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Create Custom Validator

Explore how to create a custom validator in Spring Data JPA by implementing the ConstraintValidator interface. Learn to define a validation annotation and use it to enforce multi-word titles in your entity properties, ensuring robust input validation in your REST APIs.

Implement ConstraintValidator

The Javax framework provides the ConstraintValidator interface to create custom constraint classes. Suppose we want a Todo object to always have a multi-word title . We’ll need to validate the title ...