Note that you should either use the OpenJPAPersistence.cast() call or cast the return result of EntityManager.getDelegate() to portably convert an EM reference to an OpenJPAEntityManager. This is because appservers end up needing to proxy EMs, and the spec does not require that the proxy implement all the interfaces that the EM implements.
Hint to Geronimo team: it'd be swell if you made your injected proxy implement all the interfaces that the EM implements. Means you need to go the dynamic proxy route instead of a static proxy route, though. -Patrick -- Patrick Linskey BEA Systems, Inc. _______________________________________________________________________ Notice: This email message, together with any attachments, may contain information of BEA Systems, Inc., its subsidiaries and affiliated entities, that may be confidential, proprietary, copyrighted and/or legally privileged, and is intended solely for the use of the individual or entity named in this message. If you are not the intended recipient, and have received this message in error, please immediately return this by email and then delete it. > -----Original Message----- > From: Dain Sundstrom [mailto:[EMAIL PROTECTED] > Sent: Monday, December 11, 2006 11:01 AM > To: open-jpa-dev@incubator.apache.org > Subject: Get primary key from persistent bean > > Is there a way to extract the primary key from a persistent bean > using a spec JPA API or an API specific to OpenJPA? I'm thinking of > something like this: > > MyBean bean = new MyBean(); > entityManager.persist(bean); > Object pk = entityManager.getPrimaryKey(bean); > MyBean foundBean = entityManager.find(MyBean.class, pk); > assertEquals(bean, foundBean); > > -dain >
