Purview is a simple, lightweight, easily extensible validation API using Java 5 annotations. It provides full support for internationalization (i18n) and interpolation of dynamic values from validation messages using pluggable expression engines.

Purview is NOT a JSR 303 implementation and provides several features that JSR 303 does not including:

• Lots of already written validators.

• Full support for i18n with dynamic interpolation

• Rich typing of validation problems instead of simple booleans

• Not just for JavaBeans: Full support for validating ALL java language constructs including fields, classes, methods, and method parameters.

• Optional strict mode