How to set timeCycle on boundryEvent at runtime

[onkarruikar]

I am using jbpm5 and trying to set variable time in bpmn file on boundary event. Pleae refer following code:

<boundaryEvent id="_11" name="TimerEvent" attachedToRef="_4" cancelActivity="false" >
      <timerEventDefinition>
        <timeCycle xs:type="tFormalExpression">#{time}</timeCycle>
      </timerEventDefinition>
</boundaryEvent>

But this gives following exception

org.drools.RuntimeDroolsException: Error parsing time string: [ #{time} ]
    at org.drools.time.TimeUtils.parseTimeString(TimeUtils.java:132)

Is there any way I can set variable time on boundry event?

[onkarruikar]

Found a solution, instead of boundary event, I used Timer. And before timer placed one Script Task.

Following script did the job:

org.jbpm.workflow.core.node.TimerNode timerNode =

            (org.jbpm.workflow.core.node.TimerNode)

                kcontext.getNodeInstance().getNode().getNodeContainer().getNode(237);

timerNode.getTimer().setPeriod(reminderInterval);

timerNode.getTimer().setDelay(reminderInterval);

reminderInterval is process variable and 237 is id of the timer node.

[krisverlaenen]

You should be able to use something like <timeCycle xs:type="tFormalExpression">#{time}</timeCycle> to dynamically resolve the value of the time cycle, just make sure that you define the parameter as a process variable, so the process knows where to look up the value.

Kris

[onkarruikar]

When I use <timeCycle xs:type="tFormalExpression">#{time}</timeCycle> I get following exception:

org.drools.RuntimeDroolsException: Error parsing time string: [ #{time} ]
    at org.drools.time.TimeUtils.parseTimeString(TimeUtils.java:132)

I debuged it and found TimeUtils gets '#{time}' value as it is.

The expression is not getting evaluated.

[krisverlaenen]

Not sure which version you are using, but support for dynamic resolution of timer properties was added on November 26th, so it should be included in the latest CR1 release:

https://github.com/krisv/jbpm/blob/5.0-CR1/jbpm-flow/src/main/java/org/jbpm/workflow/instance/node/StateBasedNodeInstance.java

(check the resolveValue(..) in the createTimerInstance method)

If you are using the latest version, but still have issues, could you give an example process + java file that show this issue?

Kris