Book Image

JBoss Weld CDI for Java Platform

By : Kenneth Finnigan
Book Image

JBoss Weld CDI for Java Platform

By: Kenneth Finnigan

Overview of this book

CDI simplifies dependency injection for modern application developers by taking advantage of Java annotations and moving away from complex XML, while at the same time providing an extensible and powerful programming model. "JBoss Weld CDI for Java Platform" is a practical guide to CDI's dependency injection concepts using clear and easy-to-follow examples. This will help you take advantage of the power behind CDI, as well as providing a firm understanding of how to use it within your applications. "JBoss Weld CDI for Java Platform" covers all the major aspects of CDI, breaking it down into understandable pieces. This book will take you through many examples of how these concepts can be utilized, helping you get up and running quickly and painlessly. "JBoss Weld CDI for Java Platform" gives you an insight into the different scopes provided by CDI and the use cases for which each has been designed. You will learn everything about dependency injection, scopes, events, producers, and more from JBoss Weld CDI, as well as how producers can create new beans for consumption within your application. You will also learn how to build a real world application with CDI using JSF and AngularJS for different web interfaces.
Table of Contents (17 chapters)
JBoss Weld CDI for Java Platform
Credits
About the Author
About the Reviewer
www.PacktPub.com
Preface
Index

Apache Tomcat


As Apache Tomcat is only a Servlet container, there is no CDI implementation provided by default. This has both an upside and a downside to it. The upside is that we don't have to alter the default configuration and setup of Apache Tomcat in any way to use JBoss Weld with it. The downside is that all of our applications that utilize CDI need to bundle their own copy of JBoss Weld within WEB-INF/lib of the WAR.

If we don't already have Apache Tomcat installed, download the latest release from http://tomcat.apache.org/download-70.cgi and extract the contents of the ZIP. We will refer to the location where we extracted Apache Tomcat as CATALINA_HOME.

Note

At the time of publication, the most recent download for Apache Tomcat was 7.0.35.

We have a separate Maven profile in our example application for Apache Tomcat that will package weld-servlet.jar, along with a JSF implementation, into WEB-INF/lib of the archive. The profile also includes web.xml so that the servlet listener from...