Book Image

Seam 2.x Web Development

Book Image

Seam 2.x Web Development

Overview of this book

The Seam framework from JBoss allows developers to use JSF, Facelets, EJB, and JPA to write conversational web applications. But you will first have to learn how these standard technologies are integrated using Seam and how they can be built upon using additional Seam components. If you need to build a Java web application fast, but don't have time to learn all these complex features, then this book is for you. The book provides a practical approach to developing Seam applications highlighting good development practices. It provides a complete walk through to develop Web applications using Seam, Facelets, and RichFaces and explains how to deploy them to the JBoss Application Server. You can start using key aspects of the Seam framework immediately because this book builds on them chapter by chapter, finally ending with details of enterprise functionality such as PDF report generation and event frameworks. First, the book introduces you to the fundamentals of Seam applications, describing topics such as Injection, Outjection and Bijection. You will understand the Facelets framework, AJAX, database persistence, and advanced Seam concepts through the many examples in the book. The book takes a practical approach throughout to describing the technologies and tools involved. You will add functionality to Seam applications after you learn how to use the Seam Generator RAD tools and how to customize and fully test application functionality. Hints and tips are provided along the way of how to use Seam and the JBoss Application Server.
Table of Contents (17 chapters)
Seam 2.x Web Development
Credits
About the author
About the reviewers
Preface

Summary


In this chapter we've looked at AJAX and how it can be applied to Seam applications.

We've seen that there are two different AJAX technologies within the Seam framework: Seam Remoting and AJAX4JSF.

Seam Remoting allows methods to be defined such that they can be executed remotely via JavaScript. These methods are annotated with the @WebRemote annotation. We looked at how these methods can be invoked easily from within JavaScript by using the Seam.Component.getInstance() JavaScript method.

Debugging JavaScript can often be a tedious operation. However, we saw that Seam provides us with debugging tools to allow us to see what XML is passed between the server (Seam components) and the client (browser-based JacaScript). The Seam Remoting library also allows us to insert ad hoc debugging code into JavaScript in a similar fashion to how JDK logging or Apache Log4J does for Java code.

Finally, we took a brief look at AJAX4JSF and saw how it's an integral part of the RichFaces library and as...