I read on OASIS specs that when an application receives a prepare, commit or abort message for an unknown participant, it should reply to the coordinator by calling the aborted, prepared and aborted services respectively.
The question is: When I have a participant, I know the location of these services because the coordinator sent them on registering the participant, and this endpoint reference is stored with the participant itself. So, when I don't have a participant, I don't know where these services are located.
So, how am I supposed to know (or where am I supposed to get) the location of these services, so I can reply the coordinator?
Thanks!