Re: Activity which fires when a wfd variable changes state

Hi Geeta,

I think the simplest solution with shark would be to introduce helper variable of the same type in XPDL, to define tool agent (before activity that could change this variable) which would assign the helper variable to the value of the original variable, and to have a conditional transition before activity that should fire only if variable changes (the condition would be !helperVariable.equals(origVariable)).

Didn't try it, but I think it should work.

Greetings,
Sasa.
  ----- Original Message ----- 
  From: [email protected] 
  To: [email protected] 
  Sent: Thursday, September 15, 2005 3:33 PM
  Subject: [shark] Activity which fires when a wfd variable changes state



  I am asking this question again in hopes somebody will take a few minutes to answer: 

  I have an activity which has to fire only when the value of a wfd variable changes (in a previous activity). First, can this information be coded into the xpdl? If so, how? If not, how do people attack this kind of situation? If there is documentation on this topic, a link would be great.. 

  I would be very very grateful for any help. 
  thanks in advance, 
  Geeta


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