topic Re: How to modify collection on multi-instance. in Alfresco Forum

How to modify collection on multi-instance.

aakashsky — Fri, 08 Feb 2019 15:20:30 GMT

Hi Team, We are creating POC for a project where we will have 4 stages of approval. Let's say the 4 stages are1. Accountant2. Manager3. Owner4. Delivery HeadA process has started and right now the user task i.e. approval is at the Accountant level. The multi-instance will loop in a collection return

Re: How to modify collection on multi-instance.

abbask01 — Mon, 25 Feb 2019 07:17:41 GMT

You can use a boundary signal event on your multi-instance use task/sub-process, which will cancel all the currently running tasks and create new tasks for the updated collection.

below diagram might help

Note: you will have to call the signal (from your code) after you have updated your collection with runtimeService.signalEventReceived("yourSignalId", "yourProcessInstanceID");

Re: How to modify collection on multi-instance.

aakashsky — Mon, 25 Feb 2019 09:46:29 GMT

We don't want to replace it with the new collection, we want to update it and continue. E.g. I want to add a new resource into the collection or if we want to change the sequence of items in the collection.

Re: How to modify collection on multi-instance.

abbask01 — Mon, 25 Feb 2019 11:58:43 GMT

i don't think its possible to "update" values on the fly. the execution will simply replace your old list with a new one. anyways you won't be able to refer to the old list.