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Bean Validation (JSR-303) API.
// $Id: ConstraintValidator.java 16159 2009-03-15 15:39:59Z epbernard $
/*
* JBoss, Home of Professional Open Source
* Copyright 2008, Red Hat Middleware LLC, and individual contributors
* by the @authors tag. See the copyright.txt in the distribution for a
* full listing of individual contributors.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
* http://www.apache.org/licenses/LICENSE-2.0
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package javax.validation;
import java.lang.annotation.Annotation;
/**
* Defines the logic to validate a given constraint A
* for a given object type T.
* Implementations must comply to the following restriction:
* T must resolve to a non parameterized type
*
* @author Emmanuel Bernard
* @author Hardy Ferentschik
*/
public interface ConstraintValidator {
/**
* Initialize the validator in preparation for isValid calls.
* The onstraint annotation for a given constraint declaration
* is passed.
*
* This method is guaranteed to be called before any of the other Constraint
* implementation methods
*
* @param constraintAnnotation annotation instance for a given constraint declaration
*/
void initialize(A constraintAnnotation);
/**
* Implement the validation logic.
* value
state must not be altered.
*
* @param value object to validate
* @param constraintValidatorContext context in which the constraint is evaluated
*
* @return false if value
does not pass the constraint
*/
boolean isValid(T value, ConstraintValidatorContext constraintValidatorContext);
}