Is there a JSON library that can serialize Proxy objects?
- by gmoore
Using ActiveObjects as my ORM and Gson as my JSON processor.
Ran into a problem going toJson from
persisted objects. The problem is that my persisted class is actually
an Interface and AO is proxying that object under the hood. Here's
some sample code:
Venue venue = manager.get(Venue.class, id);
gson.toJson(venue);
Comes up with this exception:
java.lang.UnsupportedOperationException: Expecting parameterized type,
got interface java.lang.reflect.InvocationHandler.
Are you missing the use of TypeToken idiom?
See http://sites.google.com/site/gson/gson-user-guide#TOC-Serializing-and...
Because venue.getClass().getName() gives:
$Proxy228
I've tried a few solutions in various combinations:
gsonBuilder.registerTypeAdapter(Venue.class, newVenueSerializer());
Type listType = new TypeToken<Venue>() {}.getType();
Nothing has worked so far and I'm using a wonky field-by-field workaround. Any suggestions? I'm not married to Gson, so if there's an alternative library that can do this I'd be happy to use it.
