Seems as if JSR 303 "Bean Validation" specification has been around for a while now. At least long enough to have a look for myself. Curious to learn both the possibilities and the limits of current implementations, I'll simply try out the reference implementation and explain what I'm doing in a step-by step manner.

Since my colleagues and I will probably introduce this framework into a project at my employer in the not so distant future, the choice of use cases for the framework presented here and their sequence most of the times will be driven by concrete problems we need to solve with a validation framework in that particular project.

This is work in progress, organized in a book-like form. I'll add more pages as I dive deeper into JSR 303. Subscribe to this site's RSS feed to stay updated.