This week's book giveaway is in the OCPJP forum. We're giving away four copies of OCA/OCP Java SE 7 Programmer I & II Study Guide and have Kathy Sierra & Bert Bates on-line! See this thread for details.
I don't normally drink beer, but when I do. I prefer Dos XX.
Sorry, I prefer using a Transaction manager and not use .beginTransaction() commit() and rollback() because I get to put my transaction demarkation at the best level/tier that it should be set at. The service layer. My Use Cases are what I need transactional, the whole Use Case, and be done when the use case finishes. Since the Service Layer is where I start and stop my use cases, it is the perfect candidate to demark my transaction boundaries.