Book Image

Apache Axis2 Web Services, 2nd Edition

By : Deepal Jayasinghe, Afkham Azeez
Book Image

Apache Axis2 Web Services, 2nd Edition

By: Deepal Jayasinghe, Afkham Azeez

Overview of this book

<p>Web services are gaining popularity and have become one of the major techniques for application integration. Due to the flexibility and advantages of using web services, you want to enable Web service support to your applications. This book is your gateway to learning all you need to know about the Apache Axis2 web service framework and its hands on implementation. <br /><br />Apache Axis2 Web Services, 2nd Edition is your comprehensive guide to implementing this incredibly powerful framework in practice. It gives you precisely what you need to know to develop a detailed practical understanding of this popular, modular and reliable web service framework.<br /><br />This book starts with a short and relevant introduction about the Axis2 1.5 framework and then plunges you straight into its architectural model.</p> <p>Learn to use and develop your own modules. Write a services.xml file so efficiently that you'll be creating more complex applications (rather than just POJOs) in no time.</p> <p>Learn how straightforward it really is to turn a Java class into a web service in Axis2. Experiment with different types of sessions in Axis2. Learn different patterns of Enterprise deployment. Ensure reliability in your web service - a major concern in most enterprise applications - with minimum impact on performance.<br /><br />This book will journey you through all this and more, giving you exactly what you need to learn Axis2 1.5 in the easiest way possible and create secure, reliable, and easy-to-use web services efficiently and systematically.</p>
Table of Contents (22 chapters)
Apache Axis2 Web Services
Credits
About the Authors
About the Reviewers
www.PacktPub.com
Preface
15
Building a Secure Reliable Web Service
Index

Chapter 3. Axis 2 XML Model (AXIOM)

AXIOM stands for AXis2 Object Model and refers to the XML InfoSet model that was initially developed as part of Apache Axis2, but later it moved as a WS commons project so that projects other than Axis2 were able to benefit from it. XML InfoSet refers to the information included inside the XML, and for programmatic manipulation it is convenient to have a representation of this XML InfoSet in a language-specific manner. For an object-oriented language, the obvious choice is a model made up of objects. DOM and JDOM are two such XML models. AXIOM is conceptually similar to such an XML model by its external behavior, but deep down it is very much different. At the end of this chapter, you will understand the basics of AXIOM and the best practices to be followed while using AXIOM.

This chapter will cover:

  • AXIOM architecture

  • Pull parsing

  • Working with AXIOM

  • Advanced operations with AXIOM