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JBoss Weld CDI for Java Platform

JBoss Weld CDI for Java Platform

By : Kenneth Finnigan
3.9 (12)
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JBoss Weld CDI for Java Platform

JBoss Weld CDI for Java Platform

3.9 (12)
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)
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JBoss Weld CDI for Java Platform
Credits
About the Author
About the Reviewer
www.PacktPub.com
Preface
1
Index

Summary


This chapter explored how dependency injection works with CDI containers through typesafe resolution, to help us understand bean types and qualifiers in determining which bean instance will be injected into an injection point. We covered some built-in qualifiers from the container before we created some of our own qualifiers, with and without members.

Injection points were explained with respect to typesafe resolution, before we looked at the metadata associated with an injection point and how that can be used when creating a bean instance.

We also covered creating alternatives and how they are activated within beans.xml, programmatically retrieving a bean instance at runtime for greater control, how Weld uses a proxy for injecting the non @Dependent beans, and how to resolve types that cannot be proxied.

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