I am attempting to write a demo of a JAX-WS service participating in a global transaction. This is a model my organization will be doing more of as time goes on and we need to figure it out, but I am struggling.
I have a WSDL service being invoked from a client (which is also in a Java EE servlet with the same config...in fact it is the same server, but I can see that it is calling out over the wire to itself). Both are updating their rows, and then I throw an exception but the service will not rollback.
I have annotated a method that invokes both a local DAO update and the WSDL service client with @Transactional(propagation=Propagation.REQUIRED). That service in turn invokes another method, also anotated in the same way, which in turn calls a dao method to do another db update.
I have followed some tutorials that had me go in to the Services view and add the WSTRansaction policy sets and bindings o the client and service (both generated initially from the RAD wizard), and then again into Admin Console applications->application Types->Websphere enterprise apps->my app->Service provider/client policy sets and bindings. There I added WSTransaction to client and service respectively at the parent application level (the policy inherits down to the endpoint).
But at the end of the day, no rollback is happening. Help! What am I missing? What have I misconfigured?
I found how to turn on the websphere transaction trace log in the admin console. It says (edited for brevity):
No transaction context found
Entry parm0=Operation: isAlive
No transaction context from incoming request
These messages come with a bunch of what appear to be inspections of objects, and they repeat many times. Okay, so I appear to not be sending a transaction context from my client. But I still don't understand why. Anyone?