[jbpm-users] [jBPM Users] - Re: sub process event propagation
So my final (JBPM 3) solution for this requirement is as follows.
An actionhandler in the subprocess which propagates the event to the superprocess.
public void execute(ExecutionContext executionContext) throws Exception {
|
| if (eventType == null) {
| eventType = executionContext.getEvent().getEventType();
| }
| Token superToken = executionContext.getProcessInstance()
| .getSuperProcessToken();
| ExecutionContext superContext = new ExecutionContext(superToken);
| superToken.getProcessInstance().getProcessDefinition().fireEvent(eventType,
superContext);
| }
and another action handler to handle the propogated event in the superprocess:
|
| String nodeName=null;
| String transitionName=null;
|
| public void execute(ExecutionContext executionContext) throws Exception {
|
| List tokenList = executionContext.getProcessInstance().findAllTokens();
| for (Iterator it = tokenList.iterator(); it.hasNext();) {
| Token token = (Token) it.next();
| if (token.getNode().getName().equals(nodeName)) {
| token.signal(transitionName);
| }
| }
| }
The propagated event can then be sent to a state that transitions to a join to control the
main flow of the superprocess. I'm sure there are some other ways of getting the same
effect but this seems to work quite well. I have also refined it further to consolidate
events of the same type from multiple instances of the same subprocess.
Now need to see how this is achieved in JBPM4.
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