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 // $Id: 17620 2009-10-04 19:19:28Z hardy.ferentschik $
 * JBoss, Home of Professional Open Source
 * Copyright 2009, Red Hat, Inc. and/or its affiliates, 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
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* See the License for the specific language governing permissions and
* limitations under the License.
package javax.validation;
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
  • or generic parameters of T must be unbounded wildcard types

Emmanuel Bernard
Hardy Ferentschik
public interface ConstraintValidator<A extends Annotation, T> {
Initialize the validator in preparation for isValid calls. The constraint annotation for a given constraint declaration is passed.

This method is guaranteed to be called before any use of this instance for validation.

constraintAnnotation annotation instance for a given constraint declaration
	void initialize(A constraintAnnotation);

Implement the validation logic. The state of value must not be altered. This method can be accessed concurrently, thread-safety must be ensured by the implementation.

value object to validate
context context in which the constraint is evaluated
false if value does not pass the constraint
	boolean isValid(T valueConstraintValidatorContext context);
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