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Spring / Spring Interview questions II

Explain Validator interface in Spring.

Spring features a Validator interface that can be used to validate objects. The Validator interface works with an Errors object so that while validating, validators can report validation failures to the Errors object.

The validation can be applied to any bean by implementing the following two methods of the org.springframework.validation. Validator interface.

supports (Class)- Can Validator validate instances of the supplied Class.

validate (Object, org.springframework.validation.Errors) - validates the given object and in case of validation errors, registers those with the provided Errors object.

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