Maybe I'm stating the obvious here, but for a J2EE developer learning Seam... some reassurance is nice to have:

When using seam-managed persistence contexts, is it always necessary to inject the EntityManager with @In or does the traditional @PersitenceContext also work? In the documentation, it reads:

Now we can have our EntityManager injected using:

@In EntityManager bookingDatabase;

Not trying to be picky, but since @PersistenceContext will still work in a session bean component. Therefore I wonder if Seam will provide the EntityManager in both cases (i.e. it doesn't make a difference) or not (i.e. only the @In-injected entity manager is seam-managed).