Re: [hibernate-dev] JdbcSession proposal

Hi Steve, Looking at the Javadoc for javax.transaction.Transaction.registerSynchronization(Synchronization sync), I see: Throws: RollbackException - Thrown to indicate that the transaction has been marked for rollback only. That would make it a JTA spec requirement. More feedback coming... ----- Original Message ----- > From: "Steve Ebersole" <steve(a)hibernate.org&gt; > To: "hibernate-dev" <hibernate-dev(a)lists.jboss.org&gt; > Sent: Friday, December 6, 2013 10:07:22 AM > Subject: Re: [hibernate-dev] JdbcSession proposal > > So I'll get the ball rolling :) Here is one thing in particular I was > hoping to start a discussion on... > > For JTA transactions we currently have a lot of complex logic to manage > who "drives" the transaction flow into Hibernate (in terms of Hibernate > reacting to the completion). There are potentially 2 drivers: > 1) A JTA Synchronization registered with the JTA system > 2) The org.hibernate.Transaction instance > > A lot of the complexity in our current code comes from the fact that we > have a lot of attempting to handle cases in which the JTA > Synchronization cannot be registered. So one of the simplifications I > am wanting to make here is to say that the driver will always be the > JTA Synchronization. So I am trying to determine how "actual" these > cases where the "JTA Synchronization cannot be registered" are. > > The only one that I am aware of IIRC is that JTA Synchronization cannot > be registered on transactions that are marked for rollback-only. I > cannot remember though if that was a specific provider (JBossTS?) or a > JTA/JTS spec requirement. > > So the proposal I have is that for JTA cases we always register the JTA > Synchronization and allow that to drive the "before/after completion" > callbacks (the org.hibernate.Transaction would still potentially manage > actually calling commit/rollback on the > TransactionManager/UserTransaction). In short, does any one see > problems with this approach? > > > On Wed 04 Dec 2013 11:27:10 AM CST, Steve Ebersole wrote: >> I found a few spare minutes to work on this a little and move it into >> the next stage with some actual interfaces, impls and usages to help >> illustrate some of the proposed concepts. >> >> https://github.com/sebersole/JdbcSession >> >> The README.md is very up-to-date and detailed. Would be good to get >> input from others. >> >> >> P.S. I probably dislike the *Inflow naming more than you do :) > _______________________________________________ > hibernate-dev mailing list > hibernate-dev(a)lists.jboss.org > https://lists.jboss.org/mailman/listinfo/hibernate-dev >