topic Re: Cancel vacation request in Alfresco Archive

Cancel vacation request

mikuc — Wed, 05 Nov 2014 14:44:13 GMT

HelloI am designing a process for approving and cancelling vacation in a company.The initiator will fill a form with date and place, after that the service task finds his supervisor and assign it to him. Then he decide to approve or reject the request, after it there are some notifications and the v

Re: Cancel vacation request

smirzai — Wed, 05 Nov 2014 15:57:53 GMT

Actually I cannot see any way in BPMN so that you can cancel an already issued task.
You can delete the task by API though using TaskService.deleteTask() in a Java delegate service. But then you should check the exception if the user has selected and loaded the task but it is deleted before being submitted.

Re: Cancel vacation request

mikuc — Thu, 06 Nov 2014 07:57:26 GMT

Ok, but the employee should not be able to delete a task from his inbox(we are using out own bpminbox not activiti explorer)

Is there any way to trigger some event from another process? Like some interprocess communication by some signal or something like that?

Re: Cancel vacation request

tstephen — Thu, 06 Nov 2014 11:23:25 GMT

Actually BPMN signal events can do this quite nicely. Attached is a simplified version of your process focusing just on cancelling the review (files renamed).

Your own inbox tool will need to offer user interface for the user to cancel the request and send the message that will cancel the review.

I've not tried to implement this in Activiti but all the parts are supported.

Re: Cancel vacation request

mikuc — Mon, 29 Dec 2014 14:49:02 GMT

that works great, thank you very much!!!

Re: Cancel vacation request

edgarjoao — Mon, 18 May 2015 04:44:58 GMT

Hi tstephen,
What would be the best way of the requestor be able to cancel the request as well

Re: Cancel vacation request

edgarjoao — Thu, 04 Jun 2015 05:53:17 GMT

Follow your example it does works fine. But is there a way to avoid cancel all process instances created? Because right now if you create several instances of above model you'll cancel all process once you throws signal

Re: Cancel vacation request

edgarjoao — Thu, 18 Jun 2015 20:31:43 GMT

To restrict the scope of the signal event, add the (non-BPMN 2.0 standard!) scope attribute to the signal event definition:
<signal id="alertSignal" name="alert" activiti:scope="processInstance"/>