topic Re: Override Code in Alfresco Forum

Override Code

sp2 — Mon, 12 Nov 2018 07:06:58 GMT

I want to override setAssignee method of activiti/alfersco workflow.How Can I do that?I found that TaskEntity.java class is called during set assignee.Is this proper way to change existing setAssignee below method of TaskEntity.java? public void setAssignee(String assignee, boolean dispatchAssignme

Re: Override Code

afaust — Mon, 12 Nov 2018 09:11:40 GMT

Why do you want to change / override that method in the first place? Generally speaking it is not recommend / actually discouraged to make changes to the core classes / sources just to addess a business requirement. If you need some different behaviour from task assignment, you should implement a proper API facade / action wrapper around the things you need to adapt.

Re: Override Code

sp2 — Mon, 12 Nov 2018 09:17:10 GMT

How Can I Implement API facade / action wrapper for setAssignee()?

Can you provide some help on that?

Re: Override Code

afaust — Wed, 14 Nov 2018 09:01:32 GMT

I don't want to sound rude, but the facade pattern is a common software design pattern. Any help I would provide would basically just be a TL;DR summary of that pattern at this point...

Re: Override Code

sp2 — Sun, 09 Dec 2018 13:35:32 GMT

can you provide some more detail?

Re: Override Code

abbask01 — Tue, 15 Jan 2019 06:14:52 GMT

why not use taskListener instead? write your business logic on "assign" event then send the variable to the setAssignee

Re: Override Code

sp2 — Wed, 16 Jan 2019 04:35:00 GMT

This is not for particular workflow.it is for all workflow.

can you describe how can i achieve?

Re: Override Code

abbask01 — Wed, 16 Jan 2019 11:10:10 GMT

you can a listener before every task assignment. This thread might help you - Does engine have a hook to install an event listener?

update: use AbstractBpmnParseHandler instead of AbstractBpmnParseListener (with 5.22 engine)

example:

public class AssingmentExample extends AbstractBpmnParseHandler<UserTask> {
   @Override
   protected void executeParse(BpmnParse arg0, UserTask userTask) {
        // add your custom logic here
       userTask.setAssignee("// your assignee here");
   }
   @Override
   protected Class<? extends BaseElement> getHandledType() {
       // TODO Auto-generated method stub
       return null;
   }
}