This is an early implementation of JSR 303 (Bean Validation), a specification of the Java API for JavaBean validation in Java EE and Java SE.

The technical objective is to provide a class level constraint declaration and validation facility for the Java application developer, as well as a constraint metadata repository and query API.

This implementation is based on the validation framework of agimatec GmbH, that is in production for more than a year and offers additional features, like XML-based extensible metadata, code generation (JSON for AJAX applications), JSR303 annotation support.

For more information refer to the Wiki at Overview