Builder

Builder Pattern:可以将一个产品的内部表象与产品的生成过程分割开来，从而使一个建造过程生成具有不同的内部表象的产品对象。

Mobile.java

 

package com.flyingh.product;

import java.util.List;

public class Mobile {
	private List<String> list;

	public Mobile(List<String> list) {
		super();
		this.list = list;
	}

	public List<String> getList() {
		return list;
	}

	public void setList(List<String> list) {
		this.list = list;
	}

	@Override
	public String toString() {
		// TODO Auto-generated method stub
		StringBuilder sb = new StringBuilder("手机拥有功能：[");
		for (String str : list) {
			sb.append(str).append(",");
		}
		sb.deleteCharAt(sb.length() - 1).append("]");
		return sb.toString();
	}

}

 

 MobileBuilder.java

 

package com.flyingh.ibuilder;

import com.flyingh.product.Mobile;

public interface MobileBuilder {
	void addDialFunction();

	void addMp3Function();

	void addMp4Function();

	void addSMSFunction();

	void addMMSFunction();

	void addJavaFunction();

	void addPhotoFunction();

	void addEBookFunction();

	void addRadioFunction();

	void addGameFunction();

	Mobile getMobile();
}

 

ConcreteMobileBuilder.java

package com.flyingh.builder;

import java.util.ArrayList;
import java.util.List;

import com.flyingh.ibuilder.MobileBuilder;
import com.flyingh.product.Mobile;

public class ConcreteMobileBuilder implements MobileBuilder {
	private List<String> list = new ArrayList<String>();

	@Override
	public void addDialFunction() {
		// TODO Auto-generated method stub
		System.out.println("添加打电话功能！");
		list.add("打电话");
	}

	@Override
	public void addMp3Function() {
		// TODO Auto-generated method stub
		System.out.println("添加Mp3功能！");
		list.add("Mp3");
	}

	@Override
	public void addMp4Function() {
		// TODO Auto-generated method stub
		System.out.println("添加Mp4功能！");
		list.add("Mp4");
	}

	@Override
	public void addSMSFunction() {
		// TODO Auto-generated method stub
		System.out.println("添加发短信功能！");
		list.add("发短信");
	}

	@Override
	public void addMMSFunction() {
		// TODO Auto-generated method stub
		System.out.println("添加彩信功能！");
		list.add("彩信");
	}

	@Override
	public void addJavaFunction() {
		// TODO Auto-generated method stub
		System.out.println("添加Java功能！");
		list.add("Java");
	}

	@Override
	public void addPhotoFunction() {
		// TODO Auto-generated method stub
		System.out.println("添加照相机功能！");
		list.add("照相机");
	}

	@Override
	public void addEBookFunction() {
		// TODO Auto-generated method stub
		System.out.println("添加电子书功能！");
		list.add("电子书");
	}

	@Override
	public void addRadioFunction() {
		// TODO Auto-generated method stub
		System.out.println("添加收音机功能！");
		list.add("收音机");
	}

	@Override
	public void addGameFunction() {
		// TODO Auto-generated method stub
		System.out.println("添加游戏功能！");
		list.add("游戏");
	}

	@Override
	public Mobile getMobile() {
		// TODO Auto-generated method stub
		return new Mobile(list);
	}

} 

  Director.java

 

package com.flyingh.idirector;

public interface Director {
	void construct();
}

 

 ConcreteDirectorA.java

 

package com.flyingh.director;

import com.flyingh.ibuilder.MobileBuilder;
import com.flyingh.idirector.Director;

public class ConcreteDirectorA implements Director {
	private MobileBuilder builder;

	public ConcreteDirectorA(MobileBuilder builder) {
		super();
		this.builder = builder;
	}

	public void construct() {
		builder.addDialFunction();
		builder.addSMSFunction();
		builder.addMMSFunction();
		builder.addMp3Function();
		builder.addEBookFunction();
		builder.addJavaFunction();
	}
}

 

ConcreteDirectorB.java

package com.flyingh.director;

import com.flyingh.ibuilder.MobileBuilder;
import com.flyingh.idirector.Director;

public class ConcreteDirectorB implements Director {
	private MobileBuilder builder;

	public ConcreteDirectorB(MobileBuilder builder) {
		super();
		this.builder = builder;
	}

	public void construct() {
		builder.addDialFunction();
		builder.addSMSFunction();
		builder.addMMSFunction();
		builder.addMp3Function();
		builder.addMp4Function();
		builder.addGameFunction();
		builder.addJavaFunction();
		builder.addEBookFunction();
		builder.addRadioFunction();
	}
} 

  Client.java

 

package com.flyingh.client;

import com.flyingh.builder.ConcreteMobileBuilder;
import com.flyingh.director.ConcreteDirectorA;
import com.flyingh.director.ConcreteDirectorB;
import com.flyingh.ibuilder.MobileBuilder;
import com.flyingh.idirector.Director;
import com.flyingh.product.Mobile;

public class Client {
	public static void main(String[] args) {
		MobileBuilder builder = new ConcreteMobileBuilder();
		Director director = new ConcreteDirectorA(builder);
		director.construct();
		Mobile mobile = builder.getMobile();
		System.out.println(mobile);
		System.out.println("*****************");
		builder = new ConcreteMobileBuilder();
		director = new ConcreteDirectorB(builder);
		director.construct();
		mobile = builder.getMobile();
		System.out.println(mobile);
	}
}

 

 程序运行结果如下：

 

添加打电话功能！
添加发短信功能！
添加彩信功能！
添加Mp3功能！
添加电子书功能！
添加Java功能！
手机拥有功能：[打电话,发短信,彩信,Mp3,电子书,Java]
*****************
添加打电话功能！
添加发短信功能！
添加彩信功能！
添加Mp3功能！
添加Mp4功能！
添加游戏功能！
添加Java功能！
添加电子书功能！
添加收音机功能！
手机拥有功能：[打电话,发短信,彩信,Mp3,Mp4,游戏,Java,电子书,收音机]