invocation

package com.feng.design.invocation;

public interface PersonBean {

String getName();

String getGender();

String getInterests();

int getHotOrNotRating();

void setName(String name);

void setGender(String gender);

void setInterests(String interest);

void setHotOrNotRaion(int rating);

}

package com.feng.design.invocation;

public class PersonBeanImpl implements PersonBean {

String name;

String gender;

String interests;

int rating;

int ratingCount = 0;

public PersonBeanImpl(String name, String gender, int rating, int ratingCount) {

this.name = name;

this.gender = gender;

this.rating = rating;

this.ratingCount = ratingCount;

}

@Override

public String getName() {

return name;

}

@Override

public String getGender() {

return gender;

}

@Override

public String getInterests() {

return interests;

}

@Override

public int getHotOrNotRating() {

if(ratingCount == 0) return 0;

return rating/ratingCount;

}

@Override

public void setName(String name) {

this.name = name;

}

@Override

public void setGender(String gender) {

this.gender = gender;

}

@Override

public void setInterests(String interest) {

this.interests = interest;

}

@Override

public void setHotOrNotRaion(int rating) {

this.rating += rating;

ratingCount ++;

}

}

package com.feng.design.invocation;

import java.lang.reflect.InvocationHandler;

import java.lang.reflect.Method;

public class Owner implements InvocationHandler {

PersonBean person;

public Owner(PersonBean person) {

this.person = person;

}

@Override

public Object invoke(Object proxy, Method method, Object[] args)

throws Throwable {

try {

if(method.getName().startsWith("get")) {

return method.invoke(person, args);

}else if(method.getName().equals("setHotOrNotRaion")) {

throw new IllegalAccessException("don't access");

}else if(method.getName().startsWith("set")) {

return method.invoke(person, args);

}

}catch(Exception e) {

e.printStackTrace();

}

return null;

}

}

package com.feng.design.invocation;

import java.lang.reflect.InvocationHandler;

import java.lang.reflect.Method;

public class Noner implements InvocationHandler {

PersonBean person;

public Noner(PersonBean person) {

this.person = person;

}

@Override

public Object invoke(Object proxy, Method method, Object[] args)

throws Throwable {

try {

if(method.getName().startsWith("get")) {

return method.invoke(person, args);

}else if(method.getName().equals("setHotOrNotRaion")) {

return method.invoke(person, args);

}else if(method.getName().startsWith("set")) {

throw new IllegalAccessException("don't access");

}

}catch(Exception e) {

e.printStackTrace();

}

return null;

}

}

package com.feng.design.invocation;

import java.lang.reflect.Proxy;

public class Test {

/**

* @param args

*/

public static void main(String[] args) {

// TODO Auto-generated method stub

PersonBean person = new PersonBeanImpl("james", "basketball", 12, 2);

PersonBean owner = getOwnerProxy(person);

System.out.println(owner.getName());

owner.setName("wade");

System.out.println(owner.getName());

owner.setHotOrNotRaion(4);

System.out.println("-------------------------------------");

PersonBean noner = getNoneProxy(person);

System.out.println(noner.getHotOrNotRating());

noner.setHotOrNotRaion(4);

System.out.println(noner.getHotOrNotRating());

System.out.println(noner.getName());

noner.setName("bosh");

System.out.println(noner.getName());

}

public static PersonBean getOwnerProxy(PersonBean person) {

return (PersonBean) Proxy.newProxyInstance(person.getClass().getClassLoader(), person.getClass().getInterfaces(), new Owner(person));

}

public static PersonBean getNoneProxy(PersonBean person) {

return (PersonBean) Proxy.newProxyInstance(person.getClass().getClassLoader(), person.getClass().getInterfaces(), new Noner(person));

}

}