Hi. I'm not sure what I'm doing wrong here. I'm creating a temporary entity, within transaction, deleting the entity before committing. I need that temporary entity in the database during the transaction though... My code is roughly doing this:
EntityManager em; // have it E_App temp = new E_App(); temp.setPrimaryKey(temporaryPK); em.merge(temp); em.flush(); // the temporary entity is in the database, as I wanted (verified) // do other crazy stuff now, not touching temp instance in any way // (except from side direct DB queries that don't modify any managed columns) em.remove(temp); em.flush(); // I added that line in hope it might make a difference, but it doesn't // some other stuff, also changes persistence context em.getTransaction().commit(); The problem is that temp shows up in the database after commit. There is a statement in the spec that says that if you call remove() on a new entity, it's a no-op. I agree it should be, but I don't think new and merged entity qualifies for being "new". I tried to trace this down, and from what I can see, BrokerImpl.delete(Object,OpCallbacks) gets <null> from getStateManagerImpl() for that object, passing it as a second arg into delete(Object, StateManagerImpl, OpCallbacks), which effectively makes it a no-op. Thank you, Pawel.
