Re-entering a StartState

[pirx]

Does anybody know the reasoning, why it is forbidden to re-enter a
start state via a transition ?

Maybe because of symmetry ? (If an end point must not have
exiting transitions, a start state must not have any incoming transitions)

But technically, I do not see any reason and I can imagine use
cases where a re-entering of a start state might make sense (e.g.
coming back from some escalation node for an escalation which
is triggered from the start state).

thanx ...

...roland

[pojomonkey]

I was thinking the same if, for example, there was an 'error' in the process variables, and you might want to 're-start' the process.

I guess if you actually want to re-start the process, then it might equally make sense to 'end' the current one and then to simply start a new one? Otherwise you'd have to consider how you would handle having another instance of the start task created.

[dleerob]

In my JBPM system, I have implemented the ability to re-route tokens to where ever you want. I also got errors when trying to route if back to a start state. So as a solution, I have put in some validation which doesn't allow you to route it to the start state. Instead, it tells you to rather create a new flow. That's basically what you would be doing anyway.