June 2015
Intermediate to advanced
326 pages
7h 18m
English
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Creating custom workitem handlers
In order for jBPM to access services of other components in the application, we can use the workitem handler extension point provided by jBPM. Workitem handlers are used to specify domain-specific services to a BPMN activity. There are several inbuilt generic workitem handlers prebuilt in jBPM.
For creating a workitem handler, we have to implement the org.kie.runtime.instance.WorkItemHandler interface. This interface holds two methods to be implemented:
WorkItemManager.completeWorkItem(long workItemId, Map<String, Object> results)WorkItemManager.abortWorkItem(long workItemId)
A custom workitem has to be registered to the engine by using the workitem manager. For example, for registering a customer task, we can use ...
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O’Reilly covers everything we've got, with content to help us build a world-class technology community, upgrade the capabilities and competencies of our teams, and improve overall team performance as well as their engagement.Julian F.
I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
I’ve been on the O’Reilly platform for more than eight years. I use a couple of learning platforms, but I'm on O'Reilly more than anybody else. When you're there, you start learning. I'm never disappointed.Amir M.
I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.