|Caching Behavior for @ReadOnly Entities? [message #517594]
||Mon, 01 March 2010 08:14
| No real name
Registered: March 2010
I've got a number of entities tagged as @ReadOnly, and I can't seem to
control when they refresh their state from the database, either manually or
through cache configuration. My ideal would be one of these two options:
1) Configure the cache so the state of a @ReadOnly entity is preserved for
the duration of a single UnitOfWork.
2) Be able to manually refresh the state of a @ReadOnly entity.
I've tried various ways to accomplish #1 (Even setting CacheType to NONE as
an experiment) and EclipseLink doesn't seem to care. The documentation is
sparse on the intersection of @Cache and @ReadOnly, though, so hopefully I'm
just missing something.
There isn't an obvious way to get at #2 either. @ReadOnly entities are
detached, so calling EntityManager.refresh() just causes an exception.
Anybody have any advice for me?