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Spring Framework example source code file (AnnotationMethodMatcher.java)

This example Spring Framework source code file (AnnotationMethodMatcher.java) is included in the DevDaily.com "Java Source Code Warehouse" project. The intent of this project is to help you "Learn Java by Example" TM.

Java - Spring Framework tags/keywords

annotation, annotation, annotationmethodmatcher, annotationmethodmatcher, class, class, method, reflection, staticmethodmatcher, staticmethodmatcher

The Spring Framework AnnotationMethodMatcher.java source code

/*
 * 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));
	}

}

Other Spring Framework examples (source code examples)

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