Book Image

Application Development for IBM WebSphere Process Server 7 and Enterprise Service Bus 7

Book Image

Application Development for IBM WebSphere Process Server 7 and Enterprise Service Bus 7

Overview of this book

By adopting an SOA approach in Business Process Management (BPM), you can make your application flexible, reusable, and adaptable to new developments. The SOA approach also gives you the potential to lower costs (from reuse), and increase revenue (from adaptability and flexibility). However, integrating basic SOA constructs (such as Process, Business Services, and Components) and core building blocks of BPM (such as Process Modeling and Enterprise Service Bus) in a real-world application can be challenging.This book introduces basic concepts of Business Integration, SOA Fundamentals, and SOA Programming Model and implements them in numerous examples. It guides you to building an Order Management application from scratch using the principles of Business Process Management and Service Oriented Architecture and using WebSphere Process Server (WPS) and WebSphere Enterprise Service Bus (WESB). The various detailed aspects, features, and capabilities of the product are conveyed through examplesWe begin with essential concepts on Business Integration, SOA Fundamentals and SOA Programming Model. Then we set up the development environment to build your first Hello Process and Hello Mediation applications.Gradually, we build an SOA-based Order Management Application. We cover important aspects and functions of WPS and WESB with numerous practical examples. We show how to analyze your application's business requirements and check if an SOA approach is appropriate for your project. Then you do a top-down decomposition of your application and identify its use cases, business processes, and services. Having built the SOA Application, we introduce you to various non-functional topics, including: Administration, Governance, Management, Monitoring, and Security. We also discuss deployment topologies for WPS and WESB, performance tuning, and recommended practices.
Table of Contents (20 chapters)
Application Development for IBM WebSphere Process Server 7 and Enterprise Service Bus 7
About the Authors
About the Reviewers
WID, WPS, and WESB Tips, Tricks, and Pointers

Creating the Hello Mediation Flow

In order to create Hello Mediation Flow,

  1. In a new WID workspace, create a new Integration Solution in WID, File | New | Integration Solution and name it Greeting_Solution.

  2. Import the GreetingLibrary that we created in the previous chapter

  3. Click on File | New and select Mediation Module from the context menu. Give the module the name HelloMediationModule and the name of the mediation component as GreetingsFlow as shown in the following figure:

  4. Specify the GreetingLibrary in the required libraries wizard screen and proceed to next.

  5. Make this mediation module part of the Greeting_Solution Integration Solution. Click on the Finish button.

Upon clicking Finish the mediation module gets created and the Assembly diagram opens for the new mediation module. On the canvas of this assembly diagram you will notice that the GreetingsFlow mediation flow component has been created. We will specify the HandleGreetingMessage as the interface on this mediation flow component.