multiplyreturnvalue.java

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/*
 * Copyright 2002-2005 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.aspectj.autoproxy;

import org.aspectj.lang.ProceedingJoinPoint;
import org.aspectj.lang.annotation.Around;
import org.aspectj.lang.annotation.Aspect;

@Aspect
public class MultiplyReturnValue {
	
	private int multiple = 2;
	
	public int invocations;
	
	public void setMultiple(int multiple) {
		this.multiple = multiple;
	}
	
	public int getMultiple() {
		return this.multiple;
	}
	
	@Around("execution(int *.getAge())")
	public Object doubleReturnValue(ProceedingJoinPoint pjp) throws Throwable {
		++invocations;
		int result = (Integer) pjp.proceed();
		return result * this.multiple;
	}

}