Introduction

The Bean Validation supports user input, or domain objects validation:

• Lets you express constraints on object models via annotations
• There are built-in constraints
• You can write custom constraints in an extensible way
• Provides the APIs to validate objects and object graphs
• Provides the APIs to validate parameters and return values of methods and constructors
• Reports the set of violations (localized)
• Runs in Java SE
• Integrated with Spring Framework (Spring provides Bean Validation provider)
• Hibernate Validator is reference implementation of JSR380
• Refer Spring documentation pages for more info