topic Re: RuntimeService API returning NULL in Alfresco Archive

RuntimeService API returning NULL

gurusri — Tue, 29 Sep 2015 10:54:14 GMT

1)For any workflow in Activiti that are running for a longer time, I would like to find the runtime details of the flow like what task has been completed so far and the status of the workflow.For that I want to know the process instance ids of all the running flows. I tried using RuntimeService API

Re: RuntimeService API returning NULL

martin_grofcik — Thu, 01 Oct 2015 06:26:52 GMT

Hi,

All the database tables that are provided are getting updated only at the end of the workflow.

The runtime tables in the database are not getting updated when a flow is running. It is updated only for user tasks and receive message tasks and not for service tasks.

Can be caused by not finished transaction. (Do you run process instance in one transaction?)
http://activiti.org/userguide/index.html#bpmnConcurrencyAndTransactions

Is there any possible ways that I could check the status of my workflow?

http://activiti.org/userguide/index.html#history

Regards
Martin

Re: RuntimeService API returning NULL

krishsan2k — Thu, 01 Oct 2015 11:33:50 GMT

Even I am facing the same problem when try to use the RuntimeService API's. It is not returning the process instance id's related to deployment id. Instead it returns an empty list

Re: RuntimeService API returning NULL

jbarrez — Mon, 05 Oct 2015 09:02:23 GMT

@krishsan2k: I'm not understanding your use case. Can you clarify?

Re: RuntimeService API returning NULL

msandoz — Tue, 06 Oct 2015 00:16:44 GMT

An example use case would be having an execution listener sending out a message to the UI to highlight the currently active node(s) and watch a flow execute live.

Re: RuntimeService API returning NULL

msandoz — Tue, 06 Oct 2015 03:29:45 GMT

i see now that you can get some of the info you need just by casting the event to an activiti activity event and then either forwarding the message or invoking the diagram generator.

Re: RuntimeService API returning NULL

jbarrez — Tue, 06 Oct 2015 08:27:23 GMT

@msandoz: indeed, that's correct.

Watching live is an interesting use case, because it could be that the process fails somewhere further down the path, but the event has already been sent…