springAOP : AfterReturning

Employee.java

=========

package com.mohan;

public  class Employee{

          public int m(){System.out.println("m() method invoked");return 2;}

          public int k(){System.out.println("k() method invoked");return 3;}

}

      

TrackEmployee.java

=============

package com.mohan;

import org.aspectj.lang.JoinPoint;

public class TrackEmployee{

          public void myadvice(JoinPoint jp,Object result)//it is advice (after advice)

          {

            System.out.println("additional concern");

            System.out.println("Method Signature: "  + jp.getSignature());

            System.out.println("Result in advice: "+result);

            System.out.println("end of after returning advice...");

          }

}

Beans.xml

=======

<?xml version="1.0" encoding="UTF-8"?>

<beans xmlns="http://www.springframework.org/schema/beans"

          xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"

          xmlns:aop="http://www.springframework.org/schema/aop"

          xsi:schemaLocation="http://www.springframework.org/schema/beans

          http://www.springframework.org/schema/beans/spring-beans-3.0.xsd

          http://www.springframework.org/schema/aop

          http://www.springframework.org/schema/aop/spring-aop-3.0.xsd ">

<aop:aspectj-autoproxy />

<bean id="opBean" class="com.mohan.Employee">       </bean>      

<bean id="trackAspect" class="com.mohan.TrackEmployee"></bean>          

<aop:config>

  <aop:aspect id="myaspect" ref="trackAspect" >

     <!-- @AfterReturning -->

     <aop:pointcut id="pointCutAfterReturning"      expression="execution(* com.mohan.Employee.*(..))" />

     <aop:after-returning method="myadvice" returning="result" pointcut-ref="pointCutAfterReturning" />

  </aop:aspect>

</aop:config>

         

</beans>

Test.java

======

package com.mohan;

import org.springframework.context.ApplicationContext;

import org.springframework.context.support.ClassPathXmlApplicationContext;

public class Test{

          public static void main(String[] args){

            ApplicationContext context = new ClassPathXmlApplicationContext("Beans.xml");

            Employee e = (Employee) context.getBean("opBean");

            System.out.println("calling m...");

            System.out.println(e.m());

            System.out.println("calling k...");

            System.out.println(e.k());

          }

}