topic 'Process Instance Variable' and 'Task Local Variable' in Alfresco Archive

'Process Instance Variable' and 'Task Local Variable'

lojian — Fri, 14 Jan 2011 07:55:32 GMT

Does anyone how the differences between "Process Instance Variable" and "Task Local Variable"?

Re: 'Process Instance Variable' and 'Task Local Variable'

frederikherema1 — Fri, 14 Jan 2011 08:40:54 GMT

Task variables are only available within the task itself. Once the task is complete, they are gone (although present in history if configured to historyLevel FULL).

Setting process variables from API:


runtimeService.setVariable(processInstance.getId(), "varName", "value");

Setting task variables from API:


taskService.setVariableLocal(task.getId(), "varName", "value");

Re: 'Process Instance Variable' and 'Task Local Variable'

lojian — Fri, 14 Jan 2011 09:31:48 GMT

Got it! Thanks a lot!

I suggest write these concept into documentation. 🙂 Maybe I could help.

Re: 'Process Instance Variable' and 'Task Local Variable'

pgrec — Wed, 16 Feb 2011 18:08:21 GMT

Hi. Are Local variables accessible in Forms (e.g. as temporary variable which will be created on create task, or processed on exit task )? I miss this feature.

Re: 'Process Instance Variable' and 'Task Local Variable'

jbarrez — Thu, 17 Feb 2011 09:00:16 GMT

You should take a look at 'form properties', that's exactly what you probably need http://activiti.org/userguide/index.html#formProperties

Re: 'Process Instance Variable' and 'Task Local Variable'

jorell — Wed, 28 Aug 2013 22:17:47 GMT

How would we specify task local variables in the bpmn? I read somewhere else on this forum that io specs are not supported, is that true?

Re: 'Process Instance Variable' and 'Task Local Variable'

frederikherema1 — Wed, 04 Sep 2013 09:15:00 GMT

If you want task-local variables, use a taskListener (create) to get access to the DelegateTask, which supports setVariableLocal()…

Re: 'Process Instance Variable' and 'Task Local Variable'

santoshkumar — Thu, 25 Feb 2016 12:50:41 GMT

How do I get ProcessInstance Variable in expression

Re: 'Process Instance Variable' and 'Task Local Variable'

tgebeyehu — Mon, 14 Mar 2016 05:19:29 GMT

${myVar}