Book Image

BPEL and Java Cookbook

By : Jurij Laznik
Book Image

BPEL and Java Cookbook

By: Jurij Laznik

Overview of this book

The Business Process Execution Language (BPEL) has become the de-facto standard for orchestrating web services. BPEL and web services are both clamped into Service-oriented Architecture (SOA). Development of efficient SOA composites too often requires usage of other technologies or languages, like Java. This Cookbook explains through the use of examples how to efficiently integrate BPEL with custom Java functionality.If you need to use BPEL programming to develop web services in SOA development, this book is for you.BPEL and Java Cookbook will show you how to efficiently integrate custom Java functionality into BPEL processes. Based on practical examples, this book shows you the solutions to a number of issues developers come across when designing SOA composite applications. The integration between the two technologies is shown two-fold; the book focuses on the ways that Java utilizes the BPEL and vice-versa.With this book, you will take a journey through a number of recipes that solve particular problems with developing SOA composite applications. Each chapter works on a different set of recipes in a specific area. The recipes cover the whole lifecycle of developing SOA composites: from specification, through design, testing and deployment. BPEL and Java Cookbook starts off with recipes that cover initiation of BPEL from Java and vice-versa. It then moves on to logging and tracing facilities, validation and transformation of BPEL servers, embedding of third-party Java libraries into BPEL. It also covers manipulation with variables in BPEL different techniques of Java code wrapping for web service usage and utilization of XML fa?ßades. After reading BPEL and Java Cookbook you will be able to circumvent many of the issues that developers experience during SOA composite application development.  
Table of Contents (18 chapters)
BPEL and Java Cookbook
Credits
About the Author
About the Reviewers
www.PacktPub.com
Preface
Index

Generating XML facade using ANT


This recipe explains how to generate XML facade with the use of the Apache ANT utility. We use the ANT scripts when we want to build or rebuild the XML facade in many iterations, for example, every time during nightly builds. Using ANT to build XML façade is very useful when XML definition changes are constantly in phases of development. With ANT, we can ensure continuous synchronization between XML and generated Java code.

The official ANT homepage along with detailed information on how to use it can be found at the following URL: http://ant.apache.org/.

Getting ready

By completing our previous recipe, we built up a JDeveloper project ready to create XML facade out of XML schema. To complete this recipe, we need to add ANT project technology to the project. We achieve this through the Project Properties dialog:

How to do it...

Here are the steps we need to take to create a project in JDeveloper for building XML façade with ANT:

  1. Create a new ANT build file by right...