This is probably a dumb question…
We have a process currently that when it finishes, sends a signal that another process needs to start, operating on the same basic set of variables. This is pretty straightforward as we can just use a Signal End Event.
However, from my beginners understanding of BPMN (and my general knowledge of messaging patterns), I had the impression that a Message would be a better way to do this - we don’t want to broadcast a Signal to any needed listeners, we want to message a single known process that should pick up the flow of work at that point. (i.e. this seems like it should be point-to-point not publish/subscribe?)
However, I can’t seem to get even a basic example of this to work - if I have a process
foo.bpmn with a Message End Event, with a message named
message_bar - and I have a process
bar.bpmn with a Message Start Event, with a message also named
message_bar - it just doesn’t work.
I have a feeling I’m missing something fundamental here. All the docs seem to have messages within a single bpmn process, on different participants/pools - is it possible to do this to another process entirely?
Also Message End Events don’t have a lot of documentation - they seem to just say “he Message End Event has the same behavior as a Service Task.” - does that mean we need a Java implementation???
Please enlighten me! Or should I just stick to signals? (I’m not even sure if messages will let me share variables between the processes)