CODEWITHSUNDEEP
javabean-validationhibernate-validator
Ronald
Ronald

Reputation: 2932

Java Bean validation: Combine two contstraints with OR on one field

I want to validate a field 'foo' against either of two constraints, i.e. something like this

@ConstraintA OR @ConstraintB
private String foo;

Is this possible?

Upvotes: 4

Views: 1312

Answers (1)

Hardy
Hardy

Reputation: 19109

This is possible with Hibernate Validator, but only using a Hibernate Validator specific extension. Using it is not standard conform to Bean Validation.

You will have to use boolean composition of constraints as described here - http://docs.jboss.org/hibernate/stable/validator/reference/en-US/html_single/#section-boolean-constraint-composition

You will need a "wrapper" constraint. Something like this:

@ConstraintComposition(OR)
@PConstraintA
@ConstraintB
@ReportAsSingleViolation
@Target({ METHOD, FIELD })
@Retention(RUNTIME)
@Constraint(validatedBy = { })
public @interface ConstraintAOrB {
    String message() default "{com.acme.ConstraintAOrB.message}";

    Class<?>[] groups() default { };

    Class<? extends Payload>[] payload() default { };
}

Upvotes: 4

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