I like it. I tried to do something generically in the AS7 JPA code to have a protected bag of such things at the container EntityManager level. Just keep in mind that AS will try to serialize the objects when clustering.
See https://github.com/jbossas/jboss-as/blob/master/jpa/src/main/java/org/jboss/as/jpa/container/AbstractEntityManager.java protected void addExtension(Class cls, Object extension) { extensions.put(cls, extension); } public <T> T unwrap(Class<T> cls) { Object x = extensions.get(cls); if (x != null) return (T) x; return getEntityManager().unwrap(cls); } Also see some unwrap tests in https://github.com/jbossas/jboss-as/tree/master/testsuite/integration/src/test/java/org/jboss/as/testsuite/integration/jpa/hibernate The SFSBHibernateSession test bean is based on the generic JPA EntityManager.unwrap(Class) we discussed before. Scott On 04/05/2011 03:19 AM, Emmanuel Bernard wrote: > In JPA and other Java specs, there is a pattern emerging where one could > unwrap some objects from a common API > > interface EntityManager { > T unwrap(Class<T> type); > } > > We typically let a Session be extracted from an EntityManager > > Session session = entityManager.unwrap(Session.class); > > I wonder if we want do provide a possibility for third party Hibernate > integrators to let some objects be unwrapped. > > FullTextSession ftSession = session.unwrap(FullTextSession.class); > //the current approach is via some static helper method > //FullTextSession ftSession = Search.getFullTextSession(session); > > That would mean that the integration point between HSearch and Hibernate > would have an unwrap method and Hibernate would delegate the unwrap calls to > each integrator until a non null object is returned. > > It's just a thought, WDYT? > _______________________________________________ > hibernate-dev mailing list > hibernate-dev@lists.jboss.org > https://lists.jboss.org/mailman/listinfo/hibernate-dev _______________________________________________ hibernate-dev mailing list hibernate-dev@lists.jboss.org https://lists.jboss.org/mailman/listinfo/hibernate-dev
