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

Overview of AXIOM and its features


Apache Axiom was designed to provide fast and better XML, which became the heart of any given XML-processing system. Axiom is a lightweight implementation built on deferred parsing technology. More concretely, it is an implementation of StAX (JSR 173), the standard streaming pull parser API. One of the main intentions of this was to provide a standard manipulation API. Thus the AXIOM object model can be manipulated flexibly as any other object model (for example, JDOM), but underneath, the objects will be created only when they are absolutely required (that is, on-demand building). This leads to less memory-intensive programming.

Looking at the features of AXIOM, deferred building can be considered as one of the best. In addition, providing deferred building was also one of the design goals. If you look at Axis1, one of the drawbacks it had was its XML representation. In Axis1, it uses Document Object Model (DOM) as the XML representation, thus needing...