Publishing a technical discussion for a more thorough peer review: > From: Steve Ebersole > Sent: Monday, August 09, 2004 6:31 PM > To: Alexey Loubyansky; 'Christian Bauer'; 'Gavin King' > Cc: Ivelin Ivanov > Subject: RE: jboss - hibernate > > #4 would add "CMT-like" capability strictly around a > Hibernate session. Say I'm not using JTA but I want > automatic transaction handling (of the Hibernate Transaction > object, that is). Probably rare, I know, given the > environment, but definitely possible. This would use a > pattern similar to the HibernateUtil stuff Gavin and > Christian developed for the book. > > #6 would be the ability to retrieve a different session other > than the one currently bound to the SessionContext for a > given jndi name. Consider a Hibernate Interceptor. Most > calls (the ones where you'd most like to do it, at any rate) > into the Interceptor expressly prohibit any calls back into > the session. The typical recommendation around this is to > generate a new session on the same connection as the original > session (something like > SessionFactory.openSession(originalSession.connection())). > This would be a way for those types of calls to happen in the > same fashion as the others (something like > SsessionContext.getUnmanagedSession()). > > > -----Original Message----- > From: Alexey Loubyansky > Sent: Monday, August 09, 2004 10:15 AM > To: Steve Ebersole; 'Christian Bauer'; 'Gavin King' > Cc: Ivelin Ivanov > Subject: RE: jboss - hibernate > > Hi Steve, > > 1 is definitely needed. Could you please clarify 4 and 6? > > Thanks! > > alex > > > -----Original Message----- > > From: Steve Ebersole > > Sent: Monday, August 09, 2004 6:03 PM > > To: Christian Bauer; 'Gavin King'; Alexey Loubyansky > > Cc: Ivelin Ivanov > > Subject: jboss - hibernate > > > > Some thoughts on jboss - hibernate integration moving forward: > > > > 1) There is no lifecycle listening between the > interceptors/context > >and the mbean. This means the mbean could be stopped and > the session > >context stuff would fail with misleading errors. The > registration of > >a jndi name with the SessionContext should also spawn a jmx > listener > >on the s mbean for its lifecycle events, so that we can > appropriately > >cleanup the context when the mbean stops. > > > > 2) The deployer uses the Hibernate method > > Configuration.addJar() to parse the deployment for mapping files. > > This method has been deprecated. We should either reconsider that > > deprecation, or re-implement that functionality in the deployer > > itself. > > > > 3) Need to add auto-flushing capability to the interceptors. > > This should be configurable, with 3 options: NEVER, ALWAYS (i.e., > > after each intercepted method), BINDER (i.e., after > intercepted call > > which resulted in session binding). Maybe there are better names. > > > > 4) Should we add auto-transaction capability similar to #3 above? > > This would really only be pertinent for thread scoped session > > interception. This could be handled by the current > interceptors, or > > as a separately applied interceptor. > > > > 5) Consider additional configuration capabilities for the mbean, > > similar to the discussion for the generic hibernate jmx stuff. > > > > 6) Add the ability to retrieve an "unmanaged" session from the > > SessionContext. This probably makes the most sense as a > new session > > on the same connection as the existing "managed" > > session. This allows app code to get all sessions in a similar > > fashion. > > > > 7) A clean way to attach Hibernate Interceptors. > > > > > > Anyone have any additional desires for this stuff moving > forward? Or > > agree/disagree with anything above?
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