If I have to serialize an object that I can not annotate and that contains parent-child relationship, such as a *DefaultMutableTreeNode*, I can avoid the infinite recursion/stack overflow problem by supplying an *ObjectIdGenerator *from the *findObjectIdInfo*() method in a subclass of the *JacksonAnnotationIntrospector. *The ID value is in the resulting JSON object.
There's an example here: http://stackoverflow.com/questions/27316485/using-jsonidentityinfo-without-annotations (In addition, with the *DefaultMutableTreeNode *class I have to supply a custom *BeanPropertyWriter *to handle exceptions thrown when serializing objects like this. See: http://stackoverflow.com/questions/35359430/how-to-make-jackson-ignore-properties-if-the-getters-throw-exceptions/35416682) I have 3 constraints I'm trying to satisfy: 1. I can not annotate objects in various dependent libraries. 2. I can not enumerate ahead-of-time all of the possible objects that have parent-child relationships 3. I do not want the virtual ID value from an ObjectIdGenerator in the serialized JSON object, although I still need a way to keep track of them. To satisfy 1 and 2 I was thinking of using an ObjectIdGenerator for all objects, regardless of whether they contain parent-child relationships or whether I had access to the source files. This would simplify development, but are there performance penalties for doing this? I'm not sure how to proceed with #3. What objects do I need to sub-class in order to get this to work? It looks like the actual output is done by the *WritableObjectId *object, which is returned from the *DefaultSerializerProvider.findObjectId()* method. But the *WritableObjectId *is declared final so I can't override its *writeAsField()* method. Is there another way to do this? Thanks for your help. -- This message and any attachment are confidential and may be privileged or otherwise protected from disclosure. If you are not the intended recipient, you must not copy this message or attachment or disclose the contents to any other person. If you have received this transmission in error, please notify the sender immediately and delete the message and any attachment from your system. Merck KGaA, Darmstadt, Germany and any of its subsidiaries do not accept liability for any omissions or errors in this message which may arise as a result of E-Mail-transmission or for damages resulting from any unauthorized changes of the content of this message and any attachment thereto. Merck KGaA, Darmstadt, Germany and any of its subsidiaries do not guarantee that this message is free of viruses and does not accept liability for any damages caused by any virus transmitted therewith. Click http://www.emdgroup.com/disclaimer to access the German, French, Spanish and Portuguese versions of this disclaimer. -- You received this message because you are subscribed to the Google Groups "jackson-user" group. To unsubscribe from this group and stop receiving emails from it, send an email to jackson-user+unsubscr...@googlegroups.com. To post to this group, send email to jackson-user@googlegroups.com. For more options, visit https://groups.google.com/d/optout.
