Is is possible, given an EntityManager, to programmatically discover which persistence unit it is associated with? I would like to be able to write a unit test which verifies that the correct persistence unit is being used. I've dug through the source code and can't come up with a way to access PersistenceContext, PersistenceUnit or PersistenceUnitInfo.

Thanks,

Liz

Anybody have any idea about this? Is there any way to access information about the persistence unit from code?

an entity manager getDeelgate() is a Session and from a session you can get the session factory