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// $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); }





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