Does Hibernate have a dummy transaction manager that I can use? We need the read/write capabilities of JBossCache but we don't need the app server overhead. I thought I read somewhere that one was available.

JBoss has confirmed that JBossCache is not XA compliant. Why is it necessary for Hibernate and JBossCache to be transactional? How does it even work? Does Hibernate manage rollback when there is a failure?

This issue came up when I was trying to integrate a lightweight java transaction manager (no app server) with Hibernate. My company has an internal utilties group that had created one, apparently because other groups require it.

The 3.0 testsuite has a *very* simplified TransactionManager used for some of the tests; you can take a look at that. It is in org.hibernate.test.tm

Thanks. I'll take a look at it.

A couple of things that I've picked up in case anyone else has the same problem that I have.

- JBossCache has a DummyTransactionManager as well. But it's not useful since it's truly a dummy. It doesn't map to a database transaction.

- Ben Wang in the JBoss forum pointed me towards JOTM. An open source Java Transaction Manager used in JoNAS. Looks like it could be useful.

Wow, a little search goes a long way. There is already a JOTMTransactionManagerLookup class in Hibernate.

In addition, the following thread,
http://forum.hibernate.org/viewtopic.ph ... light=jotm

deals with the one sticky issue that I have which is, my DBAs won't allow our Sybase 12.5 to be a XA resource. I can get around it by setting
hibernate.transaction.factory_class =
net.sf.hibernate.transaction.JDBCTransactionFactory.

Tyrex is another open source TM. I've used both in the past. Both are ok.