What does the @Valid annotation indicate in Spring?

Question

In the following example, the ScriptFile parameter is marked with an @Valid annotation.

What does @Valid annotation do?

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Answer 1

Just adding to the above answer, In a web application @valid is used where the bean to be validated is also annotated with validation annotations e.g. @NotNull, @Email(hibernate annotation) so when while getting input from user the values can be validated and binding result will have the validation results. bindingResult.hasErrors() will tell if any validation failed.