Steve Ebersole I was a bit afraid you won't like that - I don't either. My problem is that I need to hook a synchronization on the ongoing non-JTA transaction deep in 2LC, where I don't have any access to the Transaction, since the SPI in xRegionAccessStrategy does not pass the current session, nor transaction. I even don't have access to SessionFactory in RegionFactory so that I could force the user to use ThreadLocalSessionContext.