Book Image

Apache CXF Web Service Development

By : Naveen Balani, Rajeev Hathi
Book Image

Apache CXF Web Service Development

By: Naveen Balani, Rajeev Hathi

Overview of this book

<p>Apache CXF framework helps you to develop a standards-based programming model and also provides a flexible deployment model for deploying web services. Developing SOAP and RESTful applications can be made easy by using Apache CXF framework. However, getting started with developing web services using the Apache CXF framework is not easy.<br /><br />This is the first book that gives details on how to use the Apache CXF framework for developing SOAP and REST web services. It is a hands-on practical guide that simplifies working with CXF framework as it covers all major aspects with real-world examples. The chapters cover the various CXF features in detail and each has systematic steps with practical, simple examples to implement these features on your web services. <br /><br />The book introduces the Apache CXF framework and its features such as Frontend API, Data Bindings, Transports, Spring-based configuration, and CXF tools. It also has chapters on SOAP and RESTful services. It will help you create RESTful services that support XML as well as the widely accepted Java Script Object Notation (JSON) format. It explains the components of CXF architecture that help developers customize the Apache CXF framework to suit the target application. The book covers both code-first and contract-first approaches for service deployment. You will see how to develop services in a flexible deployment model offered by CXF, unit test them in a stand-alone environment, and finally promote them in an application server environment.<br /><br />The instructions in this book will help developers to build their application according their requirements by using any of the frontends supported by Apache CXF framework. The various CXF frontend APIs covered in this book provide a wide variety of options in developing and deploying your application.<br /><br />The book introduces some advanced concepts such as Interceptors and features that will add extra capability to your service component. It will help you take advantage of different transport features offered by the CXF runtime such as HTTP, HTTP(S), and JMS protocols.<br />Finally, the book mentions various tools that help developers creating web services as well as creating Java and JavaScript-based web services clients which invoke a real-world .NET web service. These tools are standard batch files that can be easily executed from the Windows command shell by following the instructions in the book.</p>
Table of Contents (16 chapters)
Apache CXF Web Service Development
Credits
About the Authors
About the Reviewer
Preface
Index

Overview of aspect-oriented programming


Aspect-oriented programming, or AOP, is a programming technique that allows modularization of software by minimizing crosscutting concerns, or behavior that cuts across multiple modules (or classes) in a system, such as logging, security and transaction management. AOP and IoC are complementary technologies in that both apply a modular approach to complex problems in enterprise application development.

In order to understand the concept of AOP, let's take a simple example of logging functionality used in applications. In a typical object-oriented development approach you might implement logging functionality by putting logger statements in all your methods and Java classes. In an AOP approach you would instead modularize the logging concern and apply it declaratively to the components that require logging functionality, without the component knowing about the existence of the logging concern itself. In AOP terminology, the modular unit for crosscutting concern like logging, which is applied dynamically to modules, is referred to as Aspect.