StackOverflow2013

Note that there are some explanatory texts on larger screens.

plurals

PO
primarykey
Id
13120337
data
AcceptedAnswerId
0
AnswerCount
0
ClosedDate
CommentCount
1
CommunityOwnedDate
CreationDate
2012-10-29T11:00:33.267
FavoriteCount
0
LastActivityDate
2012-10-29T11:00:33.267
LastEditDate
LastEditorUserId
0
OwnerUserId
840441
ParentId
13119529
PostTypeId
2
Score
1
ViewCount
0
LastEditorDisplayName
text
Body
There is a logic problem in your code. You want to loop until you reach the end of the object but break your loop with return b (if block). This means that you will not read the object stream until its end. Try something like this (didn't try it but should work). <pre><code>public class MyReferenceObjectCodeDeserializer extends JsonDeserializer<MyReferenceObjectBean> { @Override public ColumnReferenceBean deserialize(JsonParser jp, DeserializationContext ctxt) throws IOException, JsonProcessingException { MyReferenceObjectBean b = null; while (jp.nextToken() != JsonToken.END_OBJECT) { String fieldname = jp.getCurrentName(); jp.nextToken(); if ("code".equalsIgnoreCase(fieldname)) { b = MyReferenceObjectServiceImpl.retrieveByCode(jp.getText()); logger.info("returning " +b.toString()); } } if (b==null) logger.info("returning null"); return b; } } </code></pre> You can also have a look at Genson <a href="http://code.google.com/p/genson/" rel="nofollow">http://code.google.com/p/genson/</a> if you can change from jackson. In addition of some other features it is supposed to be easier to use. Here is how you can solve your problem with genson (for this example it is quite similar to jackson): <pre><code>public class MyReferenceObjectCodeDeserializer implements Deserializer<MyReferenceObjectBean> { public MyReferenceObjectBeandeserialize(ObjectReader reader, Context ctx) throws TransformationException, IOException { MyReferenceObjectBean b = null; reader.beginObject(); while (reader.hasNext()) { reader.next(); if ("code".equalsIgnoreCase(reader.name())) b = MyReferenceObjectServiceImpl.retrieveByCode(reader.valueAsString()); } reader.endObject(); return b; } } // register it Genson genson = new Genson.Builder().withDeserializers(new MyReferenceObjectCodeDeserializer()).create(); MyClass myClass = genson.deserialize(json, MyClass.class); </code></pre>
Tags
Title
singulars
PostAcceptedAnswerId
1. This table or related slice is empty.
PostParentId
1. POJackson custom deserializers creating empty pojo when reading list
 singulars
 PostTypePostTypeId
 PTQuestion
PostTypePostTypeId
1. PTAnswer
UserLastEditorUserId
1. This table or related slice is empty.
UserOwnerUserId
1. USeugen
plurals
PostLinksPostIdRelatedPostId
1. This table or related slice is empty.
PostLinksRelatedPostIdPostId
1. This table or related slice is empty.
PostsAcceptedAnswerId
1. POJackson custom deserializers creating empty pojo when reading list
 singulars
 PostTypePostTypeId
 PTQuestion
PostsParentIdCreationDate
1. This table or related slice is empty.
VotesPostIdCreationDate
1. VO
 singulars
 PostPostId
 PO
 UserUserId
 This table or related slice is empty.
 VoteTypeVoteTypeId
 VTAcceptedByOriginator
2. VO
 singulars
 PostPostId
 PO
 UserUserId
 This table or related slice is empty.
 VoteTypeVoteTypeId
 VTUpMod
CommentsPostId
1. COThank you sir! I will definitely check out genson for my next project. Greatly appreciated!
 singulars
 PostPostId
 PO
 UserUserId
 USmosgjig

Querying!

Guidance

A row detail

Detail views are divided into sections. All the information in the data section comes from columns in the selected row. The other sections display data from other, related rows.

Related data can be related in a to-one or a to-many fashion. Captions of data related in a to-many fashion link to a list view showing a filtered view of the table.

Try moving around until you find a non-empty to-many entry and click on the label to get to one. You can move back to the root by clicking on the database name in the header.