I'll try to describe the situation. We have a web service; on each request web service starts a JTA transaction. It performs several database calls through XA datasource within that and calls some other web services (out of transaction context) and also makes a couple of remote EJB calls on other server.
The problem is that container seems to try to involve EJB into transaction (and that seems logical), but in fact I want it to not particpate in that transaction as when it does participate in that transcation it always times out in the final commit phase, but when I exclude EJB call it works fine.
I cann't change EJB implementation and only control web service code. So, my question is: how do I make an EJB call to transaction-aware EJB, but out of my JTA transaction, but still being in JTA transaction for other XA resourse? I hope I made my question clear :).
EDIT: Trying to make it more clear with pseudo-code example:
// Begin transaction
UserTransaction tx = (UserTransaction) ctx.lookup(USER_TRANSACTION);
tx.begin();
// Do some database operations on XA datasource
// Call remote EJB which has transcation attribute set to 'Supports'
AccountInfo account = accountEjb.getAccountInfo(userId, accountId); // <-- Is it possible to make this to be not be part of user transction?
// Do some more database operations on XA datasource
// Commit transaction
tx.commit();
You can create another bean with some appropriate transaction attribute. This bean can delegate all calls to the first bean.
Or you can invoke this ejb from another thread.