Hello,

I have a class hierarchy something like this:

* abstract main data class

* non-abstract class with businnes methods, extending the abstract main data class

I'm using xdoclet with @hibernate/<hibernatedoclet> to generate the mappings for hibernate. Those tags are only present in the main data-class, since subclass is dynamically generated (using <ejbdoclet>) and does not hold any persistent data.

So the .hbm.xml files have mappings for the main data class only.

Now, when trying to use hibernate to e.g. save() : .. i get HibernateException: Unknown entity class: <Derived classname>.

My conclusion atm is that hibernate can only persist non-abstract classes, which actually would complicate my design a bit - is there a way around this ? Or am I doomed to make mappings for all generated classes/make a non-abstract data class ?

In the heat of the moment i forgot to mention that I'm using the hibernate2 (newest production release).