Maciej Swiderski [http://community.jboss.org/people/swiderski.maciej] created 
the discussion

"Re: How to query tasks"

To view the discussion, visit: http://community.jboss.org/message/643019#643019

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Tommer, for what you describe human task notifications sound like perfect fit. 
They are part of deadlines configuration of a task. To be more precise start 
deadline. In general, start deadline is reached when task is not started before 
the given time expires. There are two options for deadline escalation:
* notification
* reassignment
Both can be used at the same time, but in your case notification is more 
interesting. 

Notification (email notification) can be sent to some recipients that are not 
assigned directly to a task, which could be what you are looking for since 
there is no user registered at the moment.

Unfortunately there is no out of the box support to define deadlines in BPMN2, 
at least I do not know it. So extension of *HumanTaskHandler class will be 
required to setup deadlines on the task. Some additional configuration is 
needed on Task Server side as well, for details about task server please have a 
look at:  
https://github.com/droolsjbpm/jbpm/blob/master/jbpm-human-task/src/test/java/org/jbpm/task/service/TaskServiceDeadlinesBaseTest.java
 
https://github.com/droolsjbpm/jbpm/blob/master/jbpm-human-task/src/test/java/org/jbpm/task/service/TaskServiceDeadlinesBaseTest.java

HTH
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