/*
* Copyright 2002-2007 the original author or authors.
*
* 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 org.springframework.aop.support.annotation;
import java.lang.annotation.Annotation;
import java.lang.reflect.Method;
import org.springframework.aop.support.AopUtils;
import org.springframework.aop.support.StaticMethodMatcher;
import org.springframework.util.Assert;
/**
* Simple MethodMatcher that looks for a specific Java 5 annotation
* being present on a method (checking both the method on the invoked
* interface, if any, and the corresponding method on the target class).
*
* @author Juergen Hoeller
* @since 2.0
* @see AnnotationMatchingPointcut
*/
public class AnnotationMethodMatcher extends StaticMethodMatcher {
private final Class<? extends Annotation> annotationType;
/**
* Create a new AnnotationClassFilter for the given annotation type.
* @param annotationType the annotation type to look for
*/
public AnnotationMethodMatcher(Class<? extends Annotation> annotationType) {
Assert.notNull(annotationType, "Annotation type must not be null");
this.annotationType = annotationType;
}
public boolean matches(Method method, Class targetClass) {
if (method.isAnnotationPresent(this.annotationType)) {
return true;
}
// The method may be on an interface, so let's check on the target class as well.
Method specificMethod = AopUtils.getMostSpecificMethod(method, targetClass);
return (specificMethod != method && specificMethod.isAnnotationPresent(this.annotationType));
}
}