Across the PARs

[justinb]

How should I do this...

I need to create an EAR with two (or more) PARs in, hence, multiple PersistenceContexts (or that is how I understand it). But the trick, that doesn't seem to work, is to have Entity relationships between PersistenceContexts.

Is this possible?

If so, how do I do it properly? I have tried to, by just making two PARs, but the deployer doesn't seem to be able to find the Entities in the other PAR. Since that didn't work, I have resorted to putting them all into one giant PAR again. But this idea of @PersistenceContext(unitName="??") is nagging that there is a way to do this.

Thanks in advance.

[epbernard]

You can have a relationship between entities of 2 persistence units by definition of a persistence unit. But you can map an entity in 2 persistence units.

[epbernard]

Forget my last post

You can *not* have a relationship between entities of 2 persistence units by definition of a persistence unit. But you can map an entity in 2 persistence units.

[justinb]

Thank you for your quick response.

But you can map an entity in 2 persistence units.

How do you do this?

[cbax007]

I need to do this as well. Has anyone gotten a response on how to map an entity from one PAR into another PAR (aside from just duplicating the class in both PARs)?

[cbax007]

Nevermind. I see that by adding the element to the persistence.xml, you can include persistent entities from other archives.

[cbax007]

The 'class' element. That was left out of the last post.