/**
* @author liubo
*
*/
public interface Sourceable {
public void method();
}
package com.liubo.patterns.proxy;
/**
* @author liubo
*
*/
public class Source implements Sourceable {
public void method() {
System.out.println("the original method");
}
}
package com.liubo.patterns.proxy;
/**
* @author liubo
*
*/
public class Proxy implements Sourceable {
private Sourceable source;
/**
* @param source
*/
public Proxy(Sourceable source) {
super();
this.source = source;
}
public void method() {
before();
source.method();
after();
}
public void before() {
System.out.println("before proxy");
}
public void after() {
System.out.println("after proxy");
}
}
package com.liubo.patterns.proxy;
import org.junit.Test;
/**
* @author liubo
*
*/
public class ProxyTest {
@Test
public void testProxy() {
Sourceable source = new Source();
Sourceable sourceTest = new Proxy(source);
sourceTest.method();
}
}
原文：http://www.cnblogs.com/liubo6/p/4550892.html