Hello, i'm not sure where to ask this but i think this place might be ok. Anyway, i was wondering how session beans can have transaction control when *I* have total control over what happens inside a session bean's method.

For example, my whole session bean method could consist of a large try/catch block. Inside this try block I get a connection, I update some rows, and an exception is thrown.

How does the session bean get informed of this so that it rolls back the transaction? I mean, I have a try/catch block around the whole thing. The fact that an exception occurred doesn't even go back to the caller. Can someone please explain this "magic"?