Back in ’06, I wrote about JSR 303, which aims to bring Bean Validation to the JDK. Well to be specific, it defines a meta-data model and API for JavaBean validation. The spec. draft aslo states that it will not be specific to any one tier or programming model. It will specifically not be tied to either the web tier or the persistence tier, and will be available for both server-side application programming, as well as rich client Swing application developers.
I, along with others, who relied on an external validation module, thought this JSR was a great idea. However, for whatever reason, it didn’t progress as fast as some of us would have liked. Now, it seems to be back in gear. Emmanuel Bernard has made a sneek peek available. Take a look, and as he asks, give some feedback.