[jboss-user] [jBPM] New message: "jbpm 4.3 timer expression"

[Martin Pradny]

User development,

A new message was posted in the thread "jbpm 4.3 timer expression":

http://community.jboss.org/message/531391#531391

Author  : Martin Pradny
Profile : http://community.jboss.org/people/mpradny

Message:
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Hello,
 
 I wanted to configure timer duedate and repeat attributes from instance variables, but I couldn't get direct access to them. After some time with debugger I've found that Juel evaluator of timers doesn't have access to execution context, but to job context only. Instead of #{escalate} I had to use
*#{job.execution.variables['escalate']}* .
 
here is xml snippet:
 
<task g="203,152,92,52" name="initiation" assignee="#{initiator}">
        <on event="start">
              <event-listener class="com.pradny.task.EventHandler">
               <field name="type"><string value="task-start1"/></field>              
              </event-listener>
              <event-listener class="com.pradny.task.EventHandler">
               <field name="type"><object expr="#{escalate}"/></field>              
              </event-listener>
        </on>
        
        <on event="timeout">
              <timer duedate="10 seconds" repeat="*#{job.execution.variables['escalate']}*"/>
          <event-listener class="com.pradny.task.EventHandler">
               <field name="type"><string value="task-overdue"/></field>              
          </event-listener>
        </on>
        <transition to="approval" />
    </task>
 
 
Could anyone confirm that this approach is correct? Is there any reason that wouldn't allow standard access to instance variables?
 
Thanks,
 
 Martin

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