The Contexts and Dependency Injection for the Java EE Platform (CDI), JSR 299 specification, supplies a set of services to Java EE components. These services allow Java EE components, including EJBs and JSF components to be injected and to interact by firing and observing events (Event driven design models). CDI also unifies and simplifies the EJB and JSF programming models to allow enterprise beans to replace JSF managed beans in a JSF application (similar to what SEAM embraces).
The new Bean Validation specification (JSR 303) makes validation simpler and reduces the duplication and errors. It provides a standard framework for validation, in which the same set of validation rules can be shared by all the layers of an application (web, controller, service, and domain layers).
I believe this feature will give completeness to the JSF spec and makes EJB 3.1.
Filed under: SDLC
