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

How SeamGen helps with persistence


As we saw in the previous chapters, the SeamGen application is used for generating skeleton Seam applications. One of its benefits is that it will configure all of the aspects required for using JPA within a Seam application.

Let's take a look at the database-related questions that SeamGen asks when we set up a new project.

When we create a new project with SeamGen, we are asked several questions about the database and how we would want the application to interact with it.

Initially, SeamGen asks us which type of database would we want to use for our application. SeamGen has knowledge of HSQL, MySQL, Oracle, Postgress, Microsoft SQL Server, DB2, Sybase, EnterpriseDB, and H2. The default option is to use the embedded Hypersonic database that is supplied with all of the JBoss Application Servers.

./seam setup
<non-database questions omitted for brevity>
[input] What kind of database are you using? [hsql] ([hsql], mysql, oracle, postgres, mssql, db2, sybase...