topic Exclusive Join in Alfresco Archive https://connect.hyland.com/t5/alfresco-archive/exclusive-join/m-p/25781#M12768 <HTML><HEAD></HEAD><BODY><SPAN>I don't suppose there's a way in the current Activiti Designer to have a Gateway in which many executions can come in, but only the first that arrives goes out … the others are discarded / cancelled</SPAN><BR /><BR /><SPAN>best explained here I think … </SPAN><A href="http://www.workflowpatterns.com/patterns/control/new/wcp29.php" rel="nofollow noopener noreferrer">http://www.workflowpatterns.com/patterns/control/new/wcp29.php</A><SPAN> </SPAN><BR /><BR /><SPAN>I've tried using an ExclusiveGateway but couldn't seem to get it to work .. not sure if I'm doing it correctly though.</SPAN><BR /><BR /><SPAN>Right now I'm attempting a slight kludgy work-around. Say I have two concurrent UserTasks A &amp; B, only one of which needs to complete before it moves onto a third UserTask C. When either A or B completes, execution goes to a ServiceTask that cancels the other parallel UserTask via an API call and then moves onto UserTask C</SPAN></BODY></HTML> Thu, 30 Dec 2010 19:55:39 GMT yangyang_qian 2010-12-30T19:55:39Z Exclusive Join https://connect.hyland.com/t5/alfresco-archive/exclusive-join/m-p/25781#M12768 I don't suppose there's a way in the current Activiti Designer to have a Gateway in which many executions can come in, but only the first that arrives goes out … the others are discarded / cancelledbest explained here I think … http://www.workflowpatterns.com/patterns/control/new/wcp29.php I've trie Thu, 30 Dec 2010 19:55:39 GMT https://connect.hyland.com/t5/alfresco-archive/exclusive-join/m-p/25781#M12768 yangyang_qian 2010-12-30T19:55:39Z Re: Exclusive Join https://connect.hyland.com/t5/alfresco-archive/exclusive-join/m-p/25782#M12769 <HTML><HEAD></HEAD><BODY><SPAN>I dont know about the designer, but engine-wise you should be able to implement that pretty simply. Take a look at the ParallelGatewayActivity, that should give you an idea on how you can implement such a gateway.</SPAN></BODY></HTML> Mon, 03 Jan 2011 12:03:01 GMT https://connect.hyland.com/t5/alfresco-archive/exclusive-join/m-p/25782#M12769 jbarrez 2011-01-03T12:03:01Z