8. Integrating jBPM with Enterprise Architecture | Mastering jBPM 5

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Mastering jBPM 5

By : Simone Fiorini, Arun V Gopalakrishnan

3 (6)

Mastering jBPM 5

3 (6)

By: Simone Fiorini, Arun V Gopalakrishnan

Overview of this book

If you are a designer or developer who wants to build and operate business process-centric applications, then this book is for you. Knowledge of the basic concepts of application development in Java will be helpful in following the concepts covered in the book, but is not necessary.

Preface

Preface

What this book covers

What you need for this book

Who this book is for

Conventions

Reader feedback

Customer support

Free Chapter

1. Business Process Modeling – Bridging Business and Technology

1. Business Process Modeling – Bridging Business and Technology

Business process management

The business process model and notation

Business process management as applied in industry

Design patterns in business process modeling

Introducing jBPM

The business logic integration platform

Summary

2. Building Your First BPM Application

2. Building Your First BPM Application

Installing the jBPM tool stack

Creating your first jBPM project

Embedding jBPM in a standalone Java application

Change management – updating deployed process definitions

Summary

3. Working with the Process Designer

3. Working with the Process Designer

Web-based tooling

Eclipse-based tooling

Summary

4. Operation Management

4. Operation Management

An overview of the KIE workbench, Git, and Maven

An overview of the kie-config-cli tool

KIE deployments

Managing jobs and asynchronous commands' execution

Process definition conversion

BAM

Summary

5. BPMN Constructs

5. BPMN Constructs

Parameters, variables, and data

Sequence flow

Gateways

Events

Activities

Summary

6. Core Architecture

6. Core Architecture

The KIE API

RuntimeManager service and the engine

KieSession

Human Task service

Audit and history logs

Persistence and transactions

Summary

7. Customizing and Extending jBPM

7. Customizing and Extending jBPM

Custom process nodes

jBPM identity management

jBPM serialization

Summary

8. Integrating jBPM with Enterprise Architecture

8. Integrating jBPM with Enterprise Architecture

Setting the context

Services provided by jBPM

Creating custom workitem handlers

Integrating with JEE

Integrating in SOA and EDA environments

jBPM as a remote service

Summary

9. jBPM in Production

9. jBPM in Production

Scalability

Availability

Security

Maintainability

Fault tolerance

Summary

A. The Future

A. The Future

Business programming

Convergence of enterprise architectures for real-time and predictive analytics

B. jBPM BPMN Constructs Reference

B. jBPM BPMN Constructs Reference

Tasks

Subprocesses

Start events

End events

Catching intermediate events

Throwing intermediate events

Gateways

Data objects

Swimlanes

Artifacts

Index

Index

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 the following:

ksession.getWorkItemManager().registerWorkItemHandler("Notification",
new NotificationWorkItemHandler());

In conclusion, we have discussed the provisions available in jBPM for integrating it with generic software architecture...

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