December 2014
Intermediate to advanced
434 pages
9h 48m
English
Content preview from Java EE 7 Development with WildFlyBecome an O’Reilly member and get unlimited access to this title plus top books and audiobooks from O’Reilly and nearly 200 top publishers, thousands of courses curated by job role, 150+ live events each month,
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Chapter 4. Learning Context and Dependency Injection
We saw that Chapter 3, Introducing Java EE 7 – EJBs, was challenging since we had to cover lots of ground, including Java Enterprise enhancements and a Maven-specific configuration. In this chapter, we'll discuss Contexts and Dependency Injection (CDI), which was added to the Java EE specification in Java EE 6 (starting from JSR 299). It provides several benefits to Java EE developers that were missing, such as allowing any JavaBean to be used as a JSF managed bean, including stateless and stateful session beans. You can find more information on CDI and the newest version of the specification itself (JSR 346) at http://www.cdi-spec.org/.
Some of the topics that will be covered in this chapter ...
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O’Reilly covers everything we've got, with content to help us build a world-class technology community, upgrade the capabilities and competencies of our teams, and improve overall team performance as well as their engagement.Julian F.
I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
I’ve been on the O’Reilly platform for more than eight years. I use a couple of learning platforms, but I'm on O'Reilly more than anybody else. When you're there, you start learning. I'm never disappointed.Amir M.
I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.