Hibernate version: 2.1

I've two beans, FullCompany and ShortCompany. The last one is used only to retrieve a small set of "Company" properties, just to show a list and to avoid big data tranfer (FullCompany is a very big bean). I cannot change, by now, this situation refactoring the beans (or even the db).

Both beans are mapped on the same table. If, IN THE SAME SESSION, I retrieve a ShortCompany bean (eg. with id 27) and then I retrieve a FullCompany bean (with id 27) Hibernate return always the same ShortCompany bean (id 27), so I get a ClassCastException, casting the load(...) return value to FullCompany.

fullCompany = (FullCompany)session.load(FullCompany.class, id);

gives back the id 27 ShortCompany bean

Obviously, if I close the session and open another one, all works correctly.

Is this behaviour ok?

Stefano.

yes this is expected.
You cannot have two representations of the same row in the same session.

this can help
http://www.hibernate.org/41.html