Question

I know that nhibernate doesnt support nested transactions.

Let’s say that I got something like this:

1. UserService.BeginTransaction (on current session)
2. UserService.Save
3. UserService->FeedService
   1. FeedService.BeginTransaction (on current session)
   2. FeedService.Save
   3. FeedService.Commit (on the returned transaction in #3.1)
4. UserService->AddressService
   1. AddressService.BeginTransaction (on current session)
   2. AddressService.Save
   3. AddressService.Commit (on the returned transaction in #4.1)
5. UserService.Commit (on the returned transaction in #1)

What happens when commit is invoked in #3.3, is the transaction commited? I need everything to either succeed or fail.

Answer 1

As Jamie said, transactions should be managed at a higher level to avoid this situation.

However, if you must keep the begin/commit at the “Service” level for whatever reason, you could wrap everything in a TransactionScope, which you’ll Complete() only after everything suceeds.