propagating updates to process variables

[aapthorp]

In jBPM/ jPDL is it possible to update process variables and propagate the change to currently open tasks? For example in the course of an order process some details of the order may change that can cause already assigned task instances to be cancelled or changed.

I was wondering whether superstates can help here.

[kukeltje]

no, not without you writing some code. In 3.0 there were no task specific variables so each (parallel) task could modify the processvariables. Most users found this unwelcome and therefore the behaviour changed.

About how (and if) superstates could help I have no clue..

[aapthorp]

Ronald, thanks, I had a suspicion this was the case. Strange I would've thought this would be a common requirement. Hmm, need to find the right way to model this first. I tried having an update task in the task node with the task I want to have updated - but couldn't figure out how to signal the target task instance when the update occurred.

[kukeltje]

I think you should create an action, put that on each (task) node-leave event. In that action, search al tasks with the same parent token (meaning they are in parallel) and then update the variables of those tasks.

[kukeltje]

s/should/might be able to/