设计模式(Design Pattern) - 创建型模式(Creational Pattern) - 抽象工厂模式(Abstract Factory)
比工厂模式更抽象的方法,效果:增加功能不必需改历史代码。
1、说明:
(1)Sender 接口;(同工厂模式)
(2)MailSender 实现类;(同工厂模式)
(3)SmsSender 实现类;(同工厂模式)
(4)Factory 工厂.接口;
(5)MailFactory 工厂实现类;
(6)SmsFactory 工厂实现类。
2、Java实现,代码如下:
(1)Sender
package com.java.designPattern.abastractFactory;
/**
* 接口
*
*/
public interface Sender {
public void send();
}
(2)MailSender
package com.java.designPattern.abastractFactory;
/**
* 实现类
*
*/
public class MailSender implements Sender {
@Override
public void send() {
System.out.println("mail send !");
}
}
(3)SmsSender
package com.java.designPattern.abastractFactory;
/**
* 实现类
*
*/
public class SmsSender implements Sender {
@Override
public void send() {
System.out.println("sms send !");
}
}
(4)Factory
package com.java.designPattern.abastractFactory;
/**
* 抽象工厂
*
*/
public interface Factory {
public Sender produce();
}
(5)MailFactory
package com.java.designPattern.abastractFactory;
/**
* 工厂实现类
*
*/
public class MailFactory implements Factory {
@Override
public Sender produce() {
return new MailSender();
}
}
(6)SmsFactory
package com.java.designPattern.abastractFactory;
/**
* 工厂实现类
*
*/
public class SmsFactory implements Factory {
@Override
public Sender produce() {
return new SmsSender();
}
}
(7)Test
package com.java.designPattern.abastractFactory;
/**
* 测试类
*
*/
public class Test {
public static void main(String[] args) {
Factory mailFactory = new MailFactory();
Sender mailSender = mailFactory.produce();
mailSender.send();
Factory smsFactory = new SmsFactory();
Sender smsSender = smsFactory.produce();
smsSender.send();
}
}
输出:
mail send !
sms send !