org.hibernate.validator.internal.constraintvalidators.bv.notempty.NotEmptyValidatorForCollection Maven / Gradle / Ivy
/*
* Hibernate Validator, declare and validate application constraints
*
* License: Apache License, Version 2.0
* See the license.txt file in the root directory or .
*/
package org.hibernate.validator.internal.constraintvalidators.bv.notempty;
import java.util.Collection;
import jakarta.validation.ConstraintValidator;
import jakarta.validation.ConstraintValidatorContext;
import jakarta.validation.constraints.NotEmpty;
/**
* Check that the collection is not null and not empty.
*
* @author Guillaume Smet
*/
// as per the JLS, Collection is a subtype of Collection, so we need to explicitly reference
// Collection here to support having properties defined as Collection (see HV-1551)
@SuppressWarnings("rawtypes")
public class NotEmptyValidatorForCollection implements ConstraintValidator {
/**
* Checks the collection is not {@code null} and not empty.
*
* @param collection the collection to validate
* @param constraintValidatorContext context in which the constraint is evaluated
* @return returns {@code true} if the collection is not {@code null} and the collection is not empty
*/
@Override
public boolean isValid(Collection collection, ConstraintValidatorContext constraintValidatorContext) {
if ( collection == null ) {
return false;
}
return collection.size() > 0;
}
}