[jboss-user] [JBoss jBPM] - Re: Fork Node Issues

[koen.aers@jboss.com]

There are different solutions to this problem, but I would not create a custom join node for it. 

1. You could use two tasks on a single task-node, the read-only task assigned to the student is not 'endable' and it can only end when the second task is ended. To do this, end the read-only task from an action handler that is triggered on the task-end event of the second task.

2. You could use two task-nodes and play with the signalling attribute of the read-only task. Set the signalling attribute to never and recreate a task for this task node eacht time the read-only task is ended (in an action handler triggered in the task-end event). For the other task, again in an action handler triggered in the task-end event, cancel the pending read-only task and signal its token. It is possible that you have to use an asynchronous mechanism for this option because of synchronization issues in the join.

I would personally opt for the first choice.

Regards,
Koen

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