IdentityLink and execution listener

zze_one — Tue, 10 Jun 2014 20:11:42 GMT

Hi everyone.I'm really looking forward for some help on how to set involved users and groups. Thanks in advance.I'm adding an execution listener to a user task.<userTask id="usertask1" name="First User Task"> <extensionElements> <activiti:executionListener class="realfoun

Re: IdentityLink and execution listener

sathish1 — Tue, 10 Jun 2014 20:55:53 GMT

Since you are having a user task, is there a reason you are not using the Task Listener to identify the users at that level.

More information on the <a href=http://activiti.org/userguide/#taskListeners">task listener </a>

<code>
<userTask id="myTask" name="My Task" >
<extensionElements>
<activiti:taskListener event="create" class="org.activiti.MyTaskCreateListener" />
</extensionElements>
</userTask>
</code>

Re: IdentityLink and execution listener

zze_one — Tue, 10 Jun 2014 22:07:41 GMT

Hey Sathish, thanks for replying.
The reason is the following :

My goal is to add involved users on task instances.
Let say my workflow is composed of two user tasks, usertask1 and usertask2.

By using a task listener
- I would provide the group of involved users in a process variable called involvedGroup when instantiating the process.
- I would write, in my listener's notify() method :
<code>
if (delegateTask.getVariables().containsKey("involvedGroup")) {
            delegateTask.addGroupIdentityLink(delegateTask.getVariable("involvedGroup").toString(), "involvedGroup");

        }
</code>

This would be a good solution if I wanted the same involved users associated with both task instances, from userTask1 and userTask2.

But 2 tasks instances of a same process instance may need different involved users.

By using an Execution Listener, I was hoping to provide those different values

<code>
<userTask id="usertask1" name="First User Task">
<extensionElements>
       <activiti:executionListener class="realfoundation.foundationservices.process.tasks.FoundationTaskListener" event="start">
        <activiti:field name="involvedGroups" expression="${organizers}" />
       </activiti:executionListener>
     </extensionElements>
    </userTask>
</code>
<code>
<userTask id="usertask2" name="Second User Task">
<extensionElements>
       <activiti:executionListener class="realfoundation.foundationservices.process.tasks.FoundationTaskListener" event="start">
        <activiti:field name="involvedGroups" expression="${organizers2}" />
       </activiti:executionListener>
     </extensionElements>
    </userTask>
</code>

I have a very hacky solution in mind (that would imply both, the execution listener and the task listener), but after reading advice from this post, i felt like that there was a better solution…

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