Support for Self Referential Classes about protostuff-googlecode-exported

[GoogleCodeExporter]

I can confirm this issue. I also have an object model that has some cycles, 
mainly referencing parent relations. I was able to overcome the issue with 
generating the RuntimeSchema (see below) but then I ran into issues when 
serializing the data, since the recurring objects have not been detected as 
references but have been serialized again and again. Is the lack of support for 
cyclic object models a known limitation? Is it planned to support such 
references? That would be great.

Regarding the runtime schema generation, here is what I did: I added a 
getSchemaPlaceholder method to RuntimeSchema, which mainly duplicates the code 
of getSchema, but returns directly the HasSchema<T> object. This object is then 
used in RuntimeFieldObject's FieldFactories for MESSAGE and POJO, so that the 
child schema is not fetched during creation of the parent schema. Thus the 
creation is deferred and the stackoverflow does not occur. The drawback is that 
the validation is also deferred and happens then during the serialization.

Original comment by [email protected] on 19 Jan 2011 at 3:04

[GoogleCodeExporter]

Nice timing.  I've been working on this the past few days.
This feature is now available on trunk.
Let me know if that works for you.
Take a look at http://code.google.com/p/protostuff/wiki/SerializingObjectGraphs

@tvanles Yep that's the route to go (w/c I took) to support cyclic 
dependencies.  

Thanks

Original comment by [email protected] on 19 Jan 2011 at 5:08

• Changed state: Fixed

[GoogleCodeExporter]

I'll make a release soon.  Would be good if you can verify.
Next on the roadmap (for next release) would be support for java.util.Map

Original comment by [email protected] on 19 Jan 2011 at 5:17