4.抽象工厂模式(Abstract Factory)

介绍:抽象工厂模式是针对多个产品结构，它主要用于帮助用户一次创建多个不同的对象.

 

主要组成部分:抽象工厂类、实现抽象工厂类的具体类、抽象类和实现抽象类的具体类.

 

原理:UML示例---->

 

 

 

 

 

例子:

 

 

package com.abstractfactory;

public class AfricaBird extends Bird {
	
	@Override
	public void eat() {
		System.out.println("非洲小鸟会飞.");
	}

	@Override
	public void fly() {
		System.out.println("非洲小鸟吃.");
	}
}



package com.abstractfactory;

public class AfricaFactory implements Factory {

	public Bird createBird() {
		return new AfricaBird();
	}

	public Tiger createTiger() {
		return new  AfricaTiger();
	}
	
	

}




package com.abstractfactory;


public class AfricaTiger extends Tiger {

	@Override
	public void eat() {
		System.out.println("非老虎会吃.");
	}

	@Override
	public void run() {
		System.out.println("非老虎会跑.");
	}

	

}




package com.abstractfactory;


public interface Animal {
	public void eat();

}




package com.abstractfactory;

public class AsiaBird extends Bird {

	@Override
	public void eat() {
		System.out.println("亚洲小鸟会飞.");
	}

	@Override
	public void fly() {
		System.out.println("亚洲小鸟吃.");
	}

}





package com.abstractfactory;

public class AsiaFactory implements Factory{

	public Bird createBird() {
		
		return new AsiaBird();
		
	}

	public Tiger createTiger() {
		
		return new AsiaTiger();
	}

}





package com.abstractfactory;

public class AsiaTiger extends Tiger {

	@Override
	public void eat() {
		System.out.println("亚老虎会吃.");
	}

	@Override
	public void run() {
		System.out.println("亚洲老虎会跑"); 
	}

	
}




package com.abstractfactory;

public class Bird implements Animal{

	public void eat() {
		System.out.println("小鸟会吃.");
		
	}
	
	public void fly(){
		System.out.println("小鸟会飞.");
	}

}




package com.abstractfactory;

public class Client {
	
	public static void main(String[] args) {
		//亚洲动物
		Factory factory = new AsiaFactory();
		Tiger tiger = factory.createTiger();
		tiger.eat();
		Bird bird = factory.createBird();
		bird.eat();
		
		System.out.println("---------------------");
		
		//非洲动物
		factory = new AfricaFactory();
		tiger = factory.createTiger();
		tiger.eat();
		bird = factory.createBird();
		bird.eat();
		
	}

}




package com.abstractfactory;

/**
 * 
 * @Title: Factory.java
 * @Description: TODO(抽象工厂类)
 * @author [email protected] 
 * @date 2010-6-2 
 * @version V1.0
 */
public interface Factory {
	Tiger createTiger();
	Bird createBird();
}





package com.abstractfactory;

import com.factorymethod.Animal;

public class Tiger implements Animal {

	public void eat() {
		System.out.println("老虎会吃.");

	}
	
	public void run(){
		System.out.println("老虎会跑.");
	}

}