建造者模式解决盖房问题

• 代码实现

package com.atguigu.builder.improve;
//产品->Product
public class House {
	
	private String baise;
	
	private String wall;
	
	private String roofed;
	
	public String getBaise() {
		return baise;
	}
	
	public void setBaise(String baise) {
		this.baise = baise;
	}
	
	public String getWall() {
		return wall;
	}
	
	public void setWall(String wall) {
		this.wall = wall;
	}
	
	public String getRoofed() {
		return roofed;
	}
	
	public void setRoofed(String roofed) {
		this.roofed = roofed;
	}
	
}

package com.atguigu.builder.improve;
// 抽象的建造者
public abstract class HouseBuilder {

	protected House house = new House();
	
	//将建造的流程写好, 抽象的方法
	public abstract void buildBasic();
	
	public abstract void buildWalls();
	
	public abstract void roofed();
	
	//建造房子好， 将产品(房子) 返回
	public House buildHouse() {
		return house;
	}
	
}

package com.atguigu.builder.improve;
public class HighBuilding extends HouseBuilder {

	@Override
	public void buildBasic() {
		// TODO Auto-generated method stub
		System.out.println(" 高楼的打地基100米 ");
	}

	@Override
	public void buildWalls() {
		// TODO Auto-generated method stub
		System.out.println(" 高楼的砌墙20cm ");
	}

	@Override
	public void roofed() {
		// TODO Auto-generated method stub
		System.out.println(" 高楼的透明屋顶 ");
	}

}

package com.atguigu.builder.improve;
public class CommonHouse extends HouseBuilder {

	@Override
	public void buildBasic() {
		// TODO Auto-generated method stub
		System.out.println(" 普通房子打地基5米 ");
	}

	@Override
	public void buildWalls() {
		// TODO Auto-generated method stub
		System.out.println(" 普通房子砌墙10cm ");
	}

	@Override
	public void roofed() {
		// TODO Auto-generated method stub
		System.out.println(" 普通房子屋顶 ");
	}

}

package com.atguigu.builder.improve;
//指挥者，这里去指定制作流程，返回产品
public class HouseDirector {
	
	HouseBuilder houseBuilder = null;

	//构造器传入 houseBuilder
	public HouseDirector(HouseBuilder houseBuilder) {
		this.houseBuilder = houseBuilder;
	}

	//通过setter 传入 houseBuilder
	public void setHouseBuilder(HouseBuilder houseBuilder) {
		this.houseBuilder = houseBuilder;
	}
	
	//如何处理建造房子的流程，交给指挥者
	public House constructHouse() {
		houseBuilder.buildBasic();
		houseBuilder.buildWalls();
		houseBuilder.roofed();
		return houseBuilder.buildHouse();
	}
	
}

package com.atguigu.builder.improve;
public class Client {
	
	public static void main(String[] args) {
		//盖普通房子
		CommonHouse commonHouse = new CommonHouse();
		//准备创建房子的指挥者
		HouseDirector houseDirector = new HouseDirector(commonHouse);
		//完成盖房子，返回产品(普通房子)
		House house = houseDirector.constructHouse();
		System.out.println("--------------------------");
		//盖高楼
		HighBuilding highBuilding = new HighBuilding();
		//重置建造者
		houseDirector.setHouseBuilder(highBuilding);
		//完成盖房子，返回产品(高楼)
		houseDirector.constructHouse();
	}
	
}