According to
http://www.oracle.com/technology/products/ias/toplink/jpa/resources/toplink-jpa-annotations.html#PersistenceContext
...I can get a handle to the EntityManager in a stateless session bean with:
@PersistenceContext
EntityManager em;
In my case, however, I simply have an entity (class annotated with
@Entity) and I need to be able to get the EntityManager associated with
it so I can persist it. Is there any way to do this from the class
itself? Obviously my code creates an entity manager factory at some
point to deal with this, but I have an extra layer of abstraction for
dealing with certain entities and I want to be able to call:
someObjectThatKnowsNothingAboutMyPersistenceUnit.persist(myEntity)
If it sounds too complicated, it's because I'm simplifying here. ;) To
put it simply, can an entity class instance in any way persist itself,
either by producing its own EntityManager or otherwise?
Thanks,
Bobby