Java EE 6: Switching to CDI - Best resources
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25-09-2019 - |
Question
I have a small yet complete Java EE 6 application at hand.
The traditional annotations are being used: @Resource
, @EJB
, @Singleton
, @PostConstruct
, @PreDestroy
, @PersistenceContext
, @ManagedBean
, @ManagedProperty
, @RequestScope
, @ApplicationScope
,...
I would like to evaluate whether it makes sense to introduce CDI, and to standardize on a common strategy for dependency injection, bean lifecycle management, etc.
Question: Does anybody know about good articles, examples or manuals that transform traditional Java EE 6 annotations into CDI ones?
Solution
Does anybody know about good articles, examples or manuals that transform traditional Java EE 6 annotations into CDI ones?
Not stricly about a "transformation" but very good resources IMO:
The Dependency Injection in Java EE 6 series - By Reza Rahman
The CDI RefCard on DZone
A Hitchhikers Guide to Java EE 6 application setup series - By Nicklas Karlsson
The Introducing the Java EE 6 Platform series
Related question
OTHER TIPS
In my opinion, "switching" to CDI is no big deal. Just add a CDI implementation (like Weld) to your libraries, and start adding CDI Beans/Annotations to your app. You don't have to change your existing codebase. I would suggest reading the Weld reference.
If you plan to use JBoss CDI Implementation (Weld) you might be interested in this CDI with JBoss Weld article.
Following the line suggested I recommend reading :
In the same spirit, I like the following article:
Spring to Java EE – A Migration Experience
It's not about "Old-skool Java EE"-to-"CDI-based Java EE", but more about Spring-to-Java EE 6.
Off-topic, but an interesting read anyway.