topic Get active process Instances with associated tasks in Alfresco Forum

Get active process Instances with associated tasks

sam_a — Mon, 22 May 2017 16:13:26 GMT

I have a requirement to get the list of all active instances along with the tasks under every instance. I did the below but unable to retrieve the tasks under the instance. Appreciate any pointers.//Get the list of all active process instancesList<ProcessInstance> processInstances = runtimeSer

Re: Get active process Instances with associated tasks

gdharley — Mon, 22 May 2017 19:54:47 GMT

Your execution entity is just a shell and will not be populated with all of the properties you need.

It will include the processInstanceId which will be enough for you to issue a task query based on the ProcessInstanceId:

List<task> myTasks = taskService.createTaskQuery.processInstanceId(entity.getId()).list();

You will then have a list of Task entities.

Just be aware, each of these queries ultimately results in a SQL call to the database so it could be potentially costly in high volume. There may be a better way of getting the same data if the instances share a common business key or process variables that you can do a direct Task query on and group by process Instance.

Hope this helps,
Greg

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Re: Get active process Instances with associated tasks

sam_a — Tue, 23 May 2017 03:32:54 GMT

Thanks Greg. I see that there is method processInstanceIdIn(List<String> processInstanceIds) which takes in list of processInstance ids. Is it possible to use the mentioned method to get the list of tasks across many instances and group them by processInstance?