[jboss-user] [JBoss jBPM] - Re: replication of task at runtime

[WalterTaus]

Hi,

I have now implemented this ForEachForkHandler and it works. However, I have now come up with an extended scenario.
In my ForEachForkHandler I create 4 tasks. However, in specific situations I want already to continue when  the first two tasks are completed. Therefore, I have tried to implement a kind of housekeeping handler which I call from the join to get rid of the "unnecessary" tasks.

My process consists of
1) fork
2) 4 activities which have been generated by the ForEachForkHandler
3) join

When entering the join I call setNOutOfM with an appropriate value. Secondly I invoke the handler listed below:


  | ublic class MultiinstanceHouseKeepingHandler implements ActionHandler {
  | 
  | 	@Override
  | 	public void execute(ExecutionContext ctx) throws Exception {
  | 		// TODO Auto-generated method stub
  | 		Token t = ctx.getToken();
  | 		Collection til = ctx.getTaskMgmtInstance().getTaskInstances();
  | 		Map childTokenList = t.getParent().getChildren();
  | 		Set ks = childTokenList.keySet();
  | 		Iterator it = ks.iterator();
  | 		while (it.hasNext()) {
  | 			Token ct = (Token)childTokenList.get(it.next());
  | 			if (ct == t)
  | 				continue;
  | 			Iterator itil = til.iterator();
  | 			while (itil.hasNext()) {
  | 				TaskInstance ti = (TaskInstance)itil.next();
  | 				if (ti.getToken() == ct) {
  | 					ti.cancel();
  | 					ct.end();
  | 					break;
  | 				}
  | 			}
  | 		}
  | 	}
  | }
  | 
The process continues correctly with the task following the join. However, I cannot get rid of the other unwanted tasks and they stay forever on my worklist.
What am I doing wrong here?

Thanks,
    Walter

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