[jboss-user] [JBoss jBPM] - a question about TaskController

[clandestino_bgd]

Hi,
I use default TaskController for submitting parameters collected on task form. I do not know how I was missing this issue all this time, but it just happened :)

so this line in mentioned class caused me headache + couple of hours:

  | if (value!=null) {
  |               log.debug("submitting task variable '"+mappedName+"' to process variable '"+variableName+"', value '"+value+"'");
  |               contextInstance.setVariable(variableName, value, token);
  |             }
  | 
which means, I guess, that if the variable in task variable map has value NULL, it will not be copied to token, or process instance variable.

Now, if I have task form (jsp) with check boxes and I collect submitted fields by request.getParameter(), I want to NULL this value on process level, but simply it cannot do.

I am sure there was a reason for implementing this behavior. If somebody knows, I would be happy to hear it.
Now, I am going to sharp my pen and write my own implementation of Task Controller.

And yes, user doc says:
anonymous wrote : 
  | When the user ends the task, the task controller is responsible for updating the process variables based on the task instance data.
  | 
Thanks for comment,
cheers and long live JBPM!
milan

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