hierarchy and the java object have been simplified here for clarity, and that in reality they are actually much more complicated so I do not wish to implement a completely custom deserializer.. details
  • FWIW -- I had to import this slightly different enum: org.codehaus.jackson.map .DeserializationConfig.Feature.FAIL_ON_UNKNOWN_PROPERTIES.. details
  • If so, how to I avoid having to parse all the JSON (for example, I just want to delegate all the Duration variables to my already made DurationDeserializer class)?. details
  • The only thing it's having problems with is the withBackoff(Duration, Duration, int) method.. details
  • The exception I get is: CODESNIPPET_JAVA3 .. details
  • The only thing it's having problems with is the withBackoff(Duration, Duration, int) method.. details
  • As long as CODETERM1 is valid JSON and maps to CODETERM2 , this should work.. details
  • As long as CODETERM1 is valid JSON and maps to CODETERM2 , this should work.. details
  • The errors enum contains an int code and a String text.. details
  • I know that if I used Jackson I could do that simply but the problem is that my JSONObject (or rather variables data and data2) are created and modified in many many places - I don't want to to change their type to one from Jackson library.. details
  • Then the line CODETERM1 returns an 'Out Of Memory' error.. details
  • Unfortunately, Jackson is not using each serializer, one for each method, but is using one serializer for both.. details
  • The Ember-Data REST Adapter needs the JSON returned to follow this format: URL_http://jsonapi.org/format/ [ URL_http://jsonapi.org/format/ ] Ember-Data documentation: URL_http://emberjs.com/guides/models/the-rest-adapter/#toc_json-conventions [ URL_http://emberjs.com/guides/models/the-rest-adapter /#toc_json-conventions] I know how to return JSON, say, using Spring MVC 3.2 / Jackson, that's not a problem.. details
  • You can find a sample Django implementation if you google "ember data tastypie adapter" (sorry, not enough reputation points for a link [sic]), and rable also seems to have one.. details
  • source: URL_https://github.com/FasterXML/jackson-jaxrs-providers/ [Git] .. details
  • I debugged the MappingJackson2HttpMessageConverter as Sotirios suggested and there was an exception (No suitable constructor).. details
  • You can also check these answers: CODETERM1 CODETERM2 And if you have problems to deserialize, check this: CODETERM3 Thanks for all the replies.. details
  • I debugged the MappingJackson2HttpMessageConverter as Sotirios suggested and there was an exception (No suitable constructor).. details
  • Setting SubscriptionWrapper to static was the solution to my problem.. details
  • Setting SubscriptionWrapper to static was the solution to my problem.. details
  • I debugged the MappingJackson2HttpMessageConverter as Sotirios suggested and there was an exception (No suitable constructor).. details
  • If you want to use Jackson 2.x, you'll leverage the URL_http://fasterxml.github.io/jackson- databind/javadoc/2.0.0/com/fasterxml/jackson/databind/ObjectMapper.html [CODETERM1-packages] and need to change the code a little bit.. details
  • In browser I found that I have 406 error and error window error[object Object].. details
  • If anyone knows what the problem is, I will be gratfull for help.. details
  • In browser I found that I have 406 error and error window error[object Object].. details
  • If anyone knows what the problem is, I will be gratfull for help.. details
  • It may work on your platform; but it can easily fail on others; hence it is broken.. details
  • It may work on your platform; but it can easily fail on others; hence it is broken.. details
  • It may work on your platform; but it can easily fail on others; hence it is broken.. details
  • Above code is buggy -- does not specify character encoding to use for FileReader, so will probably barf on non-ASCII input.. details
  • With a change to MOXy (and removal of Jackson) I'll get an exception trace similar to the following when asking for JSON output.. details
  • With a change to MOXy (and removal of Jackson) I'll get an exception trace similar to the following when asking for JSON output.. details
  • In serveral posts and SO answers is suggested to exclude CODETERM4 fields from serialization, to break the serialization loop, but I need to serialize params linked to my canvas entities**.. details
  • I'm returning resources in JSON format (using Jackson Mapper), but now I'm stuck with this exception: CODETERM1 I have a "many to many" relationship between CODETERM2 and CODETERM3 entities and I need to serialize also params list when a canvas is requested to the service.. details
  • After adding the annotation jar I am facing the following error : CODESNIPPET_JAVA6 .. details
  • Exception in thread "main" java.lang.NoClassDefFoundError: com/fasterxml/jackson/annotation/JsonAutoDetect Error when trying to convert json to POJO.. details
  • I am a newbie to jackson livbrary and I have no clue why I am having this error.. details
  • I am a newbie to jackson livbrary and I have no clue why I am having this error.. details
  • Exception in thread "main" java.lang.NoClassDefFoundError: com/fasterxml/jackson/annotation/JsonAutoDetect Error when trying to convert json to POJO.. details
  • I have changed the three JARS to 2.1.2 version and the error I am getting now is : CODESNIPPET_JAVA7 .. details
  • What I want to do is to get DuObject.name and store it in a DataSet table; however when I run Databinding class I got the following error : CODESNIPPET_JAVA5 .. details
  • its necessary because of a poor api on server side.. details
  • By curiosity, if you try and read the tree (using mapper.readTree) to a JsonNode, does it work or do you also have an error?. details
  • If an error, which one?. details
  • By curiosity, if you try and read the tree (using mapper.readTree) to a JsonNode, does it work or do you also have an error?. details
  • Or you'll get an error that it can't find the property to set into.. details
  • Or you'll get an error that it can't find the property to set into.. details
  • Or you'll get an error that it can't find the property to set into.. details
  • Or you'll get an error that it can't find the property to set into.. details
  • Or you'll get an error that it can't find the property to set into.. details
  • Or you'll get an error that it can't find the property to set into.. details
  • This may seem a little unusual, but I am looking for an efficient way to transform/map a CODETERM1 into a CODETERM2 .. details
  • As a result of the POST I receive a 400 Incorrect request error.. details
  • The jackson dependency in the pom.xml (I'm using spring 3.1.0.RELEASE): CODESNIPPET_JAVA4 .. details
  • Usually those types of errors are from accidentally importing the wrong type (some other library might have a CODETERM5 class).. details
  • The error I get is: CODESNIPPET_JAVA2 .. details
  • I have found some documentation on what i'm trying to do, but I'm getting an error on compile.. details
  • I have found some documentation on what i'm trying to do, but I'm getting an error on compile.. details
  • Easier way in the long run might be to get used to Jackson or something similar, though.. details
  • Is there any ways to force Jackson parse to Transaction class without adding any stuff to the Transaction class itself (as I get this file as part of a binary jar)?. details
  • There is no problems when I use: CODESNIPPET_JAVA3 .. details
  • URL_http://flexjson.sourceforge.net/javadoc/flexjson/JSONDeserializer.html [ URL_http://flexjson.sourceforge.net/javadoc/flexjson/JSONDeserializer.html ] I'm unfamiliar with Jackson's methods for doing similar things, but I can say that FlexJSON is very performant, and in general intuitive to use during serialization/deserialziation steps.. details
  • My problem is I don't know how to tell Jackson what interface implementation to deserialize to.. details
  • My problem is I don't know how to tell Jackson what interface implementation to deserialize to.. details
  • I don't see anything wrong with how Jackson is handling them.. details
  • Jackson loses time offset from dates when deserializing to JodaTime.. details
  • Is there a way I can modify the custom serializer to use the default serialization for the CODETERM2 class, so that when CODETERM3 changes, I do not have to modify the custom serializer?. details
  • if I remove the type field, I got this:org.codehaus.jackson.map.exc.UnrecognizedPropertyException: Unrecognized field "type" (Class com.chat.jsonobject.Message), not marked as ignorable.. details
  • I've been battling this today and your question inspired me to make it bloody work :D The annotations are here: URL_https://github.com/FasterXML/jackson- annotations/wiki/Jackson-Annotations [ URL_https://github.com/FasterXML/jackson - annotations/wiki/Jackson-Annotations] See JUnit test here: URL_https://gist.github.com/TomDemeranville/7009250 [ URL_https://gist.github.com/TomDemeranville/7009250 ] .. details
  • I've been battling this today and your question inspired me to make it bloody work :D The annotations are here: URL_https://github.com/FasterXML/jackson- annotations/wiki/Jackson-Annotations [ URL_https://github.com/FasterXML/jackson - annotations/wiki/Jackson-Annotations] See JUnit test here: URL_https://gist.github.com/TomDemeranville/7009250 [ URL_https://gist.github.com/TomDemeranville/7009250 ] .. details
  • I've been battling this today and your question inspired me to make it bloody work :D The annotations are here: URL_https://github.com/FasterXML/jackson- annotations/wiki/Jackson-Annotations [ URL_https://github.com/FasterXML/jackson - annotations/wiki/Jackson-Annotations] See JUnit test here: URL_https://gist.github.com/TomDemeranville/7009250 [ URL_https://gist.github.com/TomDemeranville/7009250 ] .. details
  • I've been battling this today and your question inspired me to make it bloody work :D The annotations are here: URL_https://github.com/FasterXML/jackson- annotations/wiki/Jackson-Annotations [ URL_https://github.com/FasterXML/jackson - annotations/wiki/Jackson-Annotations] See JUnit test here: URL_https://gist.github.com/TomDemeranville/7009250 [ URL_https://gist.github.com/TomDemeranville/7009250 ] .. details
  • Strange deserializing problems with generic types using Scala and Jackson and java.lang.Integer or scala.Int.. details
  • But we ran into a strange problem in Scala using Jackson and the Scala Jackson Module.. details
  • But we ran into a strange problem in Scala using Jackson and the Scala Jackson Module.. details
  • I created a small test to show the problem.. details
  • Strange deserializing problems with generic types using Scala and Jackson and java.lang.Integer or scala.Int.. details
  • But we ran into a strange problem in Scala using Jackson and the Scala Jackson Module.. details
  • But we ran into a strange problem in Scala using Jackson and the Scala Jackson Module.. details
  • As the error message indicates, Jackson expects you to write a field name (and not the text directly) while serializing keys.. details
  • As the error message indicates, Jackson expects you to write a field name (and not the text directly) while serializing keys.. details
  • but that fails with a CODETERM5 exception.. details
  • but that fails with a CODETERM5 exception.. details
  • When you have CODETERM2 , the default will json format and the jackson jars will be considered for conversion of your pojo.. details
  • I had the same problem and I solved it by adding the below jackson jars to my classpath.my CODETERM1 CODESNIPPET_JAVA1 .. details
  • Now I'm not able to say is it suitable for me, since It was a long time ago.. details
  • Now I'm not able to say is it suitable for me, since It was a long time ago.. details
  • However, when I try to parse the geo-coordinates I end up with the following error message: com.fasterxml.jackson.databind.JsonMappingException: Can not deserialize instance of com.example.GeoPoint out of START_ARRAY token at [Source: android.content.res.AssetManager$AssetInputStream@416a5850; line: 5, column: 25] (through reference chain: com.example.Location["center"]) .. details
  • However, when I try to parse the geo-coordinates I end up with the following error message: com.fasterxml.jackson.databind.JsonMappingException: Can not deserialize instance of com.example.GeoPoint out of START_ARRAY token at [Source: android.content.res.AssetManager$AssetInputStream@416a5850; line: 5, column: 25] (through reference chain: com.example.Location["center"]) .. details
  • They are way too static, and I can't combine to specify which views to use for nested objects.. details
  • The problem is I want to use MappingJackson2HttpMessageConverter, but I cannot find a way to set the filter provider of list of beanpropertyfilters on it.. details
  • How can I avoid it?. details
  • The problem I am facing is that as the number of requests increase, the time to process the conversion starts increasing.. details
  • Can anyone point out the mistake here?. details
  • parx,pary,parz etc CODETERM2 is the only problem.. details
  • parx,pary,parz etc CODETERM2 is the only problem.. details
  • Running with JAX-RS The following links will help you leverage MOXy in a JAX-RS service: URL_http://blog.bdoughan.com/2012/05/moxy-as-your-jax-rs-json-provider.html [ URL_http://blog.bdoughan.com/2012/05/moxy-as-your-jax-rs-json-provider.html ] URL_http://blog.bdoughan.com/2013/06/moxy-is-new-default-json-binding.html [ URL_http://blog.bdoughan.com/2013/06/moxy-is-new-default-json-binding.html ] .. details
  • It's still not as elegant as I hoped, but at least I got rid of all the ugly casting.Another advantage of this solution is, that my domain class ( CODETERM2 ) is not polluted with any Jackson annotations.. details
  • It's still not as elegant as I hoped, but at least I got rid of all the ugly casting.Another advantage of this solution is, that my domain class ( CODETERM2 ) is not polluted with any Jackson annotations.. details
  • When calling the URL_http://www.flickr.com/services/api/flickr.test.login.html [CODETERM1] method, the default JSON result is: CODESNIPPET_JAVA1 .. details
  • but when i am parsing it gives error.I used jackson for parsing CODESNIPPET_JAVA2 .. details
  • but when i am parsing it gives error.I used jackson for parsing CODESNIPPET_JAVA2 .. details
  • Here's an example: two classes which I need to serialize to JSON & XML(removed JPA annotations for clarity): Relationship User ->(one-to-many) AddressInformation;Also: AddressInformation ->(one-to-one) User** CODESNIPPET_JAVA1 .. details
  • I have tried to use 'ignore null' functionality by returning null for that exact value, but unfortunately that kills the beans reusability) .. details
  • I have tried to use 'ignore null' functionality by returning null for that exact value, but unfortunately that kills the beans reusability) .. details
  • We went with gson first and when switching to jackson it was nearly a drop-in replacement, they were both equally easy to use, and orders of magnitude easier to use than JSONObject.. details
  • When I call this method I will get a 400 error (bad request) because the type of Container is erased at runtime and Jackson doesn't know how to map my containerItem (since it has no idea what type to map to).. details
  • When I call this method I will get a 400 error (bad request) because the type of Container is erased at runtime and Jackson doesn't know how to map my containerItem (since it has no idea what type to map to).. details
  • If you can add CODETERM5 annotation on member you want to use instead of whole object (either directly, or via mix-in), that should do the trick: CODESNIPPET_JAVA3 .. details
  • The top level exception Throwable implements Serializable interface, and also has some constructors that add info about what is to be serialized.. details
  • Here I also expect to see my type and severity fields.. details
  • Here is my custom exception code: CODESNIPPET_JAVA1 .. details
  • I'm trying to serialize a custom Exception in Java using writeValueAsString() method from Jackson library.. details
  • The top level exception Throwable implements Serializable interface, and also has some constructors that add info about what is to be serialized.. details
  • My application code is a little more complicated.. details
  • Even if I wanted to, writing a custom serializer for OtherClass would be extremely complex because it is an abstract root class.. details
  • However, I receive the following error: CODESNIPPET_JAVA5 .. details
  • See further URL_http://wiki.fasterxml.com/JacksonAnnotations [Jackson- Annotations] edit: Sorry, just saw the wrapper-comment.. details
  • See further URL_http://wiki.fasterxml.com/JacksonAnnotations [Jackson- Annotations] edit: Sorry, just saw the wrapper-comment.. details
  • You are using Jackson 2.x, classes of which live in CODETERM1 package; but as per exception, ones in CODETERM2 are needed.. details
  • Exception indicates that some other library or framework is using Jackson 1.x, and requires 1.x jars.. details
  • You are using Jackson 2.x, classes of which live in CODETERM1 package; but as per exception, ones in CODETERM2 are needed.. details
  • Exception indicates that some other library or framework is using Jackson 1.x, and requires 1.x jars.. details
  • I am confused.. details
  • I got Jackson 2.2.3 in my buildpath but i still get this error.. details
  • I got Jackson 2.2.3 in my buildpath but i still get this error.. details
  • I'll just give a little URL_http://jackson.codehaus.org/ [Jackson] example: First create a data holder which has the fields from JSON string CODESNIPPET_JAVA1 .. details
  • I'll just give a little URL_http://jackson.codehaus.org/ [Jackson] example: First create a data holder which has the fields from JSON string CODESNIPPET_JAVA1 .. details
  • i've already read some of your articles regarding the subject, but it seems i overlooked this one.. details
  • This is adapted from a bug report for Jackson here: URL_https://jira.springsource.org/browse/SPR-10552 [ URL_https://jira.springsource.org/browse/SPR-10552 ] CODESNIPPET_JAVA1 .. details
  • If serialization is the only part to be ignored then JsonIgnore annotation need to be used in the getter method and also need to add JsonProperty annotation to the field or setter method to avoid ignoring deserialization and vise-versa.. details
  • If serialization is the only part to be ignored then JsonIgnore annotation need to be used in the getter method and also need to add JsonProperty annotation to the field or setter method to avoid ignoring deserialization and vise-versa.. details
  • Plug this in Jackson's CODETERM4 as follows (using a URL_http://fasterxml.github.io/jackson- databind/javadoc/2.2.0/com/fasterxml/jackson/databind/Module.html [CODETERM5] ): CODESNIPPET_JAVA2 .. details
  • From URL_http://jackson.codehaus.org/1.5.7/javadoc/org/codehaus/jackson/annota te/JsonIgnoreProperties.html [JavaDoc] : Annotation that can be used to either suppress serialization of properties (during serialization), or ignore processing of JSON properties read (during deserialization).. details
  • From URL_http://jackson.codehaus.org/1.5.7/javadoc/org/codehaus/jackson/annota te/JsonIgnoreProperties.html [JavaDoc] : Annotation that can be used to either suppress serialization of properties (during serialization), or ignore processing of JSON properties read (during deserialization).. details
  • It would work with JPA providers to just instantiate an empty object and set only the ID for deserialization but unsure how I might be able to coerce the jackson deserializer to do this without defining a custom deserializer for each possible reference type.. details
  • The output in the map, unfortunately, will be: CODESNIPPET_JAVA3 .. details
  • The JSON is rather large and heavily nested, so regular expression replacements of the incoming JSON or creating a new map manually after the Jackson parsing is not at all desired.. details
  • [UPDATE] The answer I gave below doesn't fully solve the problem.. details
  • The JSON is rather large and heavily nested, so regular expression replacements of the incoming JSON or creating a new map manually after the Jackson parsing is not at all desired.. details
  • It is confusing and it may cause issues with your API because the client needs to do extra work to configure its serializer to distinguish those two states too.. details
  • It is confusing and it may cause issues with your API because the client needs to do extra work to configure its serializer to distinguish those two states too.. details
  • The problem is I want to know when a user sent me a query with only the field CODETERM2 and when he sent a query with field CODETERM3 set to CODETERM4 .. details
  • What is the better way to do this (and to avoid writing my own deserializer)?. details
  • You can also configure whether Jackson is to use Java timestamp (milliseconds since 1.1.1970) or textual format; I don't remember which one is default.. details
  • Just a little summary: As you know you will need the Jackson library in the class path so that Objects can be converted to JSON.. details
  • With the streaming API, you can use URL_http://fasterxml.github.io/jackson-cor e/javadoc/2.1.0/com/fasterxml/jackson/core/JsonGenerator.html#copyCurrentEvent %28com.fasterxml.jackson.core.JsonParser%29 [CODETERM1] to easily re-output the token stream with whatever pretty-printing applied you want, including the default of no whitespace; this avoids buffering the entire document in memory and building a tree for the document.. details
  • I'm afraid the first part of his answer is more about bi directional relationship than my problem.. details
  • although this thread is a little old... u need to add the following (maven dependency): org.codehaus.jacksonjackson-mapper-asl1.9.13 .. details
  • See URL_http://stackoverflow.com/questions/10065002 /jackson-serialization-of-entities-with-birectional-relationships-avoiding- cyc.. details
  • I get the this exception: CODESNIPPET_JAVA2 .. details
  • Now the code below I would expect to look at the JSON data and then grab the "users" array list of objects, I then for now wanted to simply print the name of each user to the LogCat to review that it works and as explained earlier I am looking to use the "" method as the data is quite large and I want to avoid memory issues.. details
  • However the code above doesn't work in its current state and I get the following errors from Jackson: CODESNIPPET_JAVA4 .. details
  • The error I get is below along with the line that it shows on: Error Line: CODESNIPPET_JAVA6 .. details
  • Error Code: CODESNIPPET_JAVA7 .. details
  • There was a bug in an earlier version, but that would have been 1.5 or 1.6.. details
  • There was a bug in an earlier version, but that would have been 1.5 or 1.6.. details
  • This may look a dumb question, but I would like to deserialize a JSON object to a POJO CODETERM1 with a field named CODETERM2 , which is a reserved keyword in Java.... details
  • I am generating my restful resource JSON representation using jackson and it works very well as far as standard property conversion is concerned.. details
  • sorry, forgot those.. jackson 1.9.5.. details
  • What I am getting as simply that of reproducing the problem.. details
  • and vice versa CODESNIPPET_JAVA2 .. details
  • Jackson's default jsoin properties start with a lowercase letter.. details
  • However, I get an error CODESNIPPET_JAVA2 .. details
  • From the tutorial I had the impression that this should work (simplified example): CODESNIPPET_JAVA1 .. details
  • From the tutorial I had the impression that this should work (simplified example): CODESNIPPET_JAVA1 .. details
  • Getting the below mention exception in json-schema-validator 2.1.7 jar: CODESNIPPET_JAVA1 .. details
  • If you are using jackson 2+ (com.fasterxml.jackson), the methods are little bit different, CODESNIPPET_JAVA1 .. details
  • Here's a place to start: URL_http://blog.springsource.org/2013/06/03/content-negotiation-using-views/ [ URL_http://blog.springsource.org/2013/06/03/content-negotiation-using-views/ ] Basically, you use a MappingJacksonView and a similar one for XML, which is a "fake" view that uses Jackson (or an XML marshaller) to marshall your POJO(s) to the correct format.. details
  • And the reason for issue is that by default Jackson uses enum.name() as the id -- and in this case, name is "COINS", not lowe-case "coins".. details
  • And the reason for issue is that by default Jackson uses enum.name() as the id -- and in this case, name is "COINS", not lowe-case "coins".. details
  • provide a static factory method in your enumeration class that constructs enum by string.. details
  • Explanation For Jackson to work well, one of the two sides of the relationship should not be serialized, in order to avoid the infite loop that causes your stackoverflow error.. details
  • Explanation For Jackson to work well, one of the two sides of the relationship should not be serialized, in order to avoid the infite loop that causes your stackoverflow error.. details
  • Since Jackson 1.6 you can use two annotations to solve the infinite recursion problem without ignoring the getters/setters during serialization: URL_http://wiki.fasterxml.com/JacksonFeatureBiDirReferences [CODETERM1-and- CODETERM2] .. details
  • Sources: URL_http://keenformatics.blogspot.it/2013/08/how-to-solve-json-infinite-recursion.html [Keenformatics---How-To-Solve-JSON-infinite-recursion-Stackoverflow] (my blog) URL_http://wiki.fasterxml.com/JacksonFeatureBiDirReferences [Jackson-References] Personal experience .. details
  • Sources: URL_http://keenformatics.blogspot.it/2013/08/how-to-solve-json-infinite-recursion.html [Keenformatics---How-To-Solve-JSON-infinite-recursion-Stackoverflow] (my blog) URL_http://wiki.fasterxml.com/JacksonFeatureBiDirReferences [Jackson-References] Personal experience .. details
  • Since Jackson 1.6 you can use two annotations to solve the infinite recursion problem without ignoring the getters/setters during serialization: URL_http://wiki.fasterxml.com/JacksonFeatureBiDirReferences [CODETERM1-and- CODETERM2] .. details
  • You can change your code like this (I skip the useless parts): Business Object 1:** CODESNIPPET_JAVA1 .. details
  • So, I just dropped the idea of binding directly :| ) Anyways URL_http://pastebin.com/dnrMqGeQ [here] (PasteBin Link) is the bean as well.. details
  • (IMO it appeared way more complex to me as because of the JSON structure; Moreover I can't change the JSON structure nor the bean structure.. details
  • But I am facing a problem while parsing using a custom deserialization block made up of: CODESNIPPET_JAVA2 .. details
  • This is all happening in memory, so the entire JSON string is loaded into the memory and transformed into the object.. details
  • Using CODETERM1 , I read everything into the memory and transform the JSON string to object.. details
  • This is all happening in memory, so the entire JSON string is loaded into the memory and transformed into the object.. details
  • without loading the entire JSON string into the memory, I should still be able to load the object.. details
  • The problem is that when I serialize this JSON, I get a duplicate CODETERM1 field: CODESNIPPET_JAVA3 .. details
  • I have tried using the recommendation of URL_http://stackoverflow.com/questions/13262662/duplicate-json-property-when- converting-java-object-to-json-string-using-jackson [previous] URL_http://stackoverflow.com/questions/7105745/how-to-specify-jackson-to-only- use-fields-preferably-globally [answers] to use the CODETERM2 annotation to specify that only fields on a class should be used as well as setting the same on the CODETERM3 , however this does not fix the problem.. details
  • This URL_http://wiki.fasterxml.com/JacksonFeatureCreators [Jackson-wiki-page] gives little information but does offer sample code: CODESNIPPET_JAVA1 .. details
  • This URL_http://wiki.fasterxml.com/JacksonFeatureCreators [Jackson-wiki-page] gives little information but does offer sample code: CODESNIPPET_JAVA1 .. details
  • But the CODETERM2 you get during deserialization seems suspicious to me (Jackson should ideally be able to handle CODETERM3 values in the serialized output).. details
  • Question _How to avoid this exception or to pledge Jackson ignore null-values during serialization?_ Throws: _**Message:**_ _com.fasterxml.jackson.databind.MessageJsonException: com.fasterxml.jackson.databind.JsonMappingException: N/A (through reference chain: person.Create["person"]->Person["firstName"])_..... _**cause:**_ _com.fasterxml.jackson.databind.MessageJsonException: com.fasterxml.jackson.databind.JsonMappingException: N/A (through reference chain: prson.Create["person"]->Person["firstName"])_ _**cause:**_ _java.lang.NullPointerException_ .. details
  • I am unclear where I could specify the object mapping part for hashmap CODESNIPPET_JAVA2 .. details
  • URL_http://stackoverflow.com/questions/5591967/jackson-date-deserialization [Jackson-date-deserialization] The problem I am facing right now would be the mapping of sql objects to a hashmap instead of a POJO.. details
  • I have a problem with jackson outputting my date in the below format.. details
  • URL_http://jackson.codehaus.org/1.9.9/javadoc/org/codehaus/jackson/annotate/Js onUnwrapped.html [ URL_http://jackson.codehaus.org/1.9.9/javadoc/org/codehaus/jacks on/annotate/JsonUnwrapped.html] The downside of using this annotation is the inability to use maps as stated in the URL_http://stackoverflow.com/questions/18043587/why-im-not-able-to- unwrapp-and-serialize-java-map-using-jackson-java-library [answer-to-your- other-question] .. details
  • URL_http://jackson.codehaus.org/1.9.9/javadoc/org/codehaus/jackson/annotate/Js onUnwrapped.html [ URL_http://jackson.codehaus.org/1.9.9/javadoc/org/codehaus/jacks on/annotate/JsonUnwrapped.html] The downside of using this annotation is the inability to use maps as stated in the URL_http://stackoverflow.com/questions/18043587/why-im-not-able-to- unwrapp-and-serialize-java-map-using-jackson-java-library [answer-to-your- other-question] .. details
  • The module only deals with UnknownPart objects: private static class MyModule extends Module { CODESNIPPET_JAVA5 .. details
  • The current implementation uses JSONObject to read/write and supports jackson to read json and map it to "real" Java object (POJOs and more complex objects).While writing full Json strings with jackson is not a problem, updating an existing string with a Java object that only represents a small part of it is much harder.. details
  • without losing the data I didn't read when I save.Obviously, I don't want to read a 2nd time the data because I'm reading this from a remote host and I don't want to cache it in some static/instance map because I need this to be still very effective in a highly concurrent environment.. details
  • The module only deals with UnknownPart objects: private static class MyModule extends Module { CODESNIPPET_JAVA5 .. details
  • Data store problem: CODESNIPPET_JAVA2 .. details
  • The current implementation uses JSONObject to read/write and supports jackson to read json and map it to "real" Java object (POJOs and more complex objects).While writing full Json strings with jackson is not a problem, updating an existing string with a Java object that only represents a small part of it is much harder.. details
  • Links bellow: GSON: URL_https://sites.google.com/site/gson/gson-user-guide [ URL_https://sites.google.com/site/gson/gson-user-guide ] URL_http://www.mkyong.com/java/how-do-convert-java-object-to-from-json-format- gson-api/ [ URL_http://www.mkyong.com/java/how-do-convert-java-object-to-from-json - format-gson-api/] URL_http://albertattard.blogspot.co.at/2009/06/practical- example-of-gson.html [ URL_http://albertattard.blogspot.co.at/2009/06/practical - example-of-gson.html] Jackson: URL_http://jackson.codehaus.org/Tutorial [ URL_http://jackson.codehaus.org/Tutorial ] URL_http://www.mkyong.com/java/how-to- convert-java-object-to-from-json-jackson/ [ URL_http://www.mkyong.com/java/how-to - convert-java-object-to-from-json-jackson/] Now you have to understand that using these tools is not just "for the lazy".. details
  • Links bellow: GSON: URL_https://sites.google.com/site/gson/gson-user-guide [ URL_https://sites.google.com/site/gson/gson-user-guide ] URL_http://www.mkyong.com/java/how-do-convert-java-object-to-from-json-format- gson-api/ [ URL_http://www.mkyong.com/java/how-do-convert-java-object-to-from-json - format-gson-api/] URL_http://albertattard.blogspot.co.at/2009/06/practical- example-of-gson.html [ URL_http://albertattard.blogspot.co.at/2009/06/practical - example-of-gson.html] Jackson: URL_http://jackson.codehaus.org/Tutorial [ URL_http://jackson.codehaus.org/Tutorial ] URL_http://www.mkyong.com/java/how-to- convert-java-object-to-from-json-jackson/ [ URL_http://www.mkyong.com/java/how-to - convert-java-object-to-from-json-jackson/] Now you have to understand that using these tools is not just "for the lazy".. details
  • Links bellow: GSON: URL_https://sites.google.com/site/gson/gson-user-guide [ URL_https://sites.google.com/site/gson/gson-user-guide ] URL_http://www.mkyong.com/java/how-do-convert-java-object-to-from-json-format- gson-api/ [ URL_http://www.mkyong.com/java/how-do-convert-java-object-to-from-json - format-gson-api/] URL_http://albertattard.blogspot.co.at/2009/06/practical- example-of-gson.html [ URL_http://albertattard.blogspot.co.at/2009/06/practical - example-of-gson.html] Jackson: URL_http://jackson.codehaus.org/Tutorial [ URL_http://jackson.codehaus.org/Tutorial ] URL_http://www.mkyong.com/java/how-to- convert-java-object-to-from-json-jackson/ [ URL_http://www.mkyong.com/java/how-to - convert-java-object-to-from-json-jackson/] Now you have to understand that using these tools is not just "for the lazy".. details
  • Links bellow: GSON: URL_https://sites.google.com/site/gson/gson-user-guide [ URL_https://sites.google.com/site/gson/gson-user-guide ] URL_http://www.mkyong.com/java/how-do-convert-java-object-to-from-json-format- gson-api/ [ URL_http://www.mkyong.com/java/how-do-convert-java-object-to-from-json - format-gson-api/] URL_http://albertattard.blogspot.co.at/2009/06/practical- example-of-gson.html [ URL_http://albertattard.blogspot.co.at/2009/06/practical - example-of-gson.html] Jackson: URL_http://jackson.codehaus.org/Tutorial [ URL_http://jackson.codehaus.org/Tutorial ] URL_http://www.mkyong.com/java/how-to- convert-java-object-to-from-json-jackson/ [ URL_http://www.mkyong.com/java/how-to - convert-java-object-to-from-json-jackson/] Now you have to understand that using these tools is not just "for the lazy".. details
  • Assuming you're using Java, Jackson let you exclude fields using annotations.. details
  • But is this really a problem in this case, what would you recommend?. details
  • But is this really a problem in this case, what would you recommend?. details
  • As I recall, Gson does handle inner class (de)serialization a little differently than Jackson.. details
  • One additional comment: make absolutely sure you reuse ObjectMapper -- it is a heavy-weight object and should not be created once per request.. details
  • I have a very complex Json object that I get as a String: CODESNIPPET_JAVA1 .. details
  • This problem is not recursive.. details
  • This problem is not recursive.. details
  • will definitely give it a shot.. details
  • I also had to exclude jackson-core-asl from the hadoop core dependency.. details
  • The exclusion mechanism worked when facing this error with hadoop.. details
  • I also had to exclude jackson-core-asl from the hadoop core dependency.. details
  • This will help you avoid the issue all together.. details
  • This will help you avoid the issue all together.. details
  • This will help you avoid the issue all together.. details
  • This will help you avoid the issue all together.. details
  • The problem with this solution is that it is not REST compliant.. details
  • I have "solved" the problem by building custom URLs.. details
  • The problem is: how do I know which fields need to be updated?. details
  • However, when I attempt to deserialize this JSON with Jackson, it fails with the following error: CODESNIPPET_JAVA4 .. details
  • This would suggest that it is getting confused about the value in the map where Jackson decided no type information is necessary, and thus didn't wrap it in an array.. details
  • (shameless plug) And if you want to use URL_http://tools.ietf.org/html/rfc6901 [JSON-Pointer] to navigate your JSON, URL_https://github.com/fge/jackson- coreutils [you-can-also-do-that] : CODESNIPPET_JAVA2 .. details
  • and I get: Exception in thread "main" java.lang.NoSuchMethodError: com.fasterxml.jackson.. details
  • and I get: Exception in thread "main" java.lang.NoSuchMethodError: com.fasterxml.jackson.. details
  • and I get: Exception in thread "main" java.lang.NoSuchMethodError: com.fasterxml.jackson.. details
  • and I get: Exception in thread "main" java.lang.NoSuchMethodError: com.fasterxml.jackson.. details
  • I've also tried adding CODETERM1 to the Filters class and get the same errors.. details
  • Jackson looks for default constructor by default.. details
  • I have a problem using the Jackson serialization from json, how do I serialize from CODETERM1 The error I get is: CODESNIPPET_JAVA1 .. details
  • I have a problem using the Jackson serialization from json, how do I serialize from CODETERM1 The error I get is: CODESNIPPET_JAVA1 .. details
  • Sorry, I didn't see this comment @ProgrammerBruce ... details
  • The person object however is quite complex and we could refresh it on the server side, so all we need is the primary key.. details
  • Sorry, I forgot to mention that ND2Customer is a nested class defined right before the @Test public void TestJackson().. details
  • Perhaps I'm wrong in this case, but aren't serialized classes supposed to implement Serializable?. details
  • Debatable : URL_http://stackoverflow.com/q/11522946/106261 .. details
  • With this snippet the table when I start the application just goes gray and nothing happens, looked thru the debugger and no errors either.. details
  • would do the trick.. details
  • Since 'value' can be either a single value or an object, I'm having a bit of difficult figuring out what it should be.. details
  • Trouble with this is that in the real world code there are many more attributes, I want all the rest to map naturally, and just to exclude this one field.. details
  • Trouble with this is that in the real world code there are many more attributes, I want all the rest to map naturally, and just to exclude this one field.. details
  • Indeed Genson is a new lib and Genson has most of Jackson features and others, for a new library I think it is quite serious!. details
  • The real extension is done by the users and in the Jackson case it is really hard for a user to add new features.. details
  • The real extension is done by the users and in the Jackson case it is really hard for a user to add new features.. details
  • If you're concerned about overhead could you consider logging smaller sets to a database or alternative storage?. details
  • If you're running out of memory parsing JSON it sounds like you could break your logs into packets and avoid the overhead.. details
  • If you're running out of memory parsing JSON it sounds like you could break your logs into packets and avoid the overhead.. details
  • I've had success with the JacksonTreeModel to this end: URL_http://wiki.fasterxml.com/JacksonTreeModel , but this is still a lot of code for little function.. details
  • I've had success with the JacksonTreeModel to this end: URL_http://wiki.fasterxml.com/JacksonTreeModel , but this is still a lot of code for little function.. details
  • It also isn't known to be bundled by OEMs, which can mess with your classpath.. details
  • Finally, if you decide that enough is enough, and decide to use a JSON library (you really should do that), go with URL_https://github.com/FasterXML/jackson- databind [Jackson] , which can read even such malformed JSON: CODESNIPPET_JAVA3 .. details
  • Finally, if you decide that enough is enough, and decide to use a JSON library (you really should do that), go with URL_https://github.com/FasterXML/jackson- databind [Jackson] , which can read even such malformed JSON: CODESNIPPET_JAVA3 .. details
  • I don't really recommend this... not only is it unnecessary automatic serialization/deserialization but it will probably end up being more lines of code.. details
  • I don't really recommend this... not only is it unnecessary automatic serialization/deserialization but it will probably end up being more lines of code.. details
  • We need to process some broken JSON from a legacy server here that wrongly encodes CODETERM1 values as literal CODETERM2 strings in its output.. details
  • Format B (JSON object, yes I know it looks "wrong" but it's what I'm given): CODESNIPPET_JAVA2 .. details
  • I want avoid directly tampering with the JSON itself.. details
  • Is there some configuration in Jackson I can tamper with in order to make it accept B ?. details
  • Is there a way to make Jackson interpret single JSON object as an array with one element and vice versa?. details
  • Example, I have 2 slightly different formats of JSON, I need both to map to same Java object: Format A (JSON array with one element): CODESNIPPET_JAVA1 .. details
  • I tried using ObjectMapper, but this does not seem correct.. details
  • I disagree with Nishant.. details
  • You are doing it wrong.. details
  • The above code gave me error on jsonSetter: CODESNIPPET_JAVA4 .. details
  • You can use a CODETERM3 to make it a little cleaner as regards the generics.. details
  • URL_http://stackoverflow.com/questions/5613566/spring-rest-mappingjacksonhttpmessageconverter-produces-invalid-json [Spring-REST-|-MappingJacksonHttpMessageConverter-produces-invalid-JSON] 8.. details
  • URL_http://stackoverflow.com/questions/5613566/spring-rest-mappingjacksonhttpmessageconverter-produces-invalid-json [Spring-REST-|-MappingJacksonHttpMessageConverter-produces-invalid-JSON] 8.. details
  • The controller This is where your REST API for a HTTP post request is exposed.. details
  • If the conversion fails then do something with the intermediate string, else proceed normally.. details
  • It is expected that the server response is text containing valid json, such as: CODETERM1 However, if the response ends up being invalid json or not json at all such as: CODETERM2 the JsonParser will eventually throw an exception.. details
  • It is expected that the server response is text containing valid json, such as: CODETERM1 However, if the response ends up being invalid json or not json at all such as: CODETERM2 the JsonParser will eventually throw an exception.. details
  • In this case I would like to be able to extract the underlying invalid text " CODETERM3 " out of the JsonParser so it can be used for another purpose.. details
  • I'm not clear from your description but the string you show cannot be "JSON- formatted" if it has a function unless the function itself is represented as a string like "function () {}".. details
  • However I don't like the cast there, is there the possibility for a CODETERM1 ?Is there a method equivalent to CODETERM2 in CODETERM3 so that I have proper error handling in case it isn't an array?. details
  • However I don't like the cast there, is there the possibility for a CODETERM1 ?Is there a method equivalent to CODETERM2 in CODETERM3 so that I have proper error handling in case it isn't an array?. details
  • It seems to be the right solution to my problem.. details
  • It seems to be the right solution to my problem.. details
  • It seems to be the right solution to my problem.. details
  • It seems to be the right solution to my problem.. details
  • @OldCurmudgeon I think that this is the default behavior of jackson: single- elemented array is put in as the element, without the enclosing array.. details
  • I got this error too when switching from jackson 2.1.5 to 2.2.0 (or 2.2.1), try downgrading jackson to 2.1.5?. details
  • Unfortunately @JsonValue wouldn't really solve the problem since, if I was only serializing Customer on its own, I would expect the record to be fully serialized.. details
  • Also "I am now required to use Ant to build the app" seems like a pathological requirement to me if you already have a working build script.. details
  • I'm trying to deserialize it to a complex object with Jackson 1.9.11.. details
  • I also tried to use the mapper.configure but none of the features of Jsonparser worked What Am I doing wrong?. details
  • Where RawResult is a class with a Template and RawCatalogs its a class with nested Objects, it used to deserialize the response correctly, but now it's showing the error in the title.. details
  • I'm facing an Strange problem, I'm very new to Android and Json.. details
  • So my question is why It is showing that error?. details
  • Where RawResult is a class with a Template and RawCatalogs its a class with nested Objects, it used to deserialize the response correctly, but now it's showing the error in the title.. details
  • So my question is why It is showing that error?. details
  • I searched similar questions on stackoverflow, all seemed about an Encoding Error but is not the same code error and also I have not control over the WCF.. details
  • Jackson will normally run into problems when serializing complex objects with lots of internal state and/or non-standard getter/setter methods.. details
  • Jackson will normally run into problems when serializing complex objects with lots of internal state and/or non-standard getter/setter methods.. details
  • Is there any restriction on the minimum size of the data that should be present in ByteBuffer so that Jackson will be able to serialize it ?. details
  • Exception stack trace: CODESNIPPET_JAVA2 .. details
  • But getting following exception: CODESNIPPET_JAVA1 .. details
  • I have tried CODETERM1 from URL_http://stackoverflow.com/questions/4765570 /suppress-wrapper-object-when-serializing-java-object-into-json-using-jackson [Suppress-wrapper-object-when-serializing-Java-object-into-JSON-using-Jackson] .. details
  • Well why not skip Jackson entirely and grab the output directly from jersey.. details
  • So if you wanted unknown JSON fields to throw an exception, you'd have to do that yourself.. details
  • So if you wanted unknown JSON fields to throw an exception, you'd have to do that yourself.. details
  • Does Jackson has something to convert List of String by default CODETERM1 ?. details
  • Although I donot get the exception, but my restFulCityList is null** which is not desired Please help .. details
  • But the issue is: I am getting the following exception CODESNIPPET_JAVA4 .. details
  • Although I donot get the exception, but my restFulCityList is null** which is not desired Please help .. details
  • I realize this question is from a while back, but for future reference, objectMapper.getSerializationConfig().setDateFormat(df) is now deprecated.. details
  • Secondly, I have experienced these strange problems with CODETERM1 , if possible use URL_http://jackson.codehaus.org/ [Jackson] .. details
  • Secondly, I have experienced these strange problems with CODETERM1 , if possible use URL_http://jackson.codehaus.org/ [Jackson] .. details
  • Adding jackson-jaxrs-1.9.2.jar solve this error below CODESNIPPET_JAVA2 .. details
  • Edit: TypeResolver and TypeIdResolver seems to intrinsically assume that type info is serialized, so those aren't good to use.. details
  • Finally, we should write a little test: CODESNIPPET_JAVA3 .. details
  • Finally, we should write a little test: CODESNIPPET_JAVA3 .. details
  • However, it's a bit ugly.. details
  • The deserialization fails because, during deserialization, Jackson is unable to find the polymorphic reference type.. details
  • At first, that seemed to work, but resulted in a problem.. details
  • As it's undesirable for Producer to have any kind of knowledge of Jackson/serialization aside from a thin layer at the very top, serialization attributes should be kept out of the Thing implementations.. details
  • While it did indeed solve the problem by serializing the fields instead of the name, it did it _too_ well as it also began serializing the implementation- specific public fields not defined in the Thing interface, resulting not only in information leak, but also failed deserialization in Consumer due to the data containing unknown entries.. details
  • Is there any way, simply by altering the interface itself and its annotations, to enforce that exactly those fields, no more, no less, should be serialized both when it comes to classes and enums?. details
  • The actual scenario is considerably more complex.). details
  • At first, that seemed to work, but resulted in a problem.. details
  • As further googling didn't yield any results, the only solution I can think of is marking all those fields as ignorable, something that is extremely undesirable due to the previously mentioned reasons.. details
  • The log says, that there is some invalid utf-8.. details
  • Syso of my urlParameters (MessageDto as JSON): CODESNIPPET_JAVA3 .. details
  • I get this error: CODESNIPPET_JAVA4 .. details
  • I get this error: CODESNIPPET_JAVA4 .. details
  • I'm have manually checked that the Class is in the war.. details
  • It kinda sucks that i had to substring the (String)key so i can set the appropriate values of FooTypes to my object and then return it from the factory method.. details
  • Which makes me think the actual error might be caused by the way you call jackson.. details
  • I'm guessing I could organize my JSON a bit better, but ideally I want to be able to grab an object by it's number, and get the "enterInfo" and "exitNodes" back.. details
  • And here is what I have working so far, I realize that I'm not even close to achieving my goal here, but I'm out of ideas and the documentation is starting to get confusing, so I've removed my attempts to isolate one of the objects in the JSON file and instantiate an "ObjectTest" object: CODESNIPPET_JAVA3 .. details
  • Again, sorry if this is a duplicate, I've read through numerous posts already, but I'm new here... EDIT: I'm realizing now that my JSON file should probably be organized more like this: CODESNIPPET_JAVA5 .. details
  • See the APIs for URL_http://fasterxml.github.io/jackson- databind/javadoc/2.1.0/com/fasterxml/jackson/databind/ObjectMapper.html [ObjectMapper] and URL_http://fasterxml.github.io/jackson-databind/javadoc/2.1 .0/com/fasterxml/jackson/databind/DeserializationFeature.html#FAIL_ON_UNKNOWN_ PROPERTIES [DeserializationFeature] for more information.. details
  • See the APIs for URL_http://fasterxml.github.io/jackson- databind/javadoc/2.1.0/com/fasterxml/jackson/databind/ObjectMapper.html [ObjectMapper] and URL_http://fasterxml.github.io/jackson-databind/javadoc/2.1 .0/com/fasterxml/jackson/databind/DeserializationFeature.html#FAIL_ON_UNKNOWN_ PROPERTIES [DeserializationFeature] for more information.. details
  • Jackson (with major version 1, but 2 is already available, check at the website): CODESNIPPET_JAVA4 .. details
  • In response to @sikorski From URL_http://wiki.fasterxml.com/JacksonDataBinding [Jackson-Wiki] : Data binding is built using Streaming API as the underlying JSON reading/writing system: as such it has high-performance [...], but has some additional overhead compared to pure streaming/incremental processing This is pretty much inevitable.. details
  • In response to @sikorski From URL_http://wiki.fasterxml.com/JacksonDataBinding [Jackson-Wiki] : Data binding is built using Streaming API as the underlying JSON reading/writing system: as such it has high-performance [...], but has some additional overhead compared to pure streaming/incremental processing This is pretty much inevitable.. details
  • In response to @sikorski From URL_http://wiki.fasterxml.com/JacksonDataBinding [Jackson-Wiki] : Data binding is built using Streaming API as the underlying JSON reading/writing system: as such it has high-performance [...], but has some additional overhead compared to pure streaming/incremental processing This is pretty much inevitable.. details
  • In response to @sikorski From URL_http://wiki.fasterxml.com/JacksonDataBinding [Jackson-Wiki] : Data binding is built using Streaming API as the underlying JSON reading/writing system: as such it has high-performance [...], but has some additional overhead compared to pure streaming/incremental processing This is pretty much inevitable.. details
  • I would just say use a JSON parser like GSON or Jackson, the thing is by doing that you'll have to receive the entire String and parse it by hand each time (pain!).. details
  • So you could declare a dumb object of CODETERM1 in Java and it will parse without you having to actually write any code intermediately to interpret the JSON string into an object.. details
  • I would just say use a JSON parser like GSON or Jackson, the thing is by doing that you'll have to receive the entire String and parse it by hand each time (pain!).. details
  • I just downloaded the latest jackson-module-jsonSchema (2.2.0) and was wondering if anyone might be able to provide an example for generating a schema for a complex Java type (e.g.. details
  • Jackson JSON schema generation of complex Java type.. details
  • The problem that I'm having is that the Things contained in the Listing in the sample code above are not parametrized with Link, so their data field is returned as an Object (which is actually LinkedHashMap).. details
  • Check out the URL_http://jackson.codehaus.org/1.4.0/javadoc/org/codehaus/jackson/annotate/JsonIgnoreProperties.html [documentation] , most notably what is said about the "ignoreUnknown" property, defaulted to false: public abstract boolean ignoreUnknown Property that defines whether it is ok to just ignore any unrecognized properties during deserialization.. details
  • Check out the URL_http://jackson.codehaus.org/1.4.0/javadoc/org/codehaus/jackson/annotate/JsonIgnoreProperties.html [documentation] , most notably what is said about the "ignoreUnknown" property, defaulted to false: public abstract boolean ignoreUnknown Property that defines whether it is ok to just ignore any unrecognized properties during deserialization.. details
  • I've found documentation to be sparse or hard to understand with the newer features.. details
  • I've found documentation to be sparse or hard to understand with the newer features.. details
  • I'm using Jackson 2.1I'm expecting this code to fail on the unknown property "**_naome_**" but it doesn't it just gets ignored.If I remove the CODETERM2 and adapt the Json to having an embedded object, the above code fails as expected.. details
  • @JsonUnwrapped disables Jackson's fail_on_unknown properties.. details
  • I'm using Jackson 2.1I'm expecting this code to fail on the unknown property "**_naome_**" but it doesn't it just gets ignored.If I remove the CODETERM2 and adapt the Json to having an embedded object, the above code fails as expected.. details
  • Unfortunately, even with the CODETERM1 feature enabled you still need extra logic to control the root name generated when serializing a Java collection (see URL_http://stackoverflow.com/questions/15936680/how-to-rename- root-key-in-json-serialization-with-jackson/15937274#15937274 [this-answer] for details why).. details
  • If thats not desirable then use a map or holder class instead.. details
  • If thats not desirable then use a map or holder class instead.. details
  • I am running into a problem where I am trying to include a List as the root node, but I can't seem to be able to get this.. details
  • I tried @JsonIgnore on the setter and @JsonProperty on the getter just to explicitly tell Jackson that we intend to track this property, that seems to crash the application when money property is sent to the server and Jackson tries to deserialize it throwing up MalformedJsonException : cannot construct object of type Money.. details
  • And URL_http://jackson.codehaus.org/1.4.0/javadoc/org/codehaus/jackson/annotat e/JsonIgnoreProperties.html [@JsonIgnoreProperties] for properties Annotation that can be used to either suppress serialization of properties (during serialization), or ignore processing of JSON properties read (during deserialization).. details
  • And URL_http://jackson.codehaus.org/1.4.0/javadoc/org/codehaus/jackson/annotat e/JsonIgnoreProperties.html [@JsonIgnoreProperties] for properties Annotation that can be used to either suppress serialization of properties (during serialization), or ignore processing of JSON properties read (during deserialization).. details
  • As noted in the question, I'm writing a compatible implementation of somebody else's API, so I can't change the schema, and adding fields isn't an option unfortunately.. details
  • As noted in the question, I'm writing a compatible implementation of somebody else's API, so I can't change the schema, and adding fields isn't an option unfortunately.. details
  • The problem is that this second approach is not working... any idea why???. details
  • The problem is that this second approach is not working... any idea why???. details
  • I have tried all suggested solutions I could find but failed to achieve my goal.. details
  • I can't create such a program for you, though, so this is just a rough idea.. details
  • Dosn't matter if i use the first or the second, i get this exception: CODESNIPPET_JAVA3 .. details
  • I have no idea what is wrong or how to fix it.. details
  • It seems that for Jackson 1.9.12 there is no such possibility by default, because of: CODESNIPPET_JAVA1 .. details
  • This problem has been evoked here : URL_http://stackoverflow.com/questions/10860142/appengine-java-jersey-jackson- jaxbannotationintrospector-noclassdeffounderror [Appengine-java---Jersey /Jackson-JaxbAnnotationIntrospector-NoClassDefFoundError] I tried to apply the suggested solution and add the jackson-xc library to my project.But I'm still having the exception.. details
  • This problem has been evoked here : URL_http://stackoverflow.com/questions/10860142/appengine-java-jersey-jackson- jaxbannotationintrospector-noclassdeffounderror [Appengine-java---Jersey /Jackson-JaxbAnnotationIntrospector-NoClassDefFoundError] I tried to apply the suggested solution and add the jackson-xc library to my project.But I'm still having the exception.. details
  • Using the two different libraries (gson - first private method and jackson - second private method) is not ideal but at least we are passing all of our unit/integration tests.. details
  • Intead of return a full arraylist (that may be unnecessary), I want to return a URL for that Array, and the Product List must be retrive sending a GET to this link.. details
  • I know that is possible, but I really forgot the Annotation (and also the lib) to do this.I've look the URL_http://jackson.codehaus.org/ [jackson-docs] , URL_http://jersey.java.net/ [jersey-docs] and tiring searchs on Google, unsuccessfully.. details
  • Intead of return a full arraylist (that may be unnecessary), I want to return a URL for that Array, and the Product List must be retrive sending a GET to this link.. details
  • I know that is possible, but I really forgot the Annotation (and also the lib) to do this.I've look the URL_http://jackson.codehaus.org/ [jackson-docs] , URL_http://jersey.java.net/ [jersey-docs] and tiring searchs on Google, unsuccessfully.. details
  • @PLB unfortunately not.. details
  • Apparently this is a known Jackson bug/workaround: URL_http://jira.codehaus.org/browse/JACKSON-765 [ URL_http://jira.codehaus.org/browse/JACKSON-765 ] .. details
  • Is this expected behavior or a bug?. details
  • Calling writeNumber(String) on "NaN" with QUOTE_NON_NUMERIC_NUMBERS enabled fails to return a quoted string.. details
  • Jackson: quoting non-numeric numbers inconsistency.. details
  • I've found an inconsistency in the writeNumber() method in the Jackson JSON processor library.. details
  • Currently, I get an error CODETERM1 complaining about this field.. details
  • This is invalid JSON.. details
  • This is invalid JSON.. details
  • When I execute the rest call and let jackson parse this code I get an CODESNIPPET_JAVA3 .. details
  • I can't seem to find someone with a similar problem.. details
  • I can't seem to find someone with a similar problem.. details
  • This will solve my problem for sure :).. details
  • This will solve my problem for sure :).. details
  • and are there any other disadvantages that i need to know about?. details
  • What are the disadvantages of doing this to my application.. details
  • But this is a bit more convoluted IMO.. details
  • Jackson fails to serialize a null Double.. details
  • I am trying to serialize an object into an array and Jackson fails to do so with NPE.. details
  • I am trying to serialize an object into an array and Jackson fails to do so with NPE.. details
  • But in case if you get arbitrary JSON objects and you would like process them in the way you described, I would suggest combine URL_http://jackson.codehaus.org/ [Jackson-JSON-processor] along with Apache's URL_http://commons.apache.org/proper/commons-beanutils/ [Commons-Beanutils] .. details
  • But in case if you get arbitrary JSON objects and you would like process them in the way you described, I would suggest combine URL_http://jackson.codehaus.org/ [Jackson-JSON-processor] along with Apache's URL_http://commons.apache.org/proper/commons-beanutils/ [Commons-Beanutils] .. details
  • exception thrown but the collection object mentioned in the log has been already marked as CODETERM3 , even the whole class is marked as CODETERM4 .. details
  • exception thrown but the collection object mentioned in the log has been already marked as CODETERM3 , even the whole class is marked as CODETERM4 .. details
  • What a trouble!.. details
  • @ShankhoneerChakrovarty yes, it must be careful when I want to serialize a complicated object because possibly it contains a map structure with objects as the key!. details
  • I did it in URL_http://www.mkyong.com/java/how-to- convert-java-object-to-from-json-jackson/ [Jackson] Also, converting objects should be trivial.. details
  • So, why Jackson failed to parse this?. details
  • You may try the URL_http://wiki.fasterxml.com/JacksonStreamingApi [streaming- approach-employed-by-Jackson] : it seems to URL_http://wiki.fasterxml.com/JacksonInFiveMinutes#Streaming_API_Example [allow-incremental-writing] without the memory overhead suffered by the stock Android JSON library that needs to serialize the whole JSON object in CODETERM1 form before writing it on the connection stream.. details
  • If anyone is having the same problem i figured out a solution i believe.. details
  • If anyone is having the same problem i figured out a solution i believe.. details
  • Since your setter method is named CODETERM1 Jackson assumes the variable is named mDReqID because of the Java naming conventions (variables should start with lower case letters).. details
  • Above is my json, below is my exception... CODESNIPPET_JAVA2 .. details
  • I'm not clear how jackson deals with capitalization in mapping fields.. details
  • Above is my json, below is my exception... CODESNIPPET_JAVA2 .. details
  • Above is my exception, below is my class... CODESNIPPET_JAVA3 .. details
  • Above is my exception, below is my class... CODESNIPPET_JAVA3 .. details
  • I've already the logic that can deserialize a given LIKE*/HATE* property into a Liking object but I fail to understand to aggregate and add them to a Person liking attribute.. details
  • I've already the logic that can deserialize a given LIKE*/HATE* property into a Liking object but I fail to understand to aggregate and add them to a Person liking attribute.. details
  • Is it possible to write a JsonDeserializer that will aggregate and transform LIKE* and HATE* fields into a collection of Liking, set as a property of Person?. details
  • The problem is in this line of code in at CODESNIPPET_JAVA5 .. details
  • The problem is in this line of code in at CODESNIPPET_JAVA5 .. details
  • Not quite sore what should I do to acheieve my goal.. details
  • I am trying to parse the JSON with Jackson libraries, but I get the following error while testing: CODESNIPPET_JAVA2 .. details
  • Does anyone know what the problem might be?. details
  • Error using Jackson and Json.. details
  • Error using Jackson and Json.. details
  • However, if that were to change I'd worry about which one Jackson would use; if it picked the field, you might not get the behavior you're expecting.. details
  • I'm afraid you have to write your own URL_http://wiki.fasterxml.com/JacksonHowToCustomDeserializers [deserializer] .. details
  • I'm afraid you have to write your own URL_http://wiki.fasterxml.com/JacksonHowToCustomDeserializers [deserializer] .. details
  • I'm now stuck on the exception: JsonMappingException: No suitable constructor found for type [simple type, class Circle]: can not instantiate from JSON object (need to add/enable type information?). details
  • @dbf Also [that method]( URL_http://grepcode.com/file/repo1.maven.org/maven2/org.codehaus.jackson /jackson-mapper-lgpl/1.9.7/org/codehaus/jackson/map/SerializationConfig.java#S erializationConfig) in the accepted answer seems to be deprecated now.. details
  • Instead of keeping all images in memory, just read and write them incrementally.An example of Jackson Streaming API can be found URL_http://www.cowtowncoder.com/blog/archives/2009/01/entry_132.html [here] ("Reading and Writing Event Streams").. details
  • Instead of keeping all images in memory, just read and write them incrementally.An example of Jackson Streaming API can be found URL_http://www.cowtowncoder.com/blog/archives/2009/01/entry_132.html [here] ("Reading and Writing Event Streams").. details
  • Instead of keeping all images in memory, just read and write them incrementally.An example of Jackson Streaming API can be found URL_http://www.cowtowncoder.com/blog/archives/2009/01/entry_132.html [here] ("Reading and Writing Event Streams").. details
  • gen.writeEndArray(); // to get array of objects gen.close(); and that should about do the trick.. details
  • Always return out of memory.. details
  • what am I doing wrong?. details
  • Using just the exclusion for jackson-mapper-asl didn't work but using an exclusion for core and mapper did: CODESNIPPET_JAVA1 .. details
  • For this complex scenario you could take a look at CODETERM3 classes.. details
  • When trying to parse the JSON with jQuery on the page, I get a JavaScript error CODETERM1 .. details
  • JSON In Jackson CODETERM2 In Gson[{"person":{"firstName":"James","lastName":"O**\u0027**tool"}}] JavaScript**; // This is where the JavaScript fails with the Jackson serialized object $.parseJSON('${requestScope.person}'); I have looked for a solution, but am unable to find one.Does anyone know if it is possible to configure Jackson to handle single quotes the same way Gson does?. details
  • I am a little confused about how to get into the latLng object to pull out the lat,lng values.. details
  • I have a complex JSON that I am trying to parse using Jackson JSON.. details
  • Deserializing using this inclusion gives me "_Exception in thread "main" org.codehaus.jackson.JsonGenerationException: Can not write a field name, expecting a value_" error message.. details
  • Deserializing using this inclusion gives me "_Exception in thread "main" org.codehaus.jackson.JsonGenerationException: Can not write a field name, expecting a value_" error message.. details
  • Edit To be a little clearer, I can do the following with Mixins for example: CODESNIPPET_JAVA2 .. details
  • Unfortunately, the official site indicates that URL_http://wiki.fasterxml.com/CustomSerializerFactory [it-is-not-the-recommended-approach-any-more] and that modules should be used instead.. details
  • My action build the following model and after the execution, i get stackoverflow exception.. details
  • Any idea what's my problem ?. details
  • this is the log file (part of it): at org.codehaus.jackson.map.ser.BeanPropertyWriter.serializeAsField(BeanProp ertyWriter.java:446) at org.codehaus.jackson.map.ser.std.BeanSerializerBase.se rializeFields(BeanSerializerBase.java:150) at org.codehaus.jackson.map.ser.BeanSerializer.serialize(BeanSerializer.java:112) at org.codehaus.jackson.map.ser.std.StdContainerSerializers$IndexedListSeriali zer.serializeContents(StdContainerSerializers.java:122) at org.codehaus.jackso n.map.ser.std.StdContainerSerializers$IndexedListSerializer.serializeContents( StdContainerSerializers.java:71) at org.codehaus.jackson.map.ser.std.AsArraySe rializerBase.serialize(AsArraySerializerBase.java:86) at org.codehaus.jackson.. details
  • this is the log file (part of it): at org.codehaus.jackson.map.ser.BeanPropertyWriter.serializeAsField(BeanProp ertyWriter.java:446) at org.codehaus.jackson.map.ser.std.BeanSerializerBase.se rializeFields(BeanSerializerBase.java:150) at org.codehaus.jackson.map.ser.BeanSerializer.serialize(BeanSerializer.java:112) at org.codehaus.jackson.map.ser.std.StdContainerSerializers$IndexedListSeriali zer.serializeContents(StdContainerSerializers.java:122) at org.codehaus.jackso n.map.ser.std.StdContainerSerializers$IndexedListSerializer.serializeContents( StdContainerSerializers.java:71) at org.codehaus.jackson.map.ser.std.AsArraySe rializerBase.serialize(AsArraySerializerBase.java:86) at org.codehaus.jackson.. details
  • It looks like the problem is that you are getting incompatible versions of CODETERM1 and CODETERM2 - jackson-core 2.0.5 is being pulled in, but I believe at least 2.1.0 is required.. details
  • It looks like the problem is that you are getting incompatible versions of CODETERM1 and CODETERM2 - jackson-core 2.0.5 is being pulled in, but I believe at least 2.1.0 is required.. details
  • The first line of the exception tells you that it can't find the method CODETERM3 , looking at the API docs for URL_http://fasterxml.github.com /jackson-core/javadoc/2.0.5/com/fasterxml/jackson/core/JsonParser.html [2.0.5] , that method indeed does not exist.. details
  • It looks like the problem is that you are getting incompatible versions of CODETERM1 and CODETERM2 - jackson-core 2.0.5 is being pulled in, but I believe at least 2.1.0 is required.. details
  • It looks like the problem is that you are getting incompatible versions of CODETERM1 and CODETERM2 - jackson-core 2.0.5 is being pulled in, but I believe at least 2.1.0 is required.. details
  • The first line of the exception tells you that it can't find the method CODETERM3 , looking at the API docs for URL_http://fasterxml.github.com /jackson-core/javadoc/2.0.5/com/fasterxml/jackson/core/JsonParser.html [2.0.5] , that method indeed does not exist.. details
  • Jackson Json and no such method errors.. details
  • Throws Exception CODESNIPPET_JAVA3 .. details
  • i am getting the following error.. details
  • I am currently reading it with this code (simplified for illustration -- removed areas handling commas into the stringbuilder, etc): CODESNIPPET_JAVA2 .. details
  • I am converting from the tree model to the streaming api within Jackson, to prevent out of heap memory issues on Android.. details
  • Converting JSON to XML and vice versa using Jackson API and JAXB Annotation.. details
  • But that is generating me an error: CODESNIPPET_JAVA3 .. details
  • Exclude empty Arrays from Jackson ObjectMapper.. details
  • But that is generating me an error: CODESNIPPET_JAVA3 .. details
  • Unfortunately I do not have access to these methods given the plugin architecture.. details
  • I found some strange behavior of the Jackson JSON Processor library and i am curious whether this is intentional or a bug.. details
  • I found some strange behavior of the Jackson JSON Processor library and i am curious whether this is intentional or a bug.. details
  • This makes it much easier to understand how the mapping is different - going from JSON -> Java is harder to debug.. details
  • I believe you also need to create default (aka no-arg) constructors for your POJOs for Jackson to work.. details
  • It seems that when Spring used Jackson to serialize one of my hibernate entities into it's JSON version, hibernate was trying to lazy load one of that entity's properties, but since the entity was outside of its transaction at that point (being "in" the controller), it caused an exception, which just got swallowed up.. details
  • I receive the following error from my Jmeter test: Error 500 Server Error I believe this means that the Jackson json parser had an issue setting the json.. details
  • It seems that when Spring used Jackson to serialize one of my hibernate entities into it's JSON version, hibernate was trying to lazy load one of that entity's properties, but since the entity was outside of its transaction at that point (being "in" the controller), it caused an exception, which just got swallowed up.. details
  • The idea here is that the implementation above is only concerned with the topology of the tree, but does not know anything about the elements that will be stored in the tree by an instantiation.. details
  • Read the error message carefully: org.codehaus.jackson.map.JsonMappingException: Can not deserialize instance of mypackage.F out of START_ARRAY token** at [Source: java.io.StringReader@11563ff; line: 1, column: 227] (through reference chain: mypackage.Response[**"rows"**]->mypackage.FWrapper["f"]) Now I see you modified the JSON - added it.. details
  • And here's the error I'm getting: CODETERM3 : Can not deserialize instance of mypackage.F out of START_ARRAY token at [Source: java.io.StringReader@11563ff; line: 1, column: 227] (through reference chain: mypackage.Response["rows"]->mypackage.FWrapper["f"]) I checked several old questions with similar error, but couldn't resolve mine yet.. details
  • And here's the error I'm getting: CODETERM3 : Can not deserialize instance of mypackage.F out of START_ARRAY token at [Source: java.io.StringReader@11563ff; line: 1, column: 227] (through reference chain: mypackage.Response["rows"]->mypackage.FWrapper["f"]) I checked several old questions with similar error, but couldn't resolve mine yet.. details
  • I think this is an issue with the way Jackson parser is designed to handle boolean values.I changed the JSON from "myVar" : false to "isMyVar" : false and it worked ok to create back the Java POJO from the JSON.. details
  • (I know the boolean variable naming is wrong here, but the JAR is third party and say you cannot change it!). details
  • I think this is an issue with the way Jackson parser is designed to handle boolean values.I changed the JSON from "myVar" : false to "isMyVar" : false and it worked ok to create back the Java POJO from the JSON.. details
  • Actually I don't think his problem is really that: if you look carefully at JSON sample he is showing, the multi-object case, there is the bigger issue of content being a String, not JSON.. details
  • Actually I don't think his problem is really that: if you look carefully at JSON sample he is showing, the multi-object case, there is the bigger issue of content being a String, not JSON.. details
  • It fails when trying to parse "not" condition saying that "can't instantiate abstract class need more information about type".. details
  • One solution is to disable lazy loading in your ORM.. details
  • I've had the same problems with hibernate and this URL_https://github.com/FasterXML/jackson-module-hibernate [little-module] did just that: my Jackson now serializes Hibernate specific objects and datatypes.. details
  • I've had the same problems with hibernate and this URL_https://github.com/FasterXML/jackson-module-hibernate [little-module] did just that: my Jackson now serializes Hibernate specific objects and datatypes.. details
  • Often, when you pass the objects to jackson, the ORM session has already been closed and the lazy loading attempt fails.. details
  • I'm convinced that the fact that you're trying to serialize an ORM proxy object is the root cause of your problem.. details
  • I am getting this exception while returning Java class at JSON object using JacksonMapper.. details
  • org.codehaus.jackson.map.JsonMappingException: No serializer found for class $Proxy57 and no properties discovered to create BeanSerializer (to avoid exception, disable SerializationConfig.Feature.FAIL_ON_EMPTY_BEANS) ) (through reference chain: java.util.HashMap["exception"]->org.springframework.core.conv ert.ConversionFailedException["targetType"]->org.springframework.core.convert.. details
  • I am getting this exception while returning Java class at JSON object using JacksonMapper.. details
  • org.codehaus.jackson.map.JsonMappingException: No serializer found for class $Proxy57 and no properties discovered to create BeanSerializer (to avoid exception, disable SerializationConfig.Feature.FAIL_ON_EMPTY_BEANS) ) (through reference chain: java.util.HashMap["exception"]->org.springframework.core.conv ert.ConversionFailedException["targetType"]->org.springframework.core.convert.. details
  • Finally, if your input consists of a sequence of items, there are even better ways to slice it up (which can be done regardless of whether individual items would be CODETERM3 s or POJOs!).. details
  • Out of memory error while parsing a large JSON using Jackson library on Android.. details
  • Out of memory error while parsing a large JSON using Jackson library on Android.. details
  • I am getting the outOfMemoryError on this piece of code: CODESNIPPET_JAVA1 .. details
  • and this is the exception that I am getting: CODESNIPPET_JAVA2 .. details
  • Out of memory error while parsing a large JSON using Jackson library on Android.. details
  • There's an open issue to add that feature, but it's old and hasn't been addressed (as far as I can tell): URL_http://jira.codehaus.org/browse/JACKSON-623 [ URL_http://jira.codehaus.org/browse/JACKSON-623 ] So my question is: Is there a way to setup jackson to serialize all the objects fields?. details
  • I know I could create an annotation, but I really want to avoid it.. details
  • We use JSON serialization with Jackson to expose internal state of the system for debugging properties.. details
  • By default jackson does not serialize transient fields - but I wish to serialize them as well.How can I serialize these fields?. details
  • I don't recommend Jackson because it relies too much on auto-magically converting beans to JSON.. details
  • EDIT2 After all you have added as details I would suppose the problem is with the server implementation of the services - the umlauts are not to be unicode escaped in the json - UTF 8 is native encoding for it.. details
  • I'm having a problem regarding a json string, i acquire with the Apache http client, containing german umlauts.. details
  • How can i get a utf-8 encoded json response from Apache http client?Or is the server output the problem?. details
  • JSON Jackson + HTTPClient with german umlauts.. details
  • Overriding the type on Human is one avenue I explored, however (if I'm remembering correctly) I ran into the problem that I think you describe in your second paragraph...when I tried to then include a Human in a List it complained.. details
  • Overriding the type on Human is one avenue I explored, however (if I'm remembering correctly) I ran into the problem that I think you describe in your second paragraph...when I tried to then include a Human in a List it complained.. details
  • This does not work and it throws an exception.. details
  • This does not work and it throws an exception.. details
  • I get the standard exception about abstract types.. details
  • I think that the the problem is that inside the 'tweet' object, I have another 'user' object and when the parser encounters the CODETERM3 of the user object, it thinks that it is the CODETERM4 of the whole tweet object.. details
  • I think that the the problem is that inside the 'tweet' object, I have another 'user' object and when the parser encounters the CODETERM3 of the user object, it thinks that it is the CODETERM4 of the whole tweet object.. details
  • However, I get the error: CODESNIPPET_JAVA4 .. details
  • results in the following exception: CODESNIPPET_JAVA5 .. details
  • Writing a custom de-serializer, off course, solves the problem, but is there away to de-serialize without a custom de-serializer?. details
  • Ok, I'm a little embarrassed - adding the dependency does fix the problem and I don't know why I didn't test it before!. details
  • Ok, I'm a little embarrassed - adding the dependency does fix the problem and I don't know why I didn't test it before!. details
  • and then the only trick is to construct type object to let Jackson know what CODETERM1 there is.If it is statically available, you just do: CODESNIPPET_JAVA2 .. details
  • JSON: [{"Description":"Cliente Jos","EndDate":"/Date(1353319200000+0000)/","ID":0,"S tartDate":"/Date(1353315600000+0000)/"},{"Description":"Cliente Carlos","EndDa te":"/Date(1353348000000+0000)/","ID":0,"StartDate":"/Date(1353344400000+0000) /"},{"Description":"Cliente Pedro","EndDate":"/Date(1353513600000+0000)/","ID" :0,"StartDate":"/Date(1353510000000+0000)/"},{"Description":"Cliente Marco","E ndDate":"/Date(1353664800000+0000)/","ID":0,"StartDate":"/Date(1353661200000+0 000)/"},{"Description":"Cliente Jos","EndDate":"/Date(1353319200000+0000)/","I D":0,"StartDate":"/Date(1353315600000+0000)/"},{"Description":"Cliente Carlos" ,"EndDate":"/Date(1353348000000+0000)/","ID":0,"StartDate":"/Date(135334440000 0+0000)/"},{"Description":"Cliente Pedro","EndDate":"/Date(1353513600000+0000) /","ID":0,"StartDate":"/Date(1353510000000+0000)/"},{"Description":"Cliente Ma rco","EndDate":"/Date(1353664800000+0000)/","ID":0,"StartDate":"/Date(13536612 00000+0000)/"}] Full log 01-03 17:39:24.700: E/dalvikvm(18494): Unable to resolve Lorg/joda/time/base/AbstractInstant; annotation class 155701-03 17:39:28.505: W/dalvikvm(18494): threadid=11: thread exiting with uncaught exception (group=0x40c4d1f8)01-03 17:39:28.650: E/AndroidRuntime(18494): FATAL EXCEPTION: AsyncTask 101-03 17:39:28.650: E/AndroidRuntime(18494): java.lang.RuntimeException: An error occured while executing doInBackground()01-03 17:39:28.650: E/AndroidRuntime(18494): at android.os.AsyncTask$3.done(AsyncTask.java:278)01-03 17:39:28.650: E/AndroidRuntime(18494): at java.util.concurrent.FutureTask$Sync.innerSetExcep tion(FutureTask.java:273)01-03 17:39:28.650: E/AndroidRuntime(18494): at java.util.concurrent.FutureTask.setException(FutureTask.java:124)01-03 17:39:28.650: E/AndroidRuntime(18494): at java.util.concurrent.FutureTask$Sync.innerRun(FutureTask.java:307)01-03 17:39:28.650: E/AndroidRuntime(18494): at java.util.concurrent.FutureTask.run(FutureTask.java:137)01-03 17:39:28.650: E/AndroidRuntime(18494): at java.util.concurrent.ThreadPoolExecutor.runWorker( ThreadPoolExecutor.java:1076)01-03 17:39:28.650: E/AndroidRuntime(18494): at j ava.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:569) 01-03 17:39:28.650: E/AndroidRuntime(18494): at java.lang.Thread.run(Thread.java:856)01-03 17:39:28.650: E/AndroidRuntime(18494): Caused by: java.lang.NoClassDefFoundError: org/joda/convert/ToString01-03 17:39:28.650: E/AndroidRuntime(18494): at java.lang.reflect.Method.getDeclaredAnnotations(Native Method)01-03 17:39:28.650: E/AndroidRuntime(18494): at java.lang.reflect.Method.getDeclaredAnnotations(Method.java:267)01-03 17:39:28.650: E/AndroidRuntime(18494): at com.fasterxml.jackson.databind.intro spect.AnnotatedClass._addMixUnders(AnnotatedClass.java:999)01-03 17:39:28.650: E/AndroidRuntime(18494): at com.fasterxml.jackson.databind.introspect.Annotate dClass._addMemberMethods(AnnotatedClass.java:610)01-03 17:39:28.650: E/AndroidRuntime(18494): at com.fasterxml.jackson.databind.introspect.Annotate dClass.resolveMemberMethods(AnnotatedClass.java:421)01-03 17:39:28.650: E/AndroidRuntime(18494): at com.fasterxml.jackson.databind.introspect.Annotate dClass.memberMethods(AnnotatedClass.java:243)01-03 17:39:28.650: E/AndroidRuntime(18494): at com.fasterxml.jackson.databind.introspect.POJOProp ertiesCollector._addMethods(POJOPropertiesCollector.java:442)01-03 17:39:28.650: E/AndroidRuntime(18494): at com.fasterxml.jackson.databind.intro spect.POJOPropertiesCollector.collect(POJOPropertiesCollector.java:232)01-03 17:39:28.650: E/AndroidRuntime(18494): at com.fasterxml.jackson.databind.intro spect.BasicClassIntrospector.collectProperties(BasicClassIntrospector.java:142 )01-03 17:39:28.650: E/AndroidRuntime(18494): at com.fasterxml.jackson.databin d.introspect.BasicClassIntrospector.forDeserialization(BasicClassIntrospector.. details
  • JSON: [{"Description":"Cliente Jos","EndDate":"/Date(1353319200000+0000)/","ID":0,"S tartDate":"/Date(1353315600000+0000)/"},{"Description":"Cliente Carlos","EndDa te":"/Date(1353348000000+0000)/","ID":0,"StartDate":"/Date(1353344400000+0000) /"},{"Description":"Cliente Pedro","EndDate":"/Date(1353513600000+0000)/","ID" :0,"StartDate":"/Date(1353510000000+0000)/"},{"Description":"Cliente Marco","E ndDate":"/Date(1353664800000+0000)/","ID":0,"StartDate":"/Date(1353661200000+0 000)/"},{"Description":"Cliente Jos","EndDate":"/Date(1353319200000+0000)/","I D":0,"StartDate":"/Date(1353315600000+0000)/"},{"Description":"Cliente Carlos" ,"EndDate":"/Date(1353348000000+0000)/","ID":0,"StartDate":"/Date(135334440000 0+0000)/"},{"Description":"Cliente Pedro","EndDate":"/Date(1353513600000+0000) /","ID":0,"StartDate":"/Date(1353510000000+0000)/"},{"Description":"Cliente Ma rco","EndDate":"/Date(1353664800000+0000)/","ID":0,"StartDate":"/Date(13536612 00000+0000)/"}] Full log 01-03 17:39:24.700: E/dalvikvm(18494): Unable to resolve Lorg/joda/time/base/AbstractInstant; annotation class 155701-03 17:39:28.505: W/dalvikvm(18494): threadid=11: thread exiting with uncaught exception (group=0x40c4d1f8)01-03 17:39:28.650: E/AndroidRuntime(18494): FATAL EXCEPTION: AsyncTask 101-03 17:39:28.650: E/AndroidRuntime(18494): java.lang.RuntimeException: An error occured while executing doInBackground()01-03 17:39:28.650: E/AndroidRuntime(18494): at android.os.AsyncTask$3.done(AsyncTask.java:278)01-03 17:39:28.650: E/AndroidRuntime(18494): at java.util.concurrent.FutureTask$Sync.innerSetExcep tion(FutureTask.java:273)01-03 17:39:28.650: E/AndroidRuntime(18494): at java.util.concurrent.FutureTask.setException(FutureTask.java:124)01-03 17:39:28.650: E/AndroidRuntime(18494): at java.util.concurrent.FutureTask$Sync.innerRun(FutureTask.java:307)01-03 17:39:28.650: E/AndroidRuntime(18494): at java.util.concurrent.FutureTask.run(FutureTask.java:137)01-03 17:39:28.650: E/AndroidRuntime(18494): at java.util.concurrent.ThreadPoolExecutor.runWorker( ThreadPoolExecutor.java:1076)01-03 17:39:28.650: E/AndroidRuntime(18494): at j ava.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:569) 01-03 17:39:28.650: E/AndroidRuntime(18494): at java.lang.Thread.run(Thread.java:856)01-03 17:39:28.650: E/AndroidRuntime(18494): Caused by: java.lang.NoClassDefFoundError: org/joda/convert/ToString01-03 17:39:28.650: E/AndroidRuntime(18494): at java.lang.reflect.Method.getDeclaredAnnotations(Native Method)01-03 17:39:28.650: E/AndroidRuntime(18494): at java.lang.reflect.Method.getDeclaredAnnotations(Method.java:267)01-03 17:39:28.650: E/AndroidRuntime(18494): at com.fasterxml.jackson.databind.intro spect.AnnotatedClass._addMixUnders(AnnotatedClass.java:999)01-03 17:39:28.650: E/AndroidRuntime(18494): at com.fasterxml.jackson.databind.introspect.Annotate dClass._addMemberMethods(AnnotatedClass.java:610)01-03 17:39:28.650: E/AndroidRuntime(18494): at com.fasterxml.jackson.databind.introspect.Annotate dClass.resolveMemberMethods(AnnotatedClass.java:421)01-03 17:39:28.650: E/AndroidRuntime(18494): at com.fasterxml.jackson.databind.introspect.Annotate dClass.memberMethods(AnnotatedClass.java:243)01-03 17:39:28.650: E/AndroidRuntime(18494): at com.fasterxml.jackson.databind.introspect.POJOProp ertiesCollector._addMethods(POJOPropertiesCollector.java:442)01-03 17:39:28.650: E/AndroidRuntime(18494): at com.fasterxml.jackson.databind.intro spect.POJOPropertiesCollector.collect(POJOPropertiesCollector.java:232)01-03 17:39:28.650: E/AndroidRuntime(18494): at com.fasterxml.jackson.databind.intro spect.BasicClassIntrospector.collectProperties(BasicClassIntrospector.java:142 )01-03 17:39:28.650: E/AndroidRuntime(18494): at com.fasterxml.jackson.databin d.introspect.BasicClassIntrospector.forDeserialization(BasicClassIntrospector.. details
  • jackson.databind.DeserializationContext.findContextualValueDeserializer(Deseri alizationContext.java:329)01-03 17:39:28.650: E/AndroidRuntime(18494): at com.. details
  • java:81)01-03 17:39:28.650: E/AndroidRuntime(18494): at com.fasterxml.jackson.. details
  • java:81)01-03 17:39:28.650: E/AndroidRuntime(18494): at com.fasterxml.jackson.. details
  • java:81)01-03 17:39:28.650: E/AndroidRuntime(18494): at com.fasterxml.jackson.. details
  • JSON: [{"Description":"Cliente Jos","EndDate":"/Date(1353319200000+0000)/","ID":0,"S tartDate":"/Date(1353315600000+0000)/"},{"Description":"Cliente Carlos","EndDa te":"/Date(1353348000000+0000)/","ID":0,"StartDate":"/Date(1353344400000+0000) /"},{"Description":"Cliente Pedro","EndDate":"/Date(1353513600000+0000)/","ID" :0,"StartDate":"/Date(1353510000000+0000)/"},{"Description":"Cliente Marco","E ndDate":"/Date(1353664800000+0000)/","ID":0,"StartDate":"/Date(1353661200000+0 000)/"},{"Description":"Cliente Jos","EndDate":"/Date(1353319200000+0000)/","I D":0,"StartDate":"/Date(1353315600000+0000)/"},{"Description":"Cliente Carlos" ,"EndDate":"/Date(1353348000000+0000)/","ID":0,"StartDate":"/Date(135334440000 0+0000)/"},{"Description":"Cliente Pedro","EndDate":"/Date(1353513600000+0000) /","ID":0,"StartDate":"/Date(1353510000000+0000)/"},{"Description":"Cliente Ma rco","EndDate":"/Date(1353664800000+0000)/","ID":0,"StartDate":"/Date(13536612 00000+0000)/"}] Full log 01-03 17:39:24.700: E/dalvikvm(18494): Unable to resolve Lorg/joda/time/base/AbstractInstant; annotation class 155701-03 17:39:28.505: W/dalvikvm(18494): threadid=11: thread exiting with uncaught exception (group=0x40c4d1f8)01-03 17:39:28.650: E/AndroidRuntime(18494): FATAL EXCEPTION: AsyncTask 101-03 17:39:28.650: E/AndroidRuntime(18494): java.lang.RuntimeException: An error occured while executing doInBackground()01-03 17:39:28.650: E/AndroidRuntime(18494): at android.os.AsyncTask$3.done(AsyncTask.java:278)01-03 17:39:28.650: E/AndroidRuntime(18494): at java.util.concurrent.FutureTask$Sync.innerSetExcep tion(FutureTask.java:273)01-03 17:39:28.650: E/AndroidRuntime(18494): at java.util.concurrent.FutureTask.setException(FutureTask.java:124)01-03 17:39:28.650: E/AndroidRuntime(18494): at java.util.concurrent.FutureTask$Sync.innerRun(FutureTask.java:307)01-03 17:39:28.650: E/AndroidRuntime(18494): at java.util.concurrent.FutureTask.run(FutureTask.java:137)01-03 17:39:28.650: E/AndroidRuntime(18494): at java.util.concurrent.ThreadPoolExecutor.runWorker( ThreadPoolExecutor.java:1076)01-03 17:39:28.650: E/AndroidRuntime(18494): at j ava.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:569) 01-03 17:39:28.650: E/AndroidRuntime(18494): at java.lang.Thread.run(Thread.java:856)01-03 17:39:28.650: E/AndroidRuntime(18494): Caused by: java.lang.NoClassDefFoundError: org/joda/convert/ToString01-03 17:39:28.650: E/AndroidRuntime(18494): at java.lang.reflect.Method.getDeclaredAnnotations(Native Method)01-03 17:39:28.650: E/AndroidRuntime(18494): at java.lang.reflect.Method.getDeclaredAnnotations(Method.java:267)01-03 17:39:28.650: E/AndroidRuntime(18494): at com.fasterxml.jackson.databind.intro spect.AnnotatedClass._addMixUnders(AnnotatedClass.java:999)01-03 17:39:28.650: E/AndroidRuntime(18494): at com.fasterxml.jackson.databind.introspect.Annotate dClass._addMemberMethods(AnnotatedClass.java:610)01-03 17:39:28.650: E/AndroidRuntime(18494): at com.fasterxml.jackson.databind.introspect.Annotate dClass.resolveMemberMethods(AnnotatedClass.java:421)01-03 17:39:28.650: E/AndroidRuntime(18494): at com.fasterxml.jackson.databind.introspect.Annotate dClass.memberMethods(AnnotatedClass.java:243)01-03 17:39:28.650: E/AndroidRuntime(18494): at com.fasterxml.jackson.databind.introspect.POJOProp ertiesCollector._addMethods(POJOPropertiesCollector.java:442)01-03 17:39:28.650: E/AndroidRuntime(18494): at com.fasterxml.jackson.databind.intro spect.POJOPropertiesCollector.collect(POJOPropertiesCollector.java:232)01-03 17:39:28.650: E/AndroidRuntime(18494): at com.fasterxml.jackson.databind.intro spect.BasicClassIntrospector.collectProperties(BasicClassIntrospector.java:142 )01-03 17:39:28.650: E/AndroidRuntime(18494): at com.fasterxml.jackson.databin d.introspect.BasicClassIntrospector.forDeserialization(BasicClassIntrospector.. details
  • Load this as a schema, validate your input against it: if it validates, you know you need to deserialize against your fruit class.. details
  • First, I tried URL_http://jackson.codehaus.org/ [Jackson] with limited success, but it wasn't as configurable as I wanted it to be.. details
  • First, I tried URL_http://jackson.codehaus.org/ [Jackson] with limited success, but it wasn't as configurable as I wanted it to be.. details
  • Can anyone spot where I'm going wrong?. details
  • Unfortunately this code throws an exception when the Jackson CODETERM2 method gets executed: CODESNIPPET_JAVA4 .. details
  • Either way, writing the Jackson mapper is my main problem.. details
  • Either way, writing the Jackson mapper is my main problem.. details
  • Disable Jackson mapper for a particular annotation.. details
  • With Jackson, it's easy to disable all annotations for a given CODETERM1 .Is there a way to only disable one given annotation?. details
  • URL_http://stackoverflow.com/questions/14038084/json-nest-class-data-binding [JSON-nest-class-data-binding] as the answer did, When I Serialization and Deserialization the Container I got this exception: CODESNIPPET_JAVA1 .. details
  • Serialization and Deserialization with Jackson Exception.. details
  • Serialization and Deserialization with Jackson Exception.. details
  • Bearing in mind, the 2002, 2003 etc ids are not known until runtime and can evolve over time, and could also be quite a long list of possible values.. details
  • The problem I run into, is that during deserialization, there are two methods that match: one that accepts an Enum and another that accepts a String.. details
  • I have already gone down the path of CODETERM3 and Mixins, unfortunately this is not viable.. details
  • This problem seems related to Jackson's handling of generic objects.. details
  • You can now see what the error from Jackson was saying.. details
  • You can now see what the error from Jackson was saying.. details
  • But I thing this step is unnecessary, because only MappingJacksonHttpMessageConverter is used, am I right?. details
  • But I thing this step is unnecessary, because only MappingJacksonHttpMessageConverter is used, am I right?. details
  • Using a Utility Class, I decided to hard code the POJOs as follows: CODESNIPPET_JAVA3 .. details
  • But from the curl command on the command line (this response is more important): CODESNIPPET_JAVA7 .. details
  • Exception: CODESNIPPET_JAVA3 .. details
  • Jackson JSON parser invalid utf-8 start byte.. details
  • also fails on the ... in this JSON CODESNIPPET_JAVA2 .. details
  • But whatever you do, don't try converting JSON to XML, then using XML tools -- that's a path that generally brings you lots of trouble, above and beyond just being slow.. details
  • But whatever you do, don't try converting JSON to XML, then using XML tools -- that's a path that generally brings you lots of trouble, above and beyond just being slow.. details
  • You can annotate the lazy properties with CODETERM1 so that Jackson ignores it while serializing.. details
  • Are there any annotations that I can set on MyTargetClass to enforce required attributes?. details
  • (for now) serializing is not a problem.. details
  • TL;DR basically, my problem is that i have a list of wrapper objects CODESNIPPET_JAVA1 .. details
  • TL;DR basically, my problem is that i have a list of wrapper objects CODESNIPPET_JAVA1 .. details
  • long version i don't know enough jackson to solve the following problem.. details
  • (for now) serializing is not a problem.. details
  • but this failed, probably because all ResponseTypes are subclasses of AResponse and thus jackson gets confused.. details
  • Is customized JSONView to except exclusion/inclusion would be right solution if not something similar already available.. details
  • Using the same data with the following version Jackson 1.9.9 with the Jackson CSV Data Formatter 1.9.4 (jackson-dataformat-csv), i get the below error.. details
  • My guess is that its a bug within the CsvGenerator.. details
  • I have a weird error, which sometime happens sometime doesn't.. details
  • In reality I have more than one field that would replicate because JSON structure is a bit more complex, I've simplified it for sake of clarity.. details
  • but I'm getting the Exception: org.codehaus.jackson.map.JsonMappingException: Can not deserialize instance of Main$MyClass$ThirdField out of START_ARRAY token .. details
  • but I'm getting the Exception: org.codehaus.jackson.map.JsonMappingException: Can not deserialize instance of Main$MyClass$ThirdField out of START_ARRAY token .. details
  • I had tried that before but it wasn't working because I didn't have the jackson jar in the buildpath of my project (Based on the documentation I thought it was built into jersey's core library).. details
  • Parse complex JSON object with Jackson.. details
  • I need to parse relatively complex JSON with Jackson library.. details
  • You'll need to implement your custom Jackson Serializer ( URL_http://jackson.c odehaus.org/1.7.9/javadoc/org/codehaus/jackson/map/JsonSerializer.html [http:/ /jackson.codehaus.org/1.7.9/javadoc/org/codehaus/jackson/map/JsonSerializer.ht ml] ) Take a look at Spring Hateoas project.. details
  • You can try to replace jackson by URL_http://code.google.com/p/genson/ [Genson] on the server side, it should solve your problem.. details
  • If I pass a CODETERM10 object with a CODETERM11 property to the above method, the resulting JSON will have CODETERM12 values like the example above and should the last item of a list have the value null, deserialization will abort causing NullPointerExceptions in my backend.. details
  • If I pass a CODETERM10 object with a CODETERM11 property to the above method, the resulting JSON will have CODETERM12 values like the example above and should the last item of a list have the value null, deserialization will abort causing NullPointerExceptions in my backend.. details
  • Bad: If I send this JSON to my receiver (below), the mapped CODETERM2 object will be CODETERM3 , because the deserialization stops at CODETERM4 : CODESNIPPET_JAVA1 .. details
  • Jackson Deserialization aborts when sub-property has trailing null value.. details
  • This is overly complicated, Jackson handles lists via its writer methods just as well as it handles regular objects.. details
  • This is overly complicated, Jackson handles lists via its writer methods just as well as it handles regular objects.. details
  • even greedier: CODESNIPPET_JAVA5 .. details
  • I am serializing an object containing a CODETERM1 using the URL_https://github.com/codahale/jerkson [Jerkson-Json-library] (wrapper for URL_http://wiki.fasterxml.com/JacksonHome [Jackson] ): CODESNIPPET_JAVA1 .. details
  • I am serializing an object containing a CODETERM1 using the URL_https://github.com/codahale/jerkson [Jerkson-Json-library] (wrapper for URL_http://wiki.fasterxml.com/JacksonHome [Jackson] ): CODESNIPPET_JAVA1 .. details
  • Yes, I know it can be made to work, having lots of experience with Jackson; but devil is in details, i.e.. details
  • One important thing is that one MUST use same JsonParser, as otherwise first one will read and buffer block full of input; and this buffered content will be missing if separate parsers are constructed.. details
  • One important thing is that one MUST use same JsonParser, as otherwise first one will read and buffer block full of input; and this buffered content will be missing if separate parsers are constructed.. details
  • Well, couldn't find a way to express what I wanted using Jackson's provided annotations or types system, so I ended up doing what I was trying to avoid by writing a custom deserializer instead.. details
  • I checked them out briefly, Jackson's Javadoc is crap.. details
  • This is of course rather inefficient for long documents, of which we have many.. details
  • Currently we parse the document in full, then iterate through each value of each map and perform an CODETERM7 to check if it's valid or not, returning an error to the user when invalid.. details
  • Currently we parse the document in full, then iterate through each value of each map and perform an CODETERM7 to check if it's valid or not, returning an error to the user when invalid.. details
  • This is of course rather inefficient for long documents, of which we have many.. details
  • Currently we parse the document in full, then iterate through each value of each map and perform an CODETERM7 to check if it's valid or not, returning an error to the user when invalid.. details
  • Currently we parse the document in full, then iterate through each value of each map and perform an CODETERM7 to check if it's valid or not, returning an error to the user when invalid.. details
  • Without giving away confidential information, here is an example stack trace when ObjectMapper's deserialization fails: CODESNIPPET_JAVA1 .. details
  • The error is: CODESNIPPET_JAVA2 .. details
  • So I decided to actually try this Jackson thing out but, it seems like the parsing is a little bit more confusing here than with GSON.. details
  • Sorry -- Jackson 2.0 is just version of library; result is just regular JSON.. details
  • The problem here is that I made a lot of confusion using Jackson.. details
  • The problem here is that I made a lot of confusion using Jackson.. details
  • To solve my type mismatch problem discussed URL_http://stackoverflow.com/questions/12684808/jackson-parser-ignore- deserializing-for-type-mismatch/ [in-this-thread] I created custom CODETERM1 and added them to CODETERM2 .. details
  • With default deserializer i get 1-2 Garbage collection calls in CODETERM3 while with custom deserializer there are at least 7-8 GC calls, and hence the processing time is also increase significantly.. details
  • In extreme synthesis, I tried to schematize the problem as follows: 1.. details
  • CODETERM8 class maps objects with the only attributes I strictly need.. details
  • I failed in trying to make it easier for you to understand the problem.. details
  • I have a problem in resolving with Jackson CODETERM1 JSON array elements, ending up with an exception that I'll report later in this post.. details
  • In extreme synthesis, I tried to schematize the problem as follows: 1.. details
  • Now, when I try to deserialize the above JSON string into my objects I get an exception telling me that JSON can't be deserialized: CODESNIPPET_JAVA6 .. details
  • I failed in trying to make it easier for you to understand the problem.. details
  • Here is how you can solve your problem with genson (for this example it is quite similar to jackson): CODESNIPPET_JAVA2 .. details
  • So when search for this exception I found the suggestion to use the CODETERM3 annotation with my CODETERM4 constructor.. details
  • Now when I try to use the Jackson CODETERM1 to deserialize this mess, I get a CODESNIPPET_JAVA2 .. details
  • Features Can generate classes for an arbitrarily complex hierarchy (recursively)Can read your existing Java classes and if it can deserialize into those structures, will do soWill prompt for user input when ambiguous cases exist .. details
  • Features Can generate classes for an arbitrarily complex hierarchy (recursively) Can read your existing Java classes and if it can deserialize into those structures, will do so Will prompt for user input when ambiguous cases exist .. details
  • Staxman may be right, see the [JSONNode ObjectNode subclass]( URL_http://javasourcecode.org/html/open - source/jackson/jackson-1.8.5/org/codehaus/jackson/node/ObjectNode.java.html) source (equals implementation starts on line 533) to see if that might work for you.. details
  • Is there any better way that I can avoid such duplicated work?. details
  • Turns out I was missing a third jar....ugh.. details
  • One that we can use internally and one that we will expose externally.. details
  • How do I fix this problem?. details
  • Jackson ObjectMapper cannot deserialize POJO, throws an exception: No suitable constructor found for type [...]: can not instantiate from JSON object.. details
  • This problem is different from this one: URL_http://stackoverflow.com/questions/8367445/deserializing-json-with- jackson-why-jsonmappingexception-no-suitable-construc [Deserializing-JSON- with-Jackson---Why-JsonMappingException-"No-suitable-constructor"?]. details
  • How do I fix this problem?. details
  • Jackson ObjectMapper cannot deserialize POJO, throws an exception: No suitable constructor found for type [...]: can not instantiate from JSON object.. details
  • and this one: URL_http://stackoverflow.com/questions/7625783 /jsonmappingexception-no-suitable-constructor-found-for-type-simple-type-class [JsonMappingException:-No-suitable-constructor-found-for-type-[simple- type,-class-]:-can-not-instantiate-from-JSON-object] and this one: URL_http://stackoverflow.com/questions/7625783 /jsonmappingexception-no-suitable-constructor-found-for-type-simple-type-class [JsonMappingException:-No-suitable-constructor-found-for-type-[simple- type,-class-]:-can-not-instantiate-from-JSON-object] as I have manually override the default constructor, and its not a subclass.. details
  • And if Jason object is your concern I had recommend you a Jackson Codhaus library .. details
  • URL_http://jira.codehaus.org/browse/JACKSON-767 [ URL_http://jira.codehaus.org/browse/JACKSON-767 ] Extending JsonDeserializer to check null but the problem is that it does not even executed on the null input.. details
  • We have tried 3 things: Upgrade to jackson 2.0.6 and use annotationcom.fasterxml.jackson.annotation.JsonPropertyBut, this just looks not working.. details
  • URL_http://jira.codehaus.org/browse/JACKSON-767 [ URL_http://jira.codehaus.org/browse/JACKSON-767 ] Extending JsonDeserializer to check null but the problem is that it does not even executed on the null input.. details
  • Writing our own @Required annotation and trying to check with ResourceFilter, but it seems I cannot get the actual object from the ContainerRequest and even if we could, not sure how to execute deep check of null reference in object.otherObject.someObject.fieldNotNullable CODESNIPPET_JAVA4 .. details
  • i checked the JSON format using some online services and it seems valid, while tryin gto parse JSON data i am getting following exception CODESNIPPET_JAVA3 .. details
  • i checked the JSON format using some online services and it seems valid, while tryin gto parse JSON data i am getting following exception CODESNIPPET_JAVA3 .. details
  • unless you are very concerned about memory usage, I would suggest you don't use the streaming API.. details
  • Since you are on mobile, there is obviously more concern about resources, so that's your call.. details
  • Jackson has no trouble deserializing that data into this class.. details
  • But I want to specify the implementation in source code because it's always the same.. details
  • But my validation fails with the error message - ["": domain: validation; keyword: properties; message: required property(ies) not found; missing: ["id","refName"]; required: ["id","refName"]] Is there a mistake in the way i used the refs ?. details
  • I was going to use something JsonView, but that has to be applied at the mapper layer for all instances of a class, and this is context dependent.. details
  • This seemed to do the trick for me: URL_http://stackoverflow.com/questions/3269459/how-to-serialize-joda-datetime- with-jackson-json-processer [How-to-serialize-Joda-DateTime-with-Jackson-JSON- processer?]. details
  • Or is the incoming data out of your hands and you just want to avoid the mapping exception telling you that jackson cannot find a property to set for incoming references?. details
  • Or is the incoming data out of your hands and you just want to avoid the mapping exception telling you that jackson cannot find a property to set for incoming references?. details
  • Are there any solutions for this problem?. details
  • For example, this behavior is off by default in Jackson but can be turned on with a configuration setting.. details
  • Right now I get the runtime exception: org.codehaus.jackson.map.exc.UnrecognizedPropertyException: Unrecognized field "PropertyMember" (Class com.obfuscated.general.Object), not marked as ignorable at [Source: java.io.StringReader@406754d6; line: 1, column: 30] (through reference chain: com.obfuscated.general.Object["PropertyMember"]) so how do I incorporate my mixin?. details
  • Currently, I have the following exception : CODESNIPPET_JAVA2 .. details
  • Any idea to solve this problem?. details
  • While I try to post json data to the service I get the following error: CODESNIPPET_JAVA1 .. details
  • You could use a specific serializer defined with JsonSerialize annotation URL_http://jackson.codehaus.org/1.2.1/javadoc/org/codehaus/jackson/map/annotat e/JsonSerialize.html [ URL_http://jackson.codehaus.org/1.2.1/javadoc/org/codehaus/j ackson/map/annotate/JsonSerialize.html] The problem is similar to this question: URL_http://stackoverflow.com/questions/11319445/java-to-jackson-json- serialization-money-fields [Java-to-Jackson-JSON-serialization:-Money-fields] .. details
  • You could use a specific serializer defined with JsonSerialize annotation URL_http://jackson.codehaus.org/1.2.1/javadoc/org/codehaus/jackson/map/annotat e/JsonSerialize.html [ URL_http://jackson.codehaus.org/1.2.1/javadoc/org/codehaus/j ackson/map/annotate/JsonSerialize.html] The problem is similar to this question: URL_http://stackoverflow.com/questions/11319445/java-to-jackson-json- serialization-money-fields [Java-to-Jackson-JSON-serialization:-Money-fields] .. details
  • Obviously, its showing conversion error.. details
  • Is there any way to serialize BigInteger field in plain format as String JavaScript object field, rather than Numeric in exponential notation (which is default behavior of Jackson)?. details
  • I get no errors, I'm using the same Jackson CODETERM4 files, and nothing else is different.. details
  • It's not clear to me what's going wrong or different between these two builds.. details
  • The default Jersey Jackson provider is configured to use JAXB annotations alongside Jackson ones ;-) The only issue is that the exact configuration of this provider is not documented :-(.. details
  • Yup, as [my self-answer]( URL_http://stackoverflow.com/a/9725228/139010 ) said, I'm trying out Jackson, which seems to be much less quirky.. details
  • Yup, as [my self-answer]( URL_http://stackoverflow.com/a/9725228/139010 ) said, I'm trying out Jackson, which seems to be much less quirky.. details
  • However, I kept getting this error whenever I'm deserializing the JSON file: CODESNIPPET_JAVA1 .. details
  • If truncation does occur the way explained, it would definitely be a bug.. details
  • If truncation does occur the way explained, it would definitely be a bug.. details
  • Then when I do CODETERM1 , all the numbers after the decimal point are lost.. details
  • Precision of double lost when reading from Jackson.. details
  • 2. for the complicated JSON types such as List/Map, store the result in native JSON format in String.. details
  • Unfortunately, I'm almost new to Java, and has no prior knowledge of Jackson (I have to use Jackson for this solution).. details
  • Unfortunately, I have no control on above method, and Jackson gives me parsed JSON in CODETERM1 .. details
  • I need a CODETERM2 where 1. for the primitive JSON types, instead of Integer, Long, Boolean, I want its toString() converted value.. details
  • I am using Jackson annotation for parsing JSON response into POJO object.I was using boolean variable in POJO for mapping values "true" and "false" coming from JSON.. details
  • TRUE or FALSE into boolean using Jackson JSON parsing.. details
  • TRUE or FALSE into boolean using Jackson JSON parsing.. details
  • But suddenly we are getting value as "TRUE" and "FALSE" into JSON and parsing failing for these values.Can anyone suggest way to map it to boolean as this variable is used so many places where i don't want to change logic to String to Boolean .. details
  • Even though I am 100% sure there is an error message part of the object before serialization.. details
  • ABean is a complex type containing also other objects** e.g.. details
  • Jackson JsonNode conversion - float precision problems.. details
  • I need to convert an object to JsonNode because I need to manipulate the generated Json before returning it.. details
  • I am trying to deserialize this JSON using Jackson and I'm having trouble with the array part which as you can see has no field names.. details
  • Classpath issues are quite notorious on servlet container deployments unfortunately.. details
  • CODETERM5 extends CODETERM6 The problem I have is little weird.. details
  • However, when I deploy it over tomcat in a war and I try to deserialize, it says no such class found Stacktrace: CODESNIPPET_JAVA1 .. details
  • It's a bit hard to help you since we don't have the Json structure you want to deserialize, but the problem here is Jackson has no idea how to deserialize your class when it is used as a map key**.. details
  • It's a bit hard to help you since we don't have the Json structure you want to deserialize, but the problem here is Jackson has no idea how to deserialize your class when it is used as a map key**.. details
  • Add a single string argument factory method (static) and annotate it with @JsonCreator 3.. details
  • Add a single string argument constructor to your FooType class 2.. details
  • I suspect something is wrong here.. details
  • When doing deserialization of such JSON data: {"productId":47552,"priority":78} Got this error: CODESNIPPET_JAVA2 .. details
  • you will still have some spaces between elements) but it's a cheap solution if you already have the JSON as a String.. details
  • you will still have some spaces between elements) but it's a cheap solution if you already have the JSON as a String.. details
  • I need to take the nice version of JSON code then convet it to ugly fom.. details
  • This is causing Jackson to fail.. details
  • The problem is the same as described here : URL_http://stackoverflow.com/questions/8526333/jackson-error-no-suitable- constructor [Jackson-error:-no-suitable-constructor] The class that you're trying to instantiate is not static.. details
  • This is causing Jackson to fail.. details
  • The problem is the same as described here : URL_http://stackoverflow.com/questions/8526333/jackson-error-no-suitable- constructor [Jackson-error:-no-suitable-constructor] The class that you're trying to instantiate is not static.. details
  • Note that the javadocs of JsonAnySetter is incorrect, as it states that it should be applied to 1-arg methods; you can always open a minor bug in Jackson ;) .. details
  • Note that the javadocs of JsonAnySetter is incorrect, as it states that it should be applied to 1-arg methods; you can always open a minor bug in Jackson ;) .. details
  • What I did was this:I created a new class that holds a Person object and Dog object, these classes needs to be static ( I found it URL_http://stackoverflow.com/questions/8526333/jackson-error-no-suitable- constructor [here] ).. details
  • I have used the name CODETERM2 for the wrapper object since it will merely serve as a CODETERM3 laceholder.. details
  • How might I achieve such a trick using Jackson?. details
  • The problem is I'm getting lost reading through the documentation about how to configure the mappings and annotations correctly to get the structure that I want.. details
  • It might be a bug in Jackson -- proxied classes may be explicitly prevented from being considered beans.. details
  • You could file a bug -- if Genson can handle it, Jackson should too.. details
  • It might be a bug in Jackson -- proxied classes may be explicitly prevented from being considered beans.. details
  • You could file a bug -- if Genson can handle it, Jackson should too.. details
  • I get this exception: CODESNIPPET_JAVA2 .. details
  • The problem seems to be the same that happens when hibernate proxied objects are serialized but I don't know how and if I can use the Jackson-hibernate- module to solve my issue.. details
  • I get this exception: CODESNIPPET_JAVA2 .. details
  • I'm trying to serialize a Java Dynamic proxy using Jackson library but I get this error: CODESNIPPET_JAVA1 .. details
  • UPDATE**:The BUG was solved from Jackson 2.0.6 release .. details
  • The problem seems to be the same that happens when hibernate proxied objects are serialized but I don't know how and if I can use the Jackson-hibernate- module to solve my issue.. details
  • I found that the library was real hard to extend (for my use cases it was impossible without rewriting a big part).. details
  • You can configure a lot of things (use fields and/or methods, use constructor with arguments and without any annotation, filter properties by visibility and a lot more).. details
  • Note also that Gson comes with less features out of the box than Genson or Jackson.I also tried to implement the features I needed in Gson but I found that the Beans databinding part was not extensible (near everything in a single class with no extension points), so I would have to rewrite it.. details
  • First thing to note is that Jackson is the fastest json/java library out there (Gesnon tries to beat it but its quite hard).. details
  • First thing to note is that Jackson is the fastest json/java library out there (Gesnon tries to beat it but its quite hard).. details
  • Jackson 2.1 will add a feature to force serialization of even the force reference as id (by new property, "firstAsId" for CODETERM2 ).. details
  • The @JsonIdentityInfo annotation comes pretty close but misses the mark a little bit since, as far as I can tell, it will always serialize the full child object on the first occurrence.. details
  • What @JsonIdentityInfo does makes it more difficult to deal with on the client-side (we can assume that the client knows how to map the customer ID back into the full customer information).. details
  • So, I had to selectively disable UNWRAP_ROOT_PROPERTY for certain domain objects, so that Jackson would be open to parsing alternatives.. details
  • So, main challenge here is to represent parent object as its id.. details
  • UPD: Now trying to use CODETERM1 approch, not happy with it btw, because i need to write TypeAdapterfor everyy single type i have and all they going to contain almost the same code: CODESNIPPET_JAVA3 .. details
  • UPD2: I found that htere is my fail in tis isssue, just did not setup things propertly, and my web.xml was lacking this entry: CODESNIPPET_JAVA7 .. details
  • objectMapper.configure(SerializationConfig.Feature.DEFAULT_VIEW_INCLUSION, false); That is what I want to do -- but the line is not compiling for me.. details
  • Having trouble with DEFAULT_VIEW_INCLUSION setting in jackson views.. details
  • It looks like you want to URL_http://fasterxml.github.com/jackson-databind/jav adoc/2.0.2/com/fasterxml/jackson/databind/ObjectMapper.html#disable%28com.fast erxml.jackson.databind.DeserializationFeature%29 [disable] URL_http://fasterxml.github.com/jackson-databind/javadoc/2.0.2/com/fasterxml/j ackson/databind/DeserializationFeature.html#FAIL_ON_UNKNOWN_PROPERTIES [FAIL_ON_UNKNOWN_PROPERTIES] .. details
  • This is the error I get when deserializing it: CODESNIPPET_JAVA3 .. details
  • Where I'm struggling is getting the JSON deserialization to work as seamlessly as the XML deserialization.. details
  • Where the CODETERM3 annotation was critical to get the XML deserialization working properly, it seemed that the equivalent for JSON was CODETERM4 .. details
  • I then feed it my test input: CODETERM5 but all I can get is: "org.codehaus.jackson.map.JsonMappingException: Root name 'first-action' does not match expected ('action') for type [simple type, class com.alu.openstack.domain.compute.server.actions.BaseAction]" Unfortunately since I'm trying to be compatible with someone else's API I can't change my sample input - CODETERM6 has to work, and deliver to my method an object of class FirstAction.. details
  • (The action doesn't have any fields, which is why null shouldn't be a problem - it's the type of the class that's important).. details
  • (The action doesn't have any fields, which is why null shouldn't be a problem - it's the type of the class that's important).. details
  • There is a URL_http://jira.codehaus.org/browse/JACKSON-694 [bug] for this behavior, but it was closed as "cannot reproduce": the method that's being called doesn't declare that it can throw, so swallowing exceptions is apparently an appropriate solution (yes, that was sarcasm).. details
  • Unfortunately, Jackson doesn't have any logging ... and there are a lot of comments in the codebase wishing it did, so I suspect this isn't the only hidden gotcha.. details
  • There is a URL_http://jira.codehaus.org/browse/JACKSON-694 [bug] for this behavior, but it was closed as "cannot reproduce": the method that's being called doesn't declare that it can throw, so swallowing exceptions is apparently an appropriate solution (yes, that was sarcasm).. details
  • This could potentially lead to endless loop, so Jackson is throwing an error.. details
  • This could potentially lead to endless loop, so Jackson is throwing an error.. details
  • To deserialise JSON string to a list of class, different ways listed at URL_http://stackoverflow.com/questions/7246157/how-to-parse-a-json-string-to- an-array-using-jackson [StackOverflow-question] Type 1 ( URL_http://jackson.codehaus.org/1.9.9/javadoc/org/codehaus/jackson/ma p/type/TypeFactory.html#constructCollectionType%28java.lang.Class,%20java.lang .Class%29 [docs-link] ): CODESNIPPET_JAVA1 .. details
  • Type 2 ( URL_http://jackson.codehaus.org/1.9.9/javadoc/org/codehaus/jackson/ma p/type/TypeFactory.html#constructCollectionType%28java.lang.Class,%20java.lang .Class%29 [docs-link] ): CODESNIPPET_JAVA2 .. details
  • Type 2 ( URL_http://jackson.codehaus.org/1.9.9/javadoc/org/codehaus/jackson/ma p/type/TypeFactory.html#constructCollectionType%28java.lang.Class,%20java.lang .Class%29 [docs-link] ): CODESNIPPET_JAVA2 .. details
  • To deserialise JSON string to a list of class, different ways listed at URL_http://stackoverflow.com/questions/7246157/how-to-parse-a-json-string-to- an-array-using-jackson [StackOverflow-question] Type 1 ( URL_http://jackson.codehaus.org/1.9.9/javadoc/org/codehaus/jackson/ma p/type/TypeFactory.html#constructCollectionType%28java.lang.Class,%20java.lang .Class%29 [docs-link] ): CODESNIPPET_JAVA1 .. details
  • PS: I dont want to give heads up for fight between Jackson vs Gson ;-) .. details
  • I am relatively new to jackson and am trying to import json into mysql through hibernate 3.3 and vice verse and having problem about jackson-module-hibernate From its github site: ObjectMapper mapper new ObjectMapper();mapper.registerModule(new HibernateModule()); and I think I need to change it to : mapper.registerModule(new Hibernate4Module()); However, there is a type mismatch : mapper.registerModule expects org.codehaus.jackson.map.Module interface,but the Hibernate4Module extends com.fasterxml.jackson.databind.Module.. details
  • Therefore, I get compilation error.. details
  • Therefore, I get compilation error.. details
  • This helps keep your code object-oriented...and your app logic can then refer to domain objects instead of manipulating basic strings.. details
  • It certainly seems better than pasting links that could over time become stale.. details
  • Or annotation their data objects directly (no decoupling or multiple configurations on how to expose your objects).. details
  • So far I've only seen people serialize their object to JSON inside of the Controller's handling method (violating the URL_http://en.wikipedia.org/wiki/Don%27t_repeat_yourself [DRY- principle] repeatedly in every method).. details
  • I want to make sure that the JSON files generated by Jackson are never pretty print.. details
  • Alternatively, is there a sure-fire way to ensure the JSON file is not pretty print?. details
  • JSON with Jackson: Desirialize fails if abstract methods are used (Polymorphic Type Handling).. details
  • i have a question concerning Json deserialization with Jackson _(edit 2.0.4 version)_**.. details
  • I have no problems, if this Bean will be serialized.. details
  • But the desirialize failed: the exception Unrecognized field "type"will be thrown.. details
  • P.S The exception com.fasterxml.jackson.databind.exc.UnrecognizedPropertyException: Unrecognized field "type" (class tst.SimpleTestMain$FirstChild), not marked as ignorable (4 known properties: , "id", "maxCount", "code", "minCount"]) at [Source: java.io.StringReader@1ad9fa; line: 1, column: 125] (through reference chain: tst.Fam["members"]->tst.FirstChild["type"]) at com.fasterxml.jackson.da tabind.exc.UnrecognizedPropertyException.from(UnrecognizedPropertyException.ja va:79) at com.fasterxml.jackson.databind.DeserializationContext.reportUnknownP roperty(DeserializationContext.java:568) and the example class CODESNIPPET_JAVA1 .. details
  • No need for setters as the objects are read only, besides, changing a PK is a bad idea.. details
  • When trying to read in the Json I get the error: CODESNIPPET_JAVA1 .. details
  • After a few quick google searches, it appears that my class needs either a URL_http://stackoverflow.com/questions/7625783/jsonmappingexception-no- suitable-constructor-found-for-type-simple-type-class [default-constructor] or to URL_http://www.cowtowncoder.com/blog/archives/2011/07/entry_457.html [override-the-default-constructor-with-annotations] .. details
  • After a few quick google searches, it appears that my class needs either a URL_http://stackoverflow.com/questions/7625783/jsonmappingexception-no- suitable-constructor-found-for-type-simple-type-class [default-constructor] or to URL_http://www.cowtowncoder.com/blog/archives/2011/07/entry_457.html [override-the-default-constructor-with-annotations] .. details
  • Unfortunately, the class in which this is failing is from a 3rd party library and that class does not have a default constructor and I obviously cannot over-write the code.. details
  • I tried gson & Jackson libraries, but they seem to have problems as the formatting of this json appears different.. details
  • If json is normal, is something wrong with my java models?. details
  • Even after discarding the outer wrapper object you still have the problem of your CODETERM7 objects being wrapped in a single-property object.. details
  • That might result in less code, but it seems no less clumsy than using two wrappers.. details
  • That might result in less code, but it seems no less clumsy than using two wrappers.. details
  • Even after discarding the outer wrapper object you still have the problem of your CODETERM7 objects being wrapped in a single-property object.. details
  • Failed to set access.. details
  • I had posted the question wrongly.. details
  • I have an application which makes use of an external library (Jackson), and the method I need requires a class literal as an argument.. details
  • I've looked at custom serializers, but frankly am quite lost at what it's talking about, and would like some help in how I can go about this.. details
  • Unfortunately there are certain combinations of features that may not be possible to implement properly; and this may be one of those (I am not 100% sure: feel free to file a Bug/RFE for Jackson github issues or Jira).. details
  • Unfortunately there are certain combinations of features that may not be possible to implement properly; and this may be one of those (I am not 100% sure: feel free to file a Bug/RFE for Jackson github issues or Jira).. details
  • I'm experiencing troubles, though, into deserializing "flat" JSONs to a class which is a composition of another, when both are meant to be immutable.. details
  • This may be my ignorance showing, but what about marking bar as transient?. details
  • Jackson JSON to JAVA conversion problems.. details
  • And the output: FAILED test1: false test2: false test3: null When attempting to convert the JSON Boolean to a String it was successful which is problematic for me because my current method looks similar to what is below and when the object deserialize is of the wrong type it causes problems down the road.. details
  • And the output: FAILED test1: false test2: false test3: null When attempting to convert the JSON Boolean to a String it was successful which is problematic for me because my current method looks similar to what is below and when the object deserialize is of the wrong type it causes problems down the road.. details
  • I am facing the following problems.. details
  • The problem affects numbers, CODETERM5 , CODETERM6 , ... My question is: How to make Jackson to perform the wrapping?. details
  • To make the story complete: Jackson serializer is used as message convertor for Spring MVC, and I doubt it is fairly easy to write a hook to intercept serialization of primitives (which will not call Jackson but will simply return CODETERM11 when necessary).. details
  • And by default Jackson use the getter and setter to serialize and deserialize.. details
  • Jackson only contains full document data if using Tree Model (JsonNode); otherwise operations are incremental, so memory usage should not be a problem.. details
  • Jackson only contains full document data if using Tree Model (JsonNode); otherwise operations are incremental, so memory usage should not be a problem.. details
  • Jackson only contains full document data if using Tree Model (JsonNode); otherwise operations are incremental, so memory usage should not be a problem.. details
  • But it sounds like you are more worried about duplication -- if this is indeed a problem, you may need to wait for Jackson 2.0, which will add support for handling arbitrary references with identity (i.e.. details
  • I have one more concern about possible issues while converting large and complex java objects to JSON.. details
  • I have one more concern about possible issues while converting large and complex java objects to JSON.. details
  • I have one more concern about possible issues while converting large and complex java objects to JSON.. details
  • I have one more concern about possible issues while converting large and complex java objects to JSON.. details
  • I have compiled & run the code but I'm not sure if this would this cause any problems down the road.. details
  • (Actually, I'm not sure what type enforcement Jackson does, maybe it will allow anything anyway...) .. details
  • But this may not be correct for another instance of the JSON file.. details
  • I suspect that the automatic object mapping may not be an option in this case - can someone confirm or deny this?. details
  • Jackson ObjectMapper with arbitrary JSON keys.. details
  • To suppress serializing CODETERM10 entries with CODETERM11 keys, further custom serialization processing would be necessary.. details
  • The mapper.viewWriter method is deprecated since 1.9 and is now mapper.writerWithView(JacksonViews.ItemView.class).writeValue(writer, myItem);.. details
  • In pseudo code, the following happens (using Jackson for JSON serialization/deserialization): CODESNIPPET_JAVA1 .. details
  • I'm using Jackson with Spring MVC and bean validation.Problem is Jackson is complaining about deserialization problems, before I reach the spring mvc layer .. so I cannot send to my client the errors in a consistent way.. details
  • I'm using Jackson with Spring MVC and bean validation.Problem is Jackson is complaining about deserialization problems, before I reach the spring mvc layer .. so I cannot send to my client the errors in a consistent way.. details
  • Why do you want to ignore this error?. details
  • Why do you want to ignore this error?. details
  • Maybe weblogic add something, I don't know weblogic, I must just integrate with a project unfortunatelly made for him.. details
  • Im using @XmlSeeAlso to specify all inheriting classes (15 :-), without it serialization caused an error.. details
  • Im using @XmlSeeAlso to specify all inheriting classes (15 :-), without it serialization caused an error.. details
  • I have a problem while parsing a json with jackson.. details
  • and here is the throwen Exception: CODESNIPPET_JAVA2 .. details
  • By default property access is used.. details
  • I've got this JSON : {"success":false} I want to deserialize this into this POJO : CODESNIPPET_JAVA1 .. details
  • for some testing, instead of doing this using Jackson, I try to type an SQL manually, and here is my problem - I can't seem to get ti right.. details
  • Can you tell me where I am wrong in my SQL insert statement?. details
  • for some testing, instead of doing this using Jackson, I try to type an SQL manually, and here is my problem - I can't seem to get ti right.. details
  • Sorry people for yelling out loud - I found the answers here URL_http://wiki.fasterxml.com/JacksonFAQDateHandling [ URL_http://wiki.fasterxml.com/JacksonFAQDateHandling ] , here URL_http://wiki.fasterxml.com/JacksonFAQ#Serializing_Dates [ URL_http://wiki.fasterxml.com/JacksonFAQ Serializing_Dates] , here URL_http://wiki.fasterxml.com/JacksonHowToCustomSerializers [ URL_http://wiki.fasterxml.com/JacksonHowToCustomSerializers ] here URL_http://jackson.codehaus.org/1.1.2/javadoc/org/codehaus/jackson/map/util/St dDateFormat.html [ URL_http://jackson.codehaus.org/1.1.2/javadoc/org/codehaus/jacks on/map/util/StdDateFormat.html] Using the @JsonSerialize(using= ... ) way: CODESNIPPET_JAVA1 .. details
  • Sorry people for yelling out loud - I found the answers here URL_http://wiki.fasterxml.com/JacksonFAQDateHandling [ URL_http://wiki.fasterxml.com/JacksonFAQDateHandling ] , here URL_http://wiki.fasterxml.com/JacksonFAQ#Serializing_Dates [ URL_http://wiki.fasterxml.com/JacksonFAQ Serializing_Dates] , here URL_http://wiki.fasterxml.com/JacksonHowToCustomSerializers [ URL_http://wiki.fasterxml.com/JacksonHowToCustomSerializers ] here URL_http://jackson.codehaus.org/1.1.2/javadoc/org/codehaus/jackson/map/util/St dDateFormat.html [ URL_http://jackson.codehaus.org/1.1.2/javadoc/org/codehaus/jacks on/map/util/StdDateFormat.html] Using the @JsonSerialize(using= ... ) way: CODESNIPPET_JAVA1 .. details
  • Sorry people for yelling out loud - I found the answers here URL_http://wiki.fasterxml.com/JacksonFAQDateHandling [ URL_http://wiki.fasterxml.com/JacksonFAQDateHandling ] , here URL_http://wiki.fasterxml.com/JacksonFAQ#Serializing_Dates [ URL_http://wiki.fasterxml.com/JacksonFAQ Serializing_Dates] , here URL_http://wiki.fasterxml.com/JacksonHowToCustomSerializers [ URL_http://wiki.fasterxml.com/JacksonHowToCustomSerializers ] here URL_http://jackson.codehaus.org/1.1.2/javadoc/org/codehaus/jackson/map/util/St dDateFormat.html [ URL_http://jackson.codehaus.org/1.1.2/javadoc/org/codehaus/jacks on/map/util/StdDateFormat.html] Using the @JsonSerialize(using= ... ) way: CODESNIPPET_JAVA1 .. details
  • There may be some reflection trick to extract the CODETERM1 and set the value, but, if so, this would be really heavy-handed.. details
  • The problem is that sometimes I want to show a field and sometimes not.. details
  • but this will disable also other annotations that I need.. details
  • Actually I'm using the @JsonIgnore to avoid the printing of the property when I don't need it.. details
  • A little pojo to understand what I want: CODESNIPPET_JAVA2 .. details
  • WRT to the following question: URL_http://stackoverflow.com/questions/4428109/jersey-jackson-json-date- serialization-format-problem-how-to-change-the-form [Jersey-+-Jackson-JSON- date-serialization-format-problem---how-to-change-the-format-or-use-custom- JacksonJsonProvider] .. details
  • But I use Jackson instead of Gson because spring uses Jackson as default handler for json.. details
  • I am trying to get a method in springmvc to accept a partial json string of an object, and have jackson automatically de-serialize it for me.I can solve it by making a temporary object with only the attributes I want, or pass it in as a string and use Gson to desearialize it for me, but these feel hacky.. details
  • If this is a problem, I suggest you do the 3 3. create a custom Jackson ObjectMapper class to automate this process** The idea is to build generic process for 2 so that it could handle any nested request.. details
  • If this is a problem, I suggest you do the 3 3. create a custom Jackson ObjectMapper class to automate this process** The idea is to build generic process for 2 so that it could handle any nested request.. details
  • See the quick and dirty Jackson tutorial: URL_http://wiki.fasterxml.com/JacksonInFiveMinutes [Jackson-in-5-minutes] .. details
  • Then the annotations are unnecessary.. details
  • See the quick and dirty Jackson tutorial: URL_http://wiki.fasterxml.com/JacksonInFiveMinutes [Jackson-in-5-minutes] .. details
  • Then the annotations are unnecessary.. details
  • A problem with your example and Jackson is the default choices of JSON property names: Jackson will see CODETERM1 and CODETERM2 and choose CODETERM3 as the JSON property name.. details
  • Rather than creating redundant info, i wish to simply write the code/id of the object during serialization and load the object through a look up during de-serialization.. details
  • This confuses Jackson's CODETERM4 complaining about "confliciting setter definitions": CODESNIPPET_JAVA2 .. details
  • I'm also aware that a bottom-line solution would be to develop a custom Jackson deserializer (although very complex in my case).. details
  • For exceptions, the solution proposed by ericacm is the simplest way to go (remember to annotate the 'BadStatus' return type with @ResponseBody).. details
  • When Jackson goes to deserialize the inner type, B, it seems to get confused and is trying to deserialize it as an A.. details
  • In the multi-profile case, I get this exception: CODESNIPPET_JAVA2 .. details
  • The problem is, the multi-profile interface turns the sub objects into strings.. details
  • Example of a single object: CODETERM1 Example of a multi object: CODETERM2 (Sorry can't use real data) Notice that the sub objects are actually strings, with escaped quotes inside them.. details
  • I am getting the following exception (I fail to understand what I was doing wrong): CODESNIPPET_JAVA3 .. details
  • I am getting the following exception (I fail to understand what I was doing wrong): CODESNIPPET_JAVA3 .. details
  • I somehow misread that to mean the opposite; that the type info would apply to the container and not the elements.. details
  • So it turns out that I had misunderstood the URL_http://jackson.codehaus.org/1 .9.4/javadoc/org/codehaus/jackson/annotate/JsonTypeInfo.html [Javadoc-for- CODETERM1] .. details
  • (...) There is no per-property way to force type information to be included for type of container (structured type); for container types one has to use annotation for type declaration.. details
  • Obviously that was wrong.. details
  • (...) There is no per-property way to force type information to be included for type of container (structured type); for container types one has to use annotation for type declaration.. details
  • So it turns out that I had misunderstood the URL_http://jackson.codehaus.org/1 .9.4/javadoc/org/codehaus/jackson/annotate/JsonTypeInfo.html [Javadoc-for- CODETERM1] .. details
  • Obviously that was wrong.. details
  • I somehow misread that to mean the opposite; that the type info would apply to the container and not the elements.. details
  • and I'm trying to deserialize them into these classes (all in CODETERM4 ): CODESNIPPET_JAVA2 .. details
  • As you can see, the owner is declared as a Human, not an Animal, so I want to be able to omit CODETERM5 and have Jackson infer the type as it normally would.. details
  • <strike>However, this cannot be leveraged to annotate the element type of a list.</strike> (Incorrect, see answer) .. details
  • I'm re-asking an unanswered question from the now read-only google groups App Engine for Java because I have the exact same problem.. details
  • It works _almost_ fine, however the _first_ request to the server always ends up with the exception: java.lang.NoClassDefFoundError: org/codehaus/jackson/xc/JaxbAnnotationIntrospector For some reason gae/jersey cannot find this class on the initial request.. details
  • It definitely looks wrong -- and which is why I use Jackson.. details
  • I worked around this, creating two wrapper classes, but this looks really ugly.. details
  • But it seems that they used some wrapper for some of the responses, which is causing a bit of a pain.. details
  • The trick was to extend the JacksonJsonProvider (which we use in CXF to force it to use Jackson instead of Jettison) and tell it to bypass Jackson altogether when dealing with raw Strings: CODESNIPPET_JAVA1 .. details
  • works, but poorly (wrong content type, which screws up .Net WCF apps that call us) .. details
  • The only thing that works is if I set the media type to plain string, which bypassed Jackson, but is not good, since I am returning the wrong content type i.e.. details
  • Jackson SAX parser throws exception when parsing huge JSON.. details
  • It's not an object or iterator creation problem: I can delete that where parser throws exception, but it will fail in the same place.. details
  • I tried to use BufferedInputStream with predefined block size instead of InputStream but it had no effect.. details
  • Pressing a big green button near my answer would really help me with my inferiority complex ;).. details
  • I'm writing the back end of a web application, that uses REST APIs for extracting data that is used for reports in the client side.The framework I'm writing on uses Codehaus jackson for parsing the requests from JSON to data objects (data beans).I have a bunch of APIs of this sort, 10-15.each of them gets a different request object from the client side (though some inheritance do exist).what I want to do is add logging (using log4j) for each of these APIs so that when I enter each of the methods the request data object will be logged.the simple solution would be to implement a toString() method for each of these data objects, but I want to avoid going over all of these data objects and see if there's a solution similiar to the way that jackson parses the JSON into an object.I.e have the object converted back to its textual format in order to put it into the log.. details
  • It's not a bug, it's feature -- by default OutputStream is indeed closed when using high-level ObjectMapper.writeValue() methods.. details
  • ((Map) fwers.get(0).get("status")).get("retweet_count")If all the casting starts to feel gross, you can use Beans to do your serialization URL_http://wiki.fasterxml.com/JacksonDataBinding .. details
  • ((Map) fwers.get(0).get("status")).get("retweet_count")If all the casting starts to feel gross, you can use Beans to do your serialization URL_http://wiki.fasterxml.com/JacksonDataBinding .. details
  • The mystery here is that JSON as present has no START_ARRAY token ("[") anywhere, so I find it hard to believe that JSON is being used for deserialization.. details
  • Its weird, cause I got another error before, when I had an empty constructor... Anyways, this particular issue is resolved... no i have to deal with the "__type" thing that .NET adds on serialization.... details
  • I followed the instructions URL_http://www.mkyong.com/webservices/jax-rs/json- example-with-jersey-jackson/ [here] which show how to use Jersey and Jackson POJOs(as opposed to JAXB).. details
  • Solution is wrong because declaration of Map should be Map, NOT untyped Map.. details
  • I tried that and it doesn't work as well....{ "cache" : { "0f861a9a-0a3e- 40a7-8ff3-0b83d8070876" : { "name" : "BAR.xml", "filePath" : "/FOO/repo/BAR.xml" }, "f3cbb32e-b7b8-4af1-b48b-7ea393de7971" : { "name" : "BLAH.xml", "filePath" : "/FOO/repo/BLAH.xml" }, "012009b6-26e9-4bc1-9050-2a4ac9546c7e" : { "name" : "Check System.xml", "filePath" : "/FOO/repo/Check System.xml" } }}org.codehaus.jackson.map.JsonMappingException: Can not deserialize instance of com.hp.oo.studio.shared.UUIDRegistry.UUIDMap out of START_ARRAY token.. details
  • full exception stack trace please.. details
  • i don't know anything about Jackson, but this implementation seems like too much work and over-complicated.. details
  • I recently encountered a similar problem: Jackson - serialization of entities with birectional relationships (avoiding cycles) So the solution is to upgrade to Jackson 2.0, and add to classes the following annotation: CODESNIPPET_JAVA1 .. details
  • Jackson JSON serialization, recursion avoidance by level defining.. details
  • Jackson ResourceAccessException: I/O error: Unrecognized field.. details
  • The number of coupons are not constant here and would vary from response to response.My dilemma is to create corresponding java class which could hold such object.. details
  • Jackson does not depend on Jettison (or vice versa).. details
  • However, this does not seem to solve my problem this time around.. details
  • When I submit the form using this code I get the following error message: java.lang.NoClassDefFoundError: com/fasterxml/jackson/annotation/JsonAutoDetect com.fasterxml.jackson.databind .introspect.VisibilityChecker$Std.. details
  • (ObjectMapper.java:197) edu.tcnj.FormHandling.createJson(FormHandling.java:115) edu.tcnj.FormHandling.doGet(FormHandling.java:104) edu.tcnj.FormHandling.doPost(FormHandling.java:131) javax.servlet.http.HttpServlet.service(HttpServlet.java:641) javax.servlet.http.HttpServlet.service(HttpServlet.java:722) Now I know that error means that it isn't finding the Jackson databind library.. details
  • When I submit the form using this code I get the following error message: java.lang.NoClassDefFoundError: com/fasterxml/jackson/annotation/JsonAutoDetect com.fasterxml.jackson.databind .introspect.VisibilityChecker$Std.. details
  • However, this does not seem to solve my problem this time around.. details
  • (ObjectMapper.java:197) edu.tcnj.FormHandling.createJson(FormHandling.java:115) edu.tcnj.FormHandling.doGet(FormHandling.java:104) edu.tcnj.FormHandling.doPost(FormHandling.java:131) javax.servlet.http.HttpServlet.service(HttpServlet.java:641) javax.servlet.http.HttpServlet.service(HttpServlet.java:722) Now I know that error means that it isn't finding the Jackson databind library.. details
  • I am developing in Eclipse and I know the build path messes up from time to time so I also placed the libraries in the WebContent\WEB-INF\lib folder.. details
  • Jackson - serialization of entities with birectional relationships (avoiding cycles).. details
  • If I am on the right track, what is class for the default JSON filter that I can extend?. details
  • A solution was found here: URL_http://jersey.576304.n2.nabble.com/JsonP-without-using-JSONWithPadding- td7015082.html [ URL_http://jersey.576304.n2.nabble.com/JsonP-without-using - JSONWithPadding-td7015082.html] However, that solution extends the Jackson JSON object, not the default JSON provider.. details
  • A solution was found here: URL_http://jersey.576304.n2.nabble.com/JsonP-without-using-JSONWithPadding- td7015082.html [ URL_http://jersey.576304.n2.nabble.com/JsonP-without-using - JSONWithPadding-td7015082.html] However, that solution extends the Jackson JSON object, not the default JSON provider.. details
  • GSON was 5x slower than org.json, and 10x slower than Jackson.. details
  • I've been given a sample of the resulting JSON and I am concerned that I will have to parse the json by hand, that I won't be able to use normal class mapping provided by tools such as GSON or Jackson.. details
  • Lastly, I am concerned that the "point" object is not similar.. details
  • The sections I'm concerned with are the meta data "serie" array having different parameters.. details
  • Jackson does have a lot of boilerplate, but I guess that's OK.. details
  • I also looked online at URL_http://wiki.fasterxml.com/JacksonInFiveMinutes [JacksonInFiveMinutes] but had a terrible time understanding the stuff about CODETERM9 and how it relates to my issue.. details
  • I am aware that I could alleviate this issue by creating a "Response" object that has only an CODETERM8 in it, but then I would have to create these somewhat useless objects for every single type I want to return.. details
  • I also looked online at URL_http://wiki.fasterxml.com/JacksonInFiveMinutes [JacksonInFiveMinutes] but had a terrible time understanding the stuff about CODETERM9 and how it relates to my issue.. details
  • I recommend GSON, as this has small memory footpring (just pull parsing is about 16K , jackson is way bigger) Your code is problematic because you allocate: buffer to hold all the string data coming from service all the JSON DOM objects and this is slow, and gives you memory meltdown.. details
  • I recommend GSON, as this has small memory footpring (just pull parsing is about 16K , jackson is way bigger) Your code is problematic because you allocate: buffer to hold all the string data coming from service all the JSON DOM objects and this is slow, and gives you memory meltdown.. details
  • I recommend GSON, as this has small memory footpring (just pull parsing is about 16K , jackson is way bigger) Your code is problematic because you allocate: buffer to hold all the string data coming from service all the JSON DOM objects and this is slow, and gives you memory meltdown.. details
  • JSON streaming is useful in just a few situations: When it is impossible or undesirable to load the entire object model into memory.. details
  • JSON streaming is useful in just a few situations: When it is impossible or undesirable to load the entire object model into memory.. details
  • Maybe you could include POJO definitions you did try, to give an idea of what might have gone wrong?. details
  • URL_http://jackson.codehaus.org/1.9.4/javadoc/org/codehaus/jackson/map/Se rializationConfig.html#withDateFormat%28java.text.DateFormat%29 [SerializationConfig-.withDateFormat] In addition to constructing instance with specified date format, will enable or disable Feature.WRITE_DATES_AS_TIMESTAMPS (enable if format set as null; disable if non-null) .. details
  • URL_http://jackson.codehaus.org/1.9.4/javadoc/org/codehaus/jackson/map/Se rializationConfig.html#withDateFormat%28java.text.DateFormat%29 [SerializationConfig-.withDateFormat] In addition to constructing instance with specified date format, will enable or disable Feature.WRITE_DATES_AS_TIMESTAMPS (enable if format set as null; disable if non-null) .. details
  • I also have classes for ResponseHeader.java and ResponseBody.java which are similar.The problem is that while the header field unmarshalls to the ResponseHeader object correctly because the parameter name is indeed 'header', the ServiceResponse fails since the class name starts with a capital S and not a lowercase s. I get the following exception when trying to parse the response: CODESNIPPET_JAVA3 .. details
  • I also have classes for ResponseHeader.java and ResponseBody.java which are similar.The problem is that while the header field unmarshalls to the ResponseHeader object correctly because the parameter name is indeed 'header', the ServiceResponse fails since the class name starts with a capital S and not a lowercase s. I get the following exception when trying to parse the response: CODESNIPPET_JAVA3 .. details
  • What am I doing wrong here?. details
  • I tried changing the JSON file and making the names into an array, and then changing the code in the Data class and making Names an Array of object Names, but got an error saying CODESNIPPET_JAVA7 .. details
  • I tried changing the JSON file and making the names into an array, and then changing the code in the Data class and making Names an Array of object Names, but got an error saying CODESNIPPET_JAVA7 .. details
  • The full JSON file is a lot more complex than this, this is just a example of how it is laid out.. details
  • A side benefit of this is that Jackson generates much better error messages in the case that the client passes it bogus JSON content, compared to Jersey's native JSON handling implementation.. details
  • A side benefit of this is that Jackson generates much better error messages in the case that the client passes it bogus JSON content, compared to Jersey's native JSON handling implementation.. details
  • One setting it's messing with is CODETERM1 , the URL_http://wiki.fasterxml.com/JacksonFeaturesSerialization [Jackson-default] is CODETERM2 however Spring has somewhere changed this to CODETERM3 and also provided a date format.. details
  • I'm puzzled as to why using a default inclusion of jackson that Spring seems to have customised the default Jackson configuration.. details
  • One setting it's messing with is CODETERM1 , the URL_http://wiki.fasterxml.com/JacksonFeaturesSerialization [Jackson-default] is CODETERM2 however Spring has somewhere changed this to CODETERM3 and also provided a date format.. details
  • Doing this without any annotations or other incantations to try to make it work gives me the following error in my unit test: CODESNIPPET_JAVA1 .. details
  • I've also URL_http://stackoverflow.com/questions/8565299/polymorphism-in-json- jersey-and-jackson [followed-the-instructions-at-another-StackOverflow-post] , and I'm getting the same error.. details
  • However, I (naively, perhaps) expected Jackson to look for interfaces that extend the base Credentials interface and try to match up the fields in those interfaces to the fields it found in the JSON object.. details
  • The error makes sense; Jackson is trying to map the contents of my JSON file to an empty interface.. details
  • Is there any way I can enforce such field /attribute naming policies and use them without annotating the corresponding attribute for every field?. details
  • Report an error?Why not an exception?. details
  • Like Jackson, Gson has APIs to recursively skip an unwanted value; Gson calls this URL_http://google-gson.googlecode.com/svn/trunk/gson/docs/javadocs/com/go ogle/gson/stream/JsonReader.html#skipValue%28%29 [skipValue()] .. details
  • Your best choice is a custom serializer/deserializer, since there is no way for Jackson to know that your Map is "faking it" (i.e.. details
  • But if CODETERM1 does not work, that sounds like a bug.. details
  • But if CODETERM1 does not work, that sounds like a bug.. details
  • I've started to using Json with Jackson library and i found little problem.. details
  • I've started to using Json with Jackson library and i found little problem.. details
  • How can I disable Map- style treatment of this class, and have it be serialized either as POJO or via the CODETERM5 annotation?. details
  • Each individual record is read in a tree structure, but the file is never read in its entirety into memory, making it possible to process JSON files gigabytes in size while using minimal memory.. details
  • Each individual record is read in a tree structure, but the file is never read in its entirety into memory, making it possible to process JSON files gigabytes in size while using minimal memory.. details
  • Each individual record is read in a tree structure, but the file is never read in its entirety into memory, making it possible to process JSON files gigabytes in size while using minimal memory.. details
  • Once you have this, you can access the data randomly, regardless of the order in which things appear in the file (in the example field1 and field2 are not always in the same order).. details
  • Each individual record is read in a tree structure, but the file is never read in its entirety into memory, making it possible to process JSON files gigabytes in size while using minimal memory.. details
  • Once you have this, you can access the data randomly, regardless of the order in which things appear in the file (in the example field1 and field2 are not always in the same order).. details
  • Just imagine the fields being sparse or the records having a more complex structure.. details
  • Just imagine the fields being sparse or the records having a more complex structure.. details
  • Jackson uses reflection, and you can manipulate getters/setters.. details
  • Still it gets the "Servlet.service() for servlet appServlet threw exception org.codehaus.jackson.map.exc.UnrecognizedPropertyException: Unrecognized field "value" (), not marked as ignorable" .. details
  • Still it gets the "Servlet.service() for servlet appServlet threw exception org.codehaus.jackson.map.exc.UnrecognizedPropertyException: Unrecognized field "value" (), not marked as ignorable" .. details
  • (jackson documentation is not easy to go through).. details
  • It is still possible for different accessors to use different annotations; so if only "getter" is to be ignored, other accessors (setter or field) would need explicit annotation to prevent ignoral (usually JsonProperty).. details
  • (jackson documentation is not easy to go through).. details
  • Anyone willing to spill the (java)beans, as it were?. details
  • Also since the last GSON release and the rewrite of the stream parser the speed gap has been closed quite a bit; you can use the stream parser impl of theirs to get near-Jackson parsing speeds if that is critical.. details
  • Jackson is faster, but the API is 37x more complex than the GSON API.. details
  • Also since the last GSON release and the rewrite of the stream parser the speed gap has been closed quite a bit; you can use the stream parser impl of theirs to get near-Jackson parsing speeds if that is critical.. details
  • Jackson is faster, but the API is 37x more complex than the GSON API.. details
  • Not sure if that helps with the issue itself, but Jackson definitely will block on reads when it has to.. details
  • CODETERM2 does have methods to access such extra buffered data, but the easiest way to solve this problem is to explicitly create CODETERM3 (via CODETERM4 ), and pass that to CODETERM5 , and not ask CODETERM6 to create one.. details
  • So the reader blocks and waits until the message is complete to parse it and process it.. details
  • My problem is, sometime some messages are skipped when reading.. details
  • To make it weirder, this doesn't happen all the time, but around 50%.. details
  • Since the it's a TCP socket, the order in which they arrived is guaranteed, so I suspect that the the CODETERM7 is silently discarding some stuff without throwing any exception.. details
  • My problem is, sometime some messages are skipped when reading.. details
  • If the server sends CODETERM1 , CODETERM2 and CODETERM3 , maybe the CODETERM4 is lost but the CODETERM5 is read with no problem.. details
  • So the reader blocks and waits until the message is complete to parse it and process it.. details
  • Would this answer your question: URL_http://wiki.fasterxml.com/JacksonFeatureUpdateValue [ URL_http://wiki.fasterxml.com/JacksonFeatureUpdateValue ] I am not sure you can avoid mapping.. details
  • Would this answer your question: URL_http://wiki.fasterxml.com/JacksonFeatureUpdateValue [ URL_http://wiki.fasterxml.com/JacksonFeatureUpdateValue ] I am not sure you can avoid mapping.. details
  • For now the solution I've come up with seem awfully convoluted: Current scary solution : CODESNIPPET_JAVA5 .. details
  • Previously it used to at least not through error for AllApplesDO and throws only for enclosed class.. now it throws for the first class itself.. details
  • Previously it used to at least not through error for AllApplesDO and throws only for enclosed class.. now it throws for the first class itself.. details
  • Not working:Getting following error:"org.codehaus.jackson.map.exc.UnrecognizedPropertyException: Unrecognized field "applesRequest" (Class com.smartshop.dao.AllApplesDO), not marked as ignorable".. details
  • Not working:Getting following error:"org.codehaus.jackson.map.exc.UnrecognizedPropertyException: Unrecognized field "applesRequest" (Class com.smartshop.dao.AllApplesDO), not marked as ignorable".. details
  • You might want to be less afraid of using external libraries.. details
  • You might want to be less afraid of using external libraries.. details
  • set somewhere, so jackson doesn't complain about the mismatch.. details
  • I'm having some difficulty trying to get Jackson to serialize/deserialize JSON date strings sent from an ASP.NET service.. details
  • @egervari how did you disable auto-discovery of JSON properties using @JsonAutoDetect?. details
  • @egervari how did you disable auto-discovery of JSON properties using @JsonAutoDetect?. details
  • Does jackson Handles/throws the Cyclic exception like net.sf.json.JSONException There is a cycle in the hierarchy!. details
  • Jackson deserialization error handling.. details
  • As to problem itself: this is usually caused by incompatible types used -- type used for deserialization (reading JSON value into POJO) must be such that CODETERM4 annotation is visible.. details
  • 2) Declaring more throws than needed is inconsistent with the actual contract of a function.. details
  • 2) Declaring more throws than needed is inconsistent with the actual contract of a function.. details
  • @Tinctorius -- while I can see a case for suppressing IOExceptions for case where String is passed, this is due to the fact that after initializations, Strings are read via StringReader, passed as Reader, and from thereon core code has no knowledge that IOExceptions aren't expected.. details
  • @Tinctorius -- while I can see a case for suppressing IOExceptions for case where String is passed, this is due to the fact that after initializations, Strings are read via StringReader, passed as Reader, and from thereon core code has no knowledge that IOExceptions aren't expected.. details
  • +1: I like idea that you either have to deal with the exception or "declare it impossible" by wrapping in a RuntimeException.. details
  • +1: I like idea that you either have to deal with the exception or "declare it impossible" by wrapping in a RuntimeException.. details
  • Nope, that was not the problem, check my answer.. details
  • I added jackson-all-1.8.5.jar to my WEB-INF/lib folder, but still same problem :/.. details
  • I assume you are using the default Jackson one that comes with Spring.. details
  • Jackson : avoiding exceptions due to unmodeled fields.. details
  • Jackson : avoiding exceptions due to unmodeled fields.. details
  • I get this exception instead: CODESNIPPET_JAVA7 .. details
  • The input is wrong.. details
  • Note that this exception _only_ happens if I try deserializing the outer type CODETERM3 -- if I pull out the inner serialized value for CODETERM4 , and deserialize that, it works fine.. details
  • Jackson throws this exception when it encounters this: CODESNIPPET_JAVA4 .. details
  • I get this exception instead: CODESNIPPET_JAVA7 .. details
  • +1 Ahh...I see you beat me to the punch.. details
  • +1 Ahh...I see you beat me to the punch.. details
  • Clearly the ordinal CODETERM5 corresponds to CODETERM6 (it's not a Jackson problem), as explained above, ordinals in an enumeration are zero- based.. details
  • Clearly the ordinal CODETERM5 corresponds to CODETERM6 (it's not a Jackson problem), as explained above, ordinals in an enumeration are zero- based.. details
  • {status:1} means Status.Active, but Jackson makes it Status.Inactive :( .. details
  • What am I doing wrong?. details
  • Now, you still have undesired "map" wrapper, which would mess up deserialization.. details
  • A quick & dirty solution that I used before discovering views was just to copy the properties I was interested in, into a Map, and then serialise the map.. details
  • I doubt it using jsonviews.. details
  • the new form (because setDateFormat is marked as deprecated is actually getDeserializationConfig().withDateFormat(...) now.. details
  • the new form (because setDateFormat is marked as deprecated is actually getDeserializationConfig().withDateFormat(...) now.. details
  • setSerializationView() seem to be deprecated so I used mapper.viewWriter(JacksonViews.ItemView.class).writeValue(writer, myItem); instead.. details
  • I find the Jackson JSON Views hard to use, and can't get a good solution for this problem.. details
  • I find the Jackson JSON Views hard to use, and can't get a good solution for this problem.. details
  • The problem is, how to remove object "item" for JSON ?. details
  • The problem is, how to remove object "item" for JSON ?. details
  • I'd like to use Jackson to parse JSON Bing results, but I'm a little confused about how to use it.. details
  • the object is properly created, no exception occurs, the fields "level" and "salary" are correctly populated, but the "details" field (originally a HashMap) is always null.. details
  • the object is properly created, no exception occurs, the fields "level" and "salary" are correctly populated, but the "details" field (originally a HashMap) is always null.. details
  • The code generated, by default, annotates for use with Jackson, but this can be turned off with a switch.. details
  • The problem is with the Jackson implementation, as ObjectMapper._configAndWriteValue calls UtfGenerator.close(), which calls PrintStream.close().. details
  • but that throws the following exception: CODESNIPPET_JAVA5 .. details
  • Can someone tell me what is wrong and a solution?. details
  • However using the Jackson Library gives an error : Exception in thread "main" org.codehaus.jackson.map.JsonMappingException: Can not deserialize instance of java.util.LinkedHashMap out of START_ARRAY token at [Source: java.io.StringReader@a761fe; line: 1, column: 1] Here is the simple code : CODESNIPPET_JAVA3 .. details
  • However using the Jackson Library gives an error : Exception in thread "main" org.codehaus.jackson.map.JsonMappingException: Can not deserialize instance of java.util.LinkedHashMap out of START_ARRAY token at [Source: java.io.StringReader@a761fe; line: 1, column: 1] Here is the simple code : CODESNIPPET_JAVA3 .. details
  • But maybe that's hard to do.. details
  • Reading through it second time it seems more likely you have double-quoted stuff (JSON in JSON): another thing to consider is to get plain JSON, if possible.. details
  • Creator methods are either single-string-argument constructors, or single- string argument static methods: the difference being that only constructors can be auto-detected (this is just a practical short-cut as there can only be one such constructor, but multiple static methods).. details
  • After this executes, the console shows {"id":1}, but does not show "done".. details
  • the Exception does indeed disappear, but the ProtocolContainer that I expected to be there is all "empty", ie all its Properties are in their initial state, and not populated according to the JSON-string.. details
  • This time I am getting a different error, namely that the Jackson deserializer complains that I do not have a "single-String constructor/factory method" in my class ProtocolContainer.. details
  • the Exception does indeed disappear, but the ProtocolContainer that I expected to be there is all "empty", ie all its Properties are in their initial state, and not populated according to the JSON-string.. details
  • The error messages says it all, your ProtocolContainer does not have a default constructor so Jackson is unable to create an instance of it.. details
  • The error messages says it all, your ProtocolContainer does not have a default constructor so Jackson is unable to create an instance of it.. details
  • The exception: org.codehaus.jackson.map.JsonMappingException: No suitable constructor found for type [simple type, class MyPackage.ProtocolContainer]: can not instantiate from JSON object (need to add/enable type information?). details
  • I have a problem deserializing a JSON string using Jackson (but I have no problem serializing an object to JSON).. details
  • I have a problem deserializing a JSON string using Jackson (but I have no problem serializing an object to JSON).. details
  • and the code that executes in ProtocolContainer can be seen below.. details
  • For Jackson to serialize that class, the SomeString field need to either be public (right now it's package level isolation) or you need to define a getter and setter for it.. details
  • For Jackson to serialize that class, the SomeString field need to either be public (right now it's package level isolation) or you need to define a getter and setter for it.. details
  • Can anyone tell my why I get this error?. details
  • I get the an exception when trying to serialize a very simple object using Jackson.. details
  • The error: org.codehaus.jackson.map.JsonMappingException: No serializer found for class MyPackage.TestA and no properties discovered to create BeanSerializer (to avoid exception, disable SerializationConfig.Feature.FAIL_ON_EMPTY_BEANS) ) Below is the simple class and code to serialize.. details
  • I get the an exception when trying to serialize a very simple object using Jackson.. details
  • The error: org.codehaus.jackson.map.JsonMappingException: No serializer found for class MyPackage.TestA and no properties discovered to create BeanSerializer (to avoid exception, disable SerializationConfig.Feature.FAIL_ON_EMPTY_BEANS) ) Below is the simple class and code to serialize.. details
  • I think the issue is one listed under 5.5 on URL_http://wiki.fasterxml.com/JacksonPolymorphicDeserialization [Jackson- polymorphic-deserialization] Wiki page.Basically it's the Java Type Erasure biting you when serializing; and when deserializing type is made available explicitly; and that discrepancy hurts.. details
  • I think the issue is one listed under 5.5 on URL_http://wiki.fasterxml.com/JacksonPolymorphicDeserialization [Jackson- polymorphic-deserialization] Wiki page.Basically it's the Java Type Erasure biting you when serializing; and when deserializing type is made available explicitly; and that discrepancy hurts.. details
  • I've tried 2 different ways to make this work, and both fail... CODESNIPPET_JAVA3 .. details
  • The json is a simple HashMap, but the mapper is complaining when I try and deserialize.. details
  • I've tried 2 different ways to make this work, and both fail... CODESNIPPET_JAVA3 .. details
  • There have been some fixes in this are since 1.9.0; which at least would give better error message.. details
  • or even on a static factory method: CODESNIPPET_JAVA2 .. details
  • This is a little confusing at first but saves a lot of time once you figure it out.. details
  • This is a little confusing at first but saves a lot of time once you figure it out.. details
  • Let me know if anything is unclear.. details
  • While there is a handful of Java-to/from-JSON APIs that provide for easy (basic) binding between JSON and an arbitrary Java data structure, Jackson and Gson are by far the most sophisticated (capable) and feature-rich options.. details
  • Back in July (2011), I posted a multi-part series on my blog comparing using Gson versus Jackson, stepping through features as they were organized in the Gson User Guide, including examples of comparable implementations in Jackson (and of implementations in Gson, where the Gson User Guide was incomplete or broken).. details
  • The current release of Gson (2.0) shows to be about 16 times slower than the current release of Jackson (1.9.2) at serializing and deserializing a 500 byte JSON structure, using very comparable implementation efforts (just one or two lines of code).. details
  • The current release of Gson (2.0) shows to be about 16 times slower than the current release of Jackson (1.9.2) at serializing and deserializing a 500 byte JSON structure, using very comparable implementation efforts (just one or two lines of code).. details
  • (You could make use of DeserializationConfig.Feature.ACCEPT_SINGLE_VALUE_AS_ARRAY to force the input to always bind to a collection, but that's probably not the approach I'd take given how the problem is currently described.). details
  • (You could make use of DeserializationConfig.Feature.ACCEPT_SINGLE_VALUE_AS_ARRAY to force the input to always bind to a collection, but that's probably not the approach I'd take given how the problem is currently described.). details
  • Wasn't clear from Jackson doc.. details
  • didnt know how non-static and static inner classes differed, now I know.. details
  • yes, thats exactly what I did, added static to inner class declarations.. details
  • TypeFactory has methods that do not need static class; createCollectionType and so on.. details
  • EDIT: Adding additional test cases that may clarify the problem After reading some more questions about similar issues, I decided to try modifying my custom serializer to narrow down where the problem is.. details
  • EDIT: Adding additional test cases that may clarify the problem After reading some more questions about similar issues, I decided to try modifying my custom serializer to narrow down where the problem is.. details
  • I'm running into a problem with Jackson where it does not respect the CODETERM1 annotations when I use a custom serializer.. details
  • Changing the custom CODETERM15 method to the following does output type information, but loses the CODETERM16 semantics I need: CODESNIPPET_JAVA3 .. details
  • Unfortunately, while I can vary that behavior in the test code, I need my production code to serialize a CODETERM14 with polymorphic values.. details
  • Preface: The key to use less memory of the result itsef is in the "server side" cursor.. details
  • Preface: The key to use less memory of the result itsef is in the "server side" cursor.. details
  • I think Oracle cursor are server side by default.. details
  • I expect this can yield problems.. details
  • Following are simple examples of using Gson and Jackson to deserialize/serialize JSON (similar to the invalid JSON in the original question) to/from a matching Java data structure.. details
  • If you think it's a bug, then file it on the Jackson JIRA.. details
  • This made the trick.. details
  • Do you know what can be wrong?. details
  • So far there are few things to fail: the code seems to be the right approach and the Jackson files required by Spring are there.. details
  • I use Jackson for several projects and can vouch for its speed and stability.. details
  • I use Jackson for several projects and can vouch for its speed and stability.. details
  • This actually works, as Jackson will try to find limited number of special constructors (single-arg public constructors that that take String, int, long, double or boolean).. details
  • First there is one jar missing in the Jersey requirements documentation, the Jackson XML Compability jar and also the documentation is confusing.. details
  • First there is one jar missing in the Jersey requirements documentation, the Jackson XML Compability jar and also the documentation is confusing.. details
  • your CODETERM3 contains a CODETERM4 ) so I can only give you rough guidance.. details
  • If I use Jackson directly and register its CODETERM5 provider, I get exceptions when attempting to unmarshal from JSON: CODESNIPPET_JAVA2 .. details
  • It isn't very elegant, but jackson can generate URL_http://wiki.fasterxml.com/JacksonJsonSchemaGeneration [json-schema-from-a -java-class] .. details
  • It isn't very elegant, but jackson can generate URL_http://wiki.fasterxml.com/JacksonJsonSchemaGeneration [json-schema-from-a -java-class] .. details
  • I figured out a problem for some reason the rest-client that I was using was making the things worse.. details
  • Jackson should not produce such output; but if it does somehow, that would be a Jackson bug.. details
  • Jackson should not produce such output; but if it does somehow, that would be a Jackson bug.. details
  • Json object field name to use for the property: if empty String (which is the default), will use name of the field that is annotated.. details
  • I want to check if the file contains a spefic array, if it contains the error the I will use jsonserializer.. details
  • I want to check if the file contains a spefic array, if it contains the error the I will use jsonserializer.. details
  • I want to check if the file contains a spefic array, if it contains the error the I will use jsonserializer.. details
  • I want to check if the file contains a spefic array, if it contains the error the I will use jsonserializer.. details
  • What specifically is the problem you discovered?. details
  • Jackson JSON has difficulties with Interfaces.". details
  • What difficulties with interfaces does Jackson have?. details
  • "Discovered the problem.. details
  • I guess I'm a little confused on the best route to take.. details
  • It seems to me that having integers as the attribute name is illegal.. details
  • There is currently no such configuration, but you can override default deserializer with a custom one (see URL_http://wiki.fasterxml.com/JacksonHowToCustomDeserializers [fasterxml-wiki] ) and make that throw an exception?. details
  • There is currently no such configuration, but you can override default deserializer with a custom one (see URL_http://wiki.fasterxml.com/JacksonHowToCustomDeserializers [fasterxml-wiki] ) and make that throw an exception?. details
  • There is currently no such configuration, but you can override default deserializer with a custom one (see URL_http://wiki.fasterxml.com/JacksonHowToCustomDeserializers [fasterxml-wiki] ) and make that throw an exception?. details
  • There is currently no such configuration, but you can override default deserializer with a custom one (see URL_http://wiki.fasterxml.com/JacksonHowToCustomDeserializers [fasterxml-wiki] ) and make that throw an exception?. details
  • Excluding it fixed the problem.. details
  • But when initializing the ObjectMapper object I am getting this error CODESNIPPET_JAVA1 .. details
  • Problem was a different version of jackson in the dependency tree.. details
  • solved it, actually had to place TextView nText (TextView) this.findViewById(R.id.nameText); within the actual method or else all hell would break loose (nullptrexecptions).. details
  • It's the second problem I'm concerning.. details
  • tried that Jackson, it claims to be the setText line, the public void getInfo() line, the oncomplete line, and the new dialog listener line.. details
  • There was a custom constructor defined for the class making it the default constructor.. details
  • It is not a Jackson configuration issue as I doubted.. details
  • It is not a Jackson configuration issue as I doubted.. details
  • Introducing a dummy constructor has made the error to go away.. details
  • The second form is the default.. details
  • I forgot to mention, this mess is just one line with Jackson.. details
  • The problem is that after I serialize this class with Jackson JSON serializer, the fields are insetrted twice in the result payload: one starting with lower letter, one with capital letter: ... {"Caption":"aa","caption":"aa",...} What may be wrong with type definition?. details
  • Worst case scenario, I would rather just ignore the unknown attribute but still parse the rest of the file whose format hasn't changed.. details
  • The interesing part is that there are other similar CODETERM2 s in the input stream before this one and they do not cause any problems.. details
  • The moment I introduce this setter, Jackson executes a different code path and ends up in the block where it tries to put a CODETERM9 (the CODETERM10 ) into an CODETERM11 .. details
  • I also saw that Jackson is trying to force this number into an CODETERM7 , even though earlier in the processing it is detected properly as a CODETERM8 .. details
  • EDIT: I debugged this a little and it looks like this is the first CODETERM6 that Jackson is trying to process, even though it still comes later in the stream.. details
  • Recently (in the last couple hours or so) I started getting this exception stack: CODESNIPPET_JAVA1 .. details
  • I would still prefer to know if the original way is working as intended (if so, what is the idea behind it) or a bug.. details
  • Date parsing problem with Jackson 1.8.5.. details
  • The interesing part is that there are other similar CODETERM2 s in the input stream before this one and they do not cause any problems.. details
  • I would still prefer to know if the original way is working as intended (if so, what is the idea behind it) or a bug.. details
  • It also parses the data in a stream, lowering memory consumption.. details
  • It also parses the data in a stream, lowering memory consumption.. details
  • It also parses the data in a stream, lowering memory consumption.. details
  • It also parses the data in a stream, lowering memory consumption.. details
  • Fixed the abstract Foo problem.. details
  • Doh - sorry, when making the example - I messed up the code trying to make it simpler (should have been setBiz).. details
  • Doh - sorry, when making the example - I messed up the code trying to make it simpler (should have been setBiz).. details
  • From this, it seems relatively intuitive that JsonParsingException is for problems related to trying to parse invalid content; and JsonMappingException for problems at data-binding level.a .. details
  • From this, it seems relatively intuitive that JsonParsingException is for problems related to trying to parse invalid content; and JsonMappingException for problems at data-binding level.a .. details
  • However, you can make Jackson the default with some Spring xml config: URL_http://cxf.547215.n5.nabble.com/Overriding-the-default - Jettison-JSON-Provider-td1223554.html.. details
  • Now that I see the error message is a silly mistake and easy to fix, but without that it wasn't that obvious.. details
  • With the debugger I found out that that exception contained a very descriptive error message: CODESNIPPET_JAVA9 .. details
  • With the debugger I found out that that exception contained a very descriptive error message: CODESNIPPET_JAVA9 .. details
  • Now that I see the error message is a silly mistake and easy to fix, but without that it wasn't that obvious.. details
  • Changing to Jackson would not benefit this issue.. details
  • Changing to Jackson would not benefit this issue.. details
  • Nota bene: my Java is rusty and I've never used Jackson, so consider the above block to be pseudocode.. details
  • These exceptions are used for problems that are not expected to occur unless you're dealing with buggy code or when your VM's host is on fire.. details
  • In any case, you never need to declare CODETERM9 in CODETERM10 , because they're unchecked exceptions.. details
  • you used CODETERM7 to create a JSON parser on a string), you may assume that any CODETERM8 s you receive are bugs, either in your code or in Jackson.. details
  • These exceptions are used for problems that are not expected to occur unless you're dealing with buggy code or when your VM's host is on fire.. details
  • As the documentation of Jackson is lacking so much, you don't really know why any of them are thrown anyway (except for "an unknown error").. details
  • As the documentation of Jackson is lacking so much, you don't really know why any of them are thrown anyway (except for "an unknown error").. details
  • I want to wrap the two aforementioned child classes and throw my own custom exceptions, yet, the base class, CODETERM5 , being checked, requires me to either catch or throw it also.. details
  • My original thought was to not catch it and leave it to the caller/run-time exception mechanism to deal with it... yet, I don't want to have to force the caller to catch or specify.. details
  • It doesn't make sense for me to throw the CODETERM6 up to the calling layer, but, adversely, it's a smell if I hide it.. details
  • I want to wrap the two aforementioned child classes and throw my own custom exceptions, yet, the base class, CODETERM5 , being checked, requires me to either catch or throw it also.. details
  • URL_http://jackson.codehaus.org/ [Jackson's] CODETERM1 member throws three checked exceptions: CODESNIPPET_JAVA1 .. details
  • It doesn't make sense for me to throw the CODETERM6 up to the calling layer, but, adversely, it's a smell if I hide it.. details
  • I want to wrap the two aforementioned child classes and throw my own custom exceptions, yet, the base class, CODETERM5 , being checked, requires me to either catch or throw it also.. details
  • It doesn't make sense for me to throw the CODETERM6 up to the calling layer, but, adversely, it's a smell if I hide it.. details
  • Jackson and that dreaded IOException.. details
  • URL_http://jackson.codehaus.org/ [Jackson's] CODETERM1 member throws three checked exceptions: CODESNIPPET_JAVA1 .. details
  • I want to wrap the two aforementioned child classes and throw my own custom exceptions, yet, the base class, CODETERM5 , being checked, requires me to either catch or throw it also.. details
  • It doesn't make sense for me to throw the CODETERM6 up to the calling layer, but, adversely, it's a smell if I hide it.. details
  • My original thought was to not catch it and leave it to the caller/run-time exception mechanism to deal with it... yet, I don't want to have to force the caller to catch or specify.. details
  • Jackson and that dreaded IOException.. details
  • With int and long difference is resolved based on what JSON has -- JSON objects use POJO setter; JSON numbers int or long.. details
  • Is there a way to make jackson jsonize only fetched lazily loaded objects.. details
  • Is there a way to make jackson jsonize only fetched lazily loaded objects.. details
  • added error log.. details
  • Include the logcat dump?. details
  • FWIW The possible solutions to this specific problem with Gson are almost identical to what's possible with Jackson's Data Binding API.. details
  • How can I tell jackson to ignore a property for which I don't have control over the source code?. details
  • Long story short, one of my entities has a URL_http://www.vividsolutions.com/j ts/javadoc/com/vividsolutions/jts/geom/GeometryCollection.html [GeometryCollection] that throws and exception when you call "getBoundary" (the why of this is another book, for now let's say this is the way it works).. details
  • I just felt this was bad separation of concerns.. details
  • I just felt this was bad separation of concerns.. details
  • The problem is, in this case I need to have control over every row because I have conditional statements on what to write.. details
  • The problem is, in this case I need to have control over every row because I have conditional statements on what to write.. details
  • I'm encoding a complex Map structure with arrays of double values.High precision is not important and output size is, so I'm trying to get the JSON tool (Jackson in this case) to serialize the double values using a provided DecimalFormat.. details
  • The following is my best shot, but this fails as the serializer is not picked by the object mapper to encode the array: CODESNIPPET_JAVA1 .. details
  • I'm encoding a complex Map structure with arrays of double values.High precision is not important and output size is, so I'm trying to get the JSON tool (Jackson in this case) to serialize the double values using a provided DecimalFormat.. details
  • You would just annotate the name field of User as being part of a view, and specify a different view in your serialisation request (the un-annotated fields would be included by default) For example:Define the views: CODESNIPPET_JAVA1 .. details
  • And serialise requesting a view which doesn't contain the field you want to hide (non-annotated fields are serialised by default): CODESNIPPET_JAVA3 .. details
  • You would just annotate the name field of User as being part of a view, and specify a different view in your serialisation request (the un-annotated fields would be included by default) For example:Define the views: CODESNIPPET_JAVA1 .. details
  • And serialise requesting a view which doesn't contain the field you want to hide (non-annotated fields are serialised by default): CODESNIPPET_JAVA3 .. details
  • But I get this error: CODESNIPPET_JAVA6 .. details
  • But either way I do not think that complex objects are problematic: Jackson is designed to handle complicated object structures and types (including generic types) just fine.. details
  • But either way I do not think that complex objects are problematic: Jackson is designed to handle complicated object structures and types (including generic types) just fine.. details
  • What are bad use cases for Jackson/JSON?. details
  • I'm still learning about this technology, and I don't want to fall into the trap of treating everything like a nail just because I happen to have a fancy new hammer to play with.. details
  • What would be characteristics or smells that would indicate it is a bad idea to use Jackson/JSON for a particular task or set of tasks?. details
  • I am sorry I was not clear, see my edit.. details
  • update 2** When I remove CODETERM7 and CODETERM8 then no JSON is returnesd, only CODETERM9 error and no exception is thrown except of what I found in debug output.. details
  • update 2** When I remove CODETERM7 and CODETERM8 then no JSON is returnesd, only CODETERM9 error and no exception is thrown except of what I found in debug output.. details
  • Using a BufferedReader and iterating line by line is a really bad idea because your code might then be sensitive to changes in the formatting of the json received from the Javascript.. details
  • Using a BufferedReader and iterating line by line is a really bad idea because your code might then be sensitive to changes in the formatting of the json received from the Javascript.. details
  • I want to do something this, but google hasn't turned up the correct boilerplate.. details
  • I want to do something this, but google hasn't turned up the correct boilerplate.. details
  • Correct, this used to be something you can not do with current Jackson versions (1.8 and earlier).But is it absolutely necessary for inner class to be non-static?. details
  • what am I doing wrong?. details
  • the 3rd line of the main method (where I try to convert json to Person object), throws this exception: CODESNIPPET_JAVA3 .. details
  • jackson IOException: Can not deserialize Class com.mycompany.models.Person$Address (of type non-static member class) as a Bean.. details
  • the 3rd line of the main method (where I try to convert json to Person object), throws this exception: CODESNIPPET_JAVA3 .. details
  • Example JSON (note that the string has trailing spaces): CODESNIPPET_JAVA1 .. details
  • Now the problem is that when I call getMyObject() which is inside the request object jackson returns the nested custom object as a LinkedHashMap.. details
  • I rephrased the question better here: URL_http://stackoverflow.com/questions/5930894/can-jackson-be-used-with-spring - mvc-3-0-to-also-bind-the-requestbody-to-a-java-be (I'll close this one as it seems to be too long and unclear).. details
  • I already have serialization OUT (ResponseBody, my problem is serialization IN (RequestBody).. details
  • Documentation is lacking, but basically you need to implement CODETERM1 (see URL_http://jackson.codehaus .org/1.8.2/javadoc/org/codehaus/jackson/io/CharacterEscape [ URL_http://jackson.cod ehaus.org/1.8.2/javadoc/org/codehaus/jackson/io/CharacterEscape] ), register with JsonFactory (or directly JsonGenerator), and then escaping will be done according to whatever rules you want.. details
  • Jackson Json parser does not parse strictly.. details
  • I've looked but can't find a variable setting to increase the "strictness" of the parsing.. details
  • Escape forward slash in Jackson.. details
  • Escaping forward slash (/) would solve the problem and it is alowed by JSON's spec.. details
  • Escaping forward slash (/) would solve the problem and it is alowed by JSON's spec.. details
  • By default, Jackson skips all transient fields during serialization.. details
  • It's not clear how Jackson is being used, as no code or description was provided in the original question.. details
  • If there is a getter for the transient field, however, then by default Jackson includes it during serialization.. details
  • I don't know what I'm doing wrong, I think the problem is that I don't know how to tell to use the CODETERM2 to render a request.. details
  • But getting following error: CODESNIPPET_JAVA2 .. details
  • Or is the real JSON actually valid, and just the examples in the question are invalid?. details
  • Specifically, about the invalid JSON input?. details
  • Is it possible that the message about the syntax error is just that: a message about a syntax error?. details
  • EDIT2: After poking about in the source files, it might be the case that the JSON is constructed manually (sorry jackson).. details
  • I'm trying to decode JSON output of a Java program (jackson) and having some issues.The cause of the problem is the following snippet: CODESNIPPET_JAVA1 .. details
  • I'm trying to decode JSON output of a Java program (jackson) and having some issues.The cause of the problem is the following snippet: CODESNIPPET_JAVA1 .. details
  • There's some other problem in the system you're using.. details
  • There's some other problem in the system you're using.. details
  • Disable URL_http://jackson.codehaus.org/1.8.2/javadoc/org/codehaus/jackson/map /DeserializationConfig.Feature.html#USE_GETTERS_AS_SETTERS [CODETERM1] .. details
  • Use static import to make this line shorter.. details
  • Use static import to make this line shorter.. details
  • Disable URL_http://jackson.codehaus.org/1.8.2/javadoc/org/codehaus/jackson/map /DeserializationConfig.Feature.html#USE_GETTERS_AS_SETTERS [CODETERM1] .. details
  • I think order is one of the problems here but not one I want to solve.. details
  • Following is a demo of Jackson in action to solve the problem originally presented.. details
  • Following is a demo of Jackson in action to solve the problem originally presented.. details
  • I am trying to setup Jackson JSON custom deserializer to convert JSON values into Long object.. details
  • However, for the custom deserializer to kick in, I have to always annotate each timee.g.. details
  • Jackson by default uses default constructor of a bean to create the instance.. details
  • Also, if Jackson has gone through the trouble of creating the map, can I peek into the request type and hand the remainder of the map to Jackson to construct the "wrapped" object - instead of using BeanUtils?. details
  • Actually the problem is that MappingJacksonJsonView has a map So that's why it returns it that way CODETERM1 But If I configured it that way CODESNIPPET_JAVA1 .. details
  • Actually the problem is that MappingJacksonJsonView has a map So that's why it returns it that way CODETERM1 But If I configured it that way CODESNIPPET_JAVA1 .. details
  • Extract required fields from Library, and use CODETERM2 annotation for class to ignore the rest of json object (I suppose you are using the default json jackson marshaller, right?). details
  • For example, instead of changing a property from JSON Object to JSON Array (or vice versa), add a new property with new type, deprecate old one.. details
  • For example, instead of changing a property from JSON Object to JSON Array (or vice versa), add a new property with new type, deprecate old one.. details
  • This causes Jackson to throw an exception and the file can't be parsed even though the format is 90% the same.. details
  • I was thinking about using URL_http://goessner.net/articles/jsont/ [JSONT] to upgrade the file as well as writing my own Jackson stream parser which is more lenient than the full binding parser, just in case something goes wrong with the JSONT upgrade.. details
  • This causes Jackson to throw an exception and the file can't be parsed even though the format is 90% the same.. details
  • Other than performance, there's URL_http://www.cowtowncoder.com/blog/archives/2010/11/entry_434.html [this- blog-post] ("7 Jackson killer features") that outlines what Jackson has to offer on its own (not considering integration with frameworks) -- other libraries have their own strengths, and for URL_http://flexjson.sourceforge.net/ [flex-json] I understand its output side (writing JSON) is quite flexible and powerful.. details
  • Other than performance, there's URL_http://www.cowtowncoder.com/blog/archives/2010/11/entry_434.html [this- blog-post] ("7 Jackson killer features") that outlines what Jackson has to offer on its own (not considering integration with frameworks) -- other libraries have their own strengths, and for URL_http://flexjson.sourceforge.net/ [flex-json] I understand its output side (writing JSON) is quite flexible and powerful.. details
  • This would not occur with Jackson annotations; and ideally not if you combine Jackson and JAXB annotations (I thought Jersey enabled both).If Jackson annotation processing is also enabled, adding @JsonProperty next to 'getBiz' should also do the trick.. details
  • This would not occur with Jackson annotations; and ideally not if you combine Jackson and JAXB annotations (I thought Jersey enabled both).If Jackson annotation processing is also enabled, adding @JsonProperty next to 'getBiz' should also do the trick.. details
  • jackson JsonParseException: Invalid UTF-8 middle byte.. details
  • This error happens when the jackson engine tries to parse the json response from the server.I am using Spring Android to serialise/deserialise objects to and from json.This problem seems to be related to the default encoding UTF-8.. details
  • This error happens when the jackson engine tries to parse the json response from the server.I am using Spring Android to serialise/deserialise objects to and from json.This problem seems to be related to the default encoding UTF-8.. details
  • error log: CODESNIPPET_JAVA2 .. details
  • Or am I approaching this problem the wrong way?. details
  • This seems to work, but is a little uglier.. details
  • Or am I approaching this problem the wrong way?. details
  • I get this exception: CODESNIPPET_JAVA2 .. details
  • I get this exception: CODESNIPPET_JAVA2 .. details
  • Translations with a URL_http://jackson.codehaus.org/1.8 .1/javadoc/org/codehaus/jackson/map/PropertyNamingStrategy.html [CODETERM19] work in unfortunately much the same way: they translate from the Java field name to the JSON element name.. details
  • Translations with a URL_http://jackson.codehaus.org/1.8 .1/javadoc/org/codehaus/jackson/map/PropertyNamingStrategy.html [CODETERM19] work in unfortunately much the same way: they translate from the Java field name to the JSON element name.. details
  • None of the available CODETERM20 alterations would customize a CODETERM21 to force JSON element names to all upper or all lower case.. details
  • With URL_http://jackson.codehaus.org [Jackson] , the situation appears unfortunately similar.. details
  • With URL_http://jackson.codehaus.org [Jackson] , the situation appears unfortunately similar.. details
  • None of the available CODETERM20 alterations would customize a CODETERM21 to force JSON element names to all upper or all lower case.. details
  • Instead of using org.json's simplistic lib, you could upgrade to a better JSON library (such as URL_http://jackson.codehaus.org [Jackson] ), bind data as regular Maps (Lists, Numbers etc), and then most templating engines could access things as expected.. details
  • Instead of using org.json's simplistic lib, you could upgrade to a better JSON library (such as URL_http://jackson.codehaus.org [Jackson] ), bind data as regular Maps (Lists, Numbers etc), and then most templating engines could access things as expected.. details
  • Jackson ( URL_http://wiki.fasterxml.com/JacksonHome ) and Flex-JSON ( URL_http://flexjson.sourceforge.net /) for example.. details
  • Jackson ( URL_http://wiki.fasterxml.com/JacksonHome ) and Flex-JSON ( URL_http://flexjson.sourceforge.net /) for example.. details
  • The answer must not** use global/static variables--I want to configure the Configuration object on a per- URL_http://jackson.codehaus.org/1.8.1/javadoc/o rg/codehaus/jackson/map/ObjectMapper.html [CODETERM1] basis.. details
  • The answer must not** use global/static variables--I want to configure the Configuration object on a per- URL_http://jackson.codehaus.org/1.8.1/javadoc/o rg/codehaus/jackson/map/ObjectMapper.html [CODETERM1] basis.. details
  • don't duplicate BeanDeserializer._deserializeUsingPropertyBased) Work with URL_http://wiki.fasterxml.com/JacksonMixInAnnotations [annotation-mix-ins] I've explored setting up custom URL_http://jackson.codehaus.org/1.8.1/javadoc/ org/codehaus/jackson/map/deser/CreatorContainer.html [CODETERM2] or URL_http:/ /jackson.codehaus.org/1.8.1/javadoc/org/codehaus/jackson/map/DeserializerProvi der.html [CODETERM3] , but I haven't come up with a method that meets my requirements yet.. details
  • don't duplicate BeanDeserializer._deserializeUsingPropertyBased) Work with URL_http://wiki.fasterxml.com/JacksonMixInAnnotations [annotation-mix-ins] I've explored setting up custom URL_http://jackson.codehaus.org/1.8.1/javadoc/ org/codehaus/jackson/map/deser/CreatorContainer.html [CODETERM2] or URL_http:/ /jackson.codehaus.org/1.8.1/javadoc/org/codehaus/jackson/map/DeserializerProvi der.html [CODETERM3] , but I haven't come up with a method that meets my requirements yet.. details
  • don't duplicate BeanDeserializer._deserializeUsingPropertyBased) Work with URL_http://wiki.fasterxml.com/JacksonMixInAnnotations [annotation-mix-ins] I've explored setting up custom URL_http://jackson.codehaus.org/1.8.1/javadoc/ org/codehaus/jackson/map/deser/CreatorContainer.html [CODETERM2] or URL_http:/ /jackson.codehaus.org/1.8.1/javadoc/org/codehaus/jackson/map/DeserializerProvi der.html [CODETERM3] , but I haven't come up with a method that meets my requirements yet.. details
  • On the other hand, a URL_http://jackson.codehaus.org [Jackson] -based solution isn't so bad.. details
  • On the other hand, a URL_http://jackson.codehaus.org [Jackson] -based solution isn't so bad.. details
  • If you are using Spring 3.0, an easy way to avoid the org.springframework.web.client.HttpClientErrorException 415 Unsupported Media Type** exception, is to include the jackson jar files in your classpath, and use CODETERM1 config element.. details
  • What am I doing wrong?. details
  • When trying to consume the JSON at the client end, I get this error: CODESNIPPET_JAVA4 .. details
  • If I debug the client end, Jackson seems to be returning a List<LinkedHashMap>**, which explains the error, since I'm expecting a List<CheckStatusDetail>**.. details
  • This error occurs the first time I try to access the "data" field after deserialising it.. details
  • When using Apache Jersey with Jackson for JSON serialisation (on both server and client), I'm hitting a problem when deserialising a generic List.. details
  • Jackson is a little faster so its up to you what you want.. details
  • Jackson is a little faster so its up to you what you want.. details
  • it's not very clear from the code.. details
  • Ok, so I've been looking at this for a little while now and am no further on.. details
  • Well, I ended up switching to extending from FromStringDeserializer and that did the trick... but I'm also deploying to GAE and seemed to have had the same trouble with adding a custom serializer until I did a clean/rebuild on my project... probably had nothing to do with Jackson after all.. details
  • The problem is with your use of System.out, not with Jackson.. details
  • The problem is with your use of System.out, not with Jackson.. details
  • Your question is confusing; please elaborate, with an example.. details
  • I'm using Jackson to write the JSON, but it seem to block my TimerTask.. details
  • Writing JSON using Jackson blocks my TimerTask.. details
  • Here is my stack dump for the Timer thread: CODESNIPPET_JAVA2 .. details
  • If I don't write JSON, the TimerTask is run every 5th second, but when I try to write JSON it's blocked and only run once.. details
  • When Jackson serializes into JSON it provides the type information which I don't want to expose.. details
  • In other words, Jackson has deserialized your input string into an arbitrary Java object.. details
  • To customize, you can either define custom serializer (and possible deserializer); or just convert Class to String yourself and avoid any Jackson work.. details
  • Jackson JSON has difficulties with Interfaces.. details
  • One thing that Jackson currently misses is support for builder-style objects; there is a feature request to add support (and plan is to add support in future once developers have time).. details
  • By default Jackson's deserializer uses default constructor to crete beans.. details
  • I am sure I can go to a lower level and use a streaming API or a node based API, but trying to avoid that complexity if I can.. details
  • If all you want to do is just validation, you could create a Map subclass, make it throw exception on duplicate.. details
  • If all you want to do is just validation, you could create a Map subclass, make it throw exception on duplicate.. details
  • I didn't find any restrictions about it in URL_http://www.ietf.org/rfc/rfc4627.txt [specification] .. details
  • JSON duplicated properties validation via Jackson.. details
  • You might be able to figure out what is adding that extra "country" property (and wrapper object): Jackson does not do that by default (although there is setting to get it added, in 1.7), so it is probably some other framework.. details
  • Yes, JSON requires double-quotes for property names (although some parser, including Jackson, allow non-standard modes which can loosen restrictions).. details
  • Jackson JSON, REST Data Binding & HashMaps problem.. details
  • Exception: CODESNIPPET_JAVA3 .. details
  • ... but for jackson I will get an error with the same input json: CODESNIPPET_JAVA2 .. details
  • Strings do not need to be quoted at all if they do not begin with a quote or single quote, and if they do not contain leading or trailing spaces, and if they do not contain any of these characters: { } [ ] / \ : , ; and if they do not look like numbers and if they are not the reserved words true, false, or null.. details
  • Spring REST MappingJacksonHttpMessageConverter produces invalid JSON.. details
  • That alone solves the deserialization problem.. details
  • The harder part for me was the correct serialization of the keys.. details
  • I have a CODETERM1 as a field of a class C. When I try to deserialize C with Jackson, an Exception is thrown because it can't find a Deserializer for Map's key A.. details
  • This is exactly my problem EDIT changed extended class from StdDeserializer to StdKeyDeserializer as I read URL_http://jackson.codehaus.org/1.7.0/javadoc/org/codehaus/jackson/map/DeserializerProvider.html [here] in method CODETERM2 EDIT After solving this issue I got URL_http://stackoverflow.com/q/5614654/288247 [this-one] that is related.. details
  • I have a CODETERM1 as a field of a class C. When I try to deserialize C with Jackson, an Exception is thrown because it can't find a Deserializer for Map's key A.. details
  • This is exactly my problem EDIT changed extended class from StdDeserializer to StdKeyDeserializer as I read URL_http://jackson.codehaus.org/1.7.0/javadoc/org/codehaus/jackson/map/DeserializerProvider.html [here] in method CODETERM2 EDIT After solving this issue I got URL_http://stackoverflow.com/q/5614654/288247 [this-one] that is related.. details
  • My problem is that I can't find an example on how to use the parser and the context of the method "deserialize" that I have to implement.. details
  • This is exactly my problem EDIT changed extended class from StdDeserializer to StdKeyDeserializer as I read URL_http://jackson.codehaus.org/1.7.0/javadoc/org/codehaus/jackson/map/DeserializerProvider.html [here] in method CODETERM2 EDIT After solving this issue I got URL_http://stackoverflow.com/q/5614654/288247 [this-one] that is related.. details
  • This is exactly my problem EDIT changed extended class from StdDeserializer to StdKeyDeserializer as I read URL_http://jackson.codehaus.org/1.7.0/javadoc/org/codehaus/jackson/map/DeserializerProvider.html [here] in method CODETERM2 EDIT After solving this issue I got URL_http://stackoverflow.com/q/5614654/288247 [this-one] that is related.. details
  • So the following code snippet should solve your problem, and the result is written to the CODETERM1 file.. details
  • The format is imposed by a third party API so I have no control over it.. details
  • The format is imposed by a third party API so I have no control over it.. details
  • I know it's possible in Jackson to embed class information inside JSON, but I don't want to complicate the JSON format I use.. details
  • There are other benchmarks too (which I need to encourage the original author to publish) that this low-level API currently beats other libraries including Jackson.. details
  • I have used Jackson a lot, and it blows the competition away.. details
  • g.writeStartObject() in person.saveToFileRaw throws an exception saying that it expects a value.. details
  • I am indeed using the MappingJacksonJsonView and I simply assumed that Jackson was the offending player here.. details
  • The problem is that when I serialize the list, Jackson adds a wrapper around it.. details
  • It sounds like your serializing the wrong object then.. details
  • Jackson annoyingly adds the wrapper.. details
  • That got me one step further, but now I'm getting a different error.. details
  • But a lot has happened since then; alas, given this history, most tutorials start with jettison (or xstream+jettison) approach and only then present Jackson approach.. details
  • I've tried out Jackson but the problem is that its a major rewrite for us since we're so dependent on our JAXB annotations.. details
  • I've tried out Jackson but the problem is that its a major rewrite for us since we're so dependent on our JAXB annotations.. details
  • As of this writing, there are these 20: URL_http://www.JSON.org/java/index.html [org.json] URL_https://github.com/upictec/org.json.me/ [org.json.me] URL_http://jackson.codehaus.org/ [Jackson-JSON-Processor] URL_http://json-lib.sourceforge.net/ [Json-lib] URL_http://developer.berlios.de/projects/jsontools/ [JSON-Tools] URL_http://code.google.com/p/json-simple/ [json-simple] URL_http://www.stringtree.org/stringtree-json.html [Stringtree] URL_http://sojo.sourceforge.net/ [SOJO] URL_http://www.restlet.org/ [Restlet] URL_http://jettison.codehaus.org/ [Jettison] URL_http://json-taglib.sourceforge.net/ [json-taglib] URL_http://xstream.codehaus.org/ [XStream] URL_http://code.google.com/p/jsonmarshaller/ [JsonMarshaller] URL_http://flexjson.sourceforge.net/ [Flexjson] URL_http://sourceforge.net/projects/jontools/ [JON-tools] URL_http://code.google.com/p/google-gson/ [google-gson] URL_http://argo.sourceforge.net/ [Argo] URL_http://pivot.apache.org/ [Pivot] URL_http://jwm.slavitica.net/p/projects/jsonij [jsonij] URL_http://sourceforge.net/projects/fastjson/ [fastjson] ...but of course the list can change.. details
  • Select the code block and click the icon with the curly braces (or just indent with four spaces).. details
  • But I think JSON you are getting is bad -- why would you return an object, or array, intead of just array of size 1?. details
  • I am currently using jackson, any solution for this problem?. details
  • I am currently using jackson, any solution for this problem?. details
  • My votes are for URL_http://dom4j.sourceforge.net/ [dom4j] and URL_http://jackson.codehaus.org/Tutorial [jackson] - if you give your question more context we might be able to help more.. details
  • My votes are for URL_http://dom4j.sourceforge.net/ [dom4j] and URL_http://jackson.codehaus.org/Tutorial [jackson] - if you give your question more context we might be able to help more.. details
  • I have this specific problem with JSON deserialization.. details
  • I have this specific problem with JSON deserialization.. details
  • The reason you're getting that exception is because you don't have a URL_http://jackson.codehaus.org/javadoc /jax-rs/1.0/javax/ws/rs/ext/Providers.html [Provider] registered, or more specifically a URL_http://jackson.codehaus.org/javadoc/jax- rs/1.0/javax/ws/rs/ext/MessageBodyWriter.html [MessageBodyWriter] .. details
  • The reason you're getting that exception is because you don't have a URL_http://jackson.codehaus.org/javadoc /jax-rs/1.0/javax/ws/rs/ext/Providers.html [Provider] registered, or more specifically a URL_http://jackson.codehaus.org/javadoc/jax- rs/1.0/javax/ws/rs/ext/MessageBodyWriter.html [MessageBodyWriter] .. details
  • But when i am trying to deserialize this its giving me following error CODESNIPPET_JAVA3 .. details
  • But when i am trying to deserialize this its giving me following error CODESNIPPET_JAVA3 .. details
  • And the details of the problem are here: URL_http://jackson - users.ning.com/forum/topics/how-to-use-a-property- of?commentId=5286555%3AComment%3A2679.. details
  • And the details of the problem are here: URL_http://jackson - users.ning.com/forum/topics/how-to-use-a-property- of?commentId=5286555%3AComment%3A2679.. details
  • Unfortunately I nevertheless run into this problem: CODESNIPPET_JAVA2 .. details
  • Unfortunately I nevertheless run into this problem: CODESNIPPET_JAVA2 .. details
  • Java and json jackson problem.. details
  • But it return the following error: CODESNIPPET_JAVA2 .. details
  • What i'm doing wrong?. details
  • Java and json jackson problem.. details
  • At low level, what is needed to make sure that ObjectMapper does NOT use JAXBAnnotationIntrospector, but only default JacksonAnnotationIntrospector.. details
  • See the jackson website for more info): CODESNIPPET_JAVA1 .. details
  • So, how do i approach this problem?. details
  • As far as I can see it is hard to extend.. details
  • Or, perhaps this is totally wrong and I need to approach it from a totally different angle?. details
  • So, how do i approach this problem?. details
  • (i already have problems instantiating the StdSerializerProvider myself).. details
  • Note that, I have to read it in as an CODETERM5 (due to other program constraints).. details
  • Yeah, it is sometimes a pity when devs are too reluctant -- org.json package specifically is so primitive that using a proper JSON library (Gson, Jackson, json-lib) would simplify life a lot for most cases.. details
  • Yeah, it is sometimes a pity when devs are too reluctant -- org.json package specifically is so primitive that using a proper JSON library (Gson, Jackson, json-lib) would simplify life a lot for most cases.. details
  • The problem is that Address is defined as: CODESNIPPET_JAVA2 .. details
  • Deserializing the first argument is easy.. details
  • It might actually make more sense to just send the timestamps unformatted (I think the default is to write it as the number of milliseconds since the epoch) and ensure that the client code formats it appropriately before displaying to the user.. details
  • It might actually make more sense to just send the timestamps unformatted (I think the default is to write it as the number of milliseconds since the epoch) and ensure that the client code formats it appropriately before displaying to the user.. details
  • But I want to format the Dates as "yyyy-MM-dd" when allDay is true and "yyyy- MM-dd HH:mm" when allDay is false.. details
  • Jackson JSON processor problems.. details
  • I have been scratching my head over this for hours now : Jsckson deserializes CODETERM1 but bombs on CODETERM2 below : CODETERM3 and CODETERM4 are both subclasses of CODETERM5 , and thus has a setter CODETERM6 .Note that the uppercase CODETERM7 in CODETERM8 is intentional, that is how my JSON looks.Deserializing CODETERM9 complains about Unrecognized field name CODETERM10 , for CODETERM11 it is OK.. details
  • Wrapper should be trivial: just create simple POJO like:public class Wrapper { List bills;}and pass 'Wrapper.class' as type for readValue() method/.. details
  • I found this behavior depends on the JAX-RS implementation and switching to Codehaus' Jackson JAX-RS implementation solved the problem for me.. details
  • "I'm using Jackson Json on an android app, which is incredibly fast, and come a very long way since this question was asked/answered.. details
  • I believe the problem is related to Javascript sintax and not to Jackson nor JSON..