Here's a question.

I'm wanting to make fairly extensive use of CGLIB in my application, and I'm aware that Hibernate uses it.

Can anyone tell be if there will be problems enhancing an object that has already been enhanced by Hibernate? What about the reverse?

Thanks,
james

Hibernate doesn't "enhance" objects. It uses CGLIB to create *proxies*.

Thanks for the clarification...

Any idea how I can use CGLIB's enhancement features along with Hibernate?

I'd like the instance of the object returned by Hibernate load() to be enhanced, and I'd like Hibernate be able to save() enhanced objects.

-- or am I going to be forced to use proxies?

james

...let me clarify that a bit:

If I have a class "org.foo.Foo" and I map it with Hibernate, but then enhance it at runtime, the object instances are of a type such as "org.foo.Foo$$EnhancedByCGLIB$$0" - which extends "org.foo.Foo".

Is there a way to make Hibernate go ahead and persist (save()) this object (i.e. get Hibernate to see that it doesn't have a mapping for a "com.partnet.rex.Foo$$EnhancedByCGLIB$$0" , but realize that it does have a mapping for its parent class, so go ahead and use that mapping).

Likewise for load(), can I pass it an object of type "com.partnet.rex.Foo$$EnhancedByCGLIB$$0" and a key value, and ask it to populate it?


thanks,
james

Those CGLIB classes are just subclasses of the original class. Hibernate should/will treat them the same way it would treat any subclass...that said, I'm not sure what the actual behavior is regarding passing in subclassed objects--have you tried it?

Chris

I think hibernate will throw "persister not found"

Yes, that's what happens (a MappingException that says it can't find a persister for the class)