设计模式三—抽象工厂模式

软件设计

2017-05-23

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设计模式三—抽象工厂模式

一、定义

抽象工厂模式是工厂方法模式的进一步抽象。如果产品簇中只有一种产品，则退化为工厂方法模式。

二、原理图

三、代码实例

* 苹果和土豆是园丁1的杰作

* 葡萄和西红柿是园丁2的杰作

1、Fruit.java

public interface Fruit {
	/*
	 * 生长
	 * 收获
	 * 栽种
	 */
	public void grow();
	public void harvest();
	public void plant();
}

2、Apple.java

public class Apple implements Fruit {

    private int treeAge;
    
    public void grow() {
        System.out.println("苹果正在生长，，，");
    }

    
    public void harvest() {
        System.out.println("收获苹果");
    }

    
    public void plant() {
        System.out.println("栽种苹果");
    }


    public int getTreeAge() {
        return treeAge;
    }


    public void setTreeAge(int treeAge) {
        this.treeAge = treeAge;
    }
    
    

}

3、Grape.java

public class Grape implements Fruit {
    private boolean seedless;
    
    public void grow() {
        System.out.println("葡萄正在生长。。。");
    }

    public void harvest() {
        System.out.println("收获葡萄。");
    }

    public void plant() {
        System.out.println("栽种葡萄。");
    }

    public boolean isSeedless() {
        return seedless;
    }

    public void setSeedless(boolean seedless) {
        this.seedless = seedless;
    }
    
    

}

4、Vegetable.java

public interface Vegetable {
    /*
     * 生长
     * 收获
     * 栽种
     */
    public void grow();
    public void harvest();
    public void plant();
}

5、Potato.java

public class Potato implements Vegetable {

    public void grow() {
        System.out.println("土豆正在生长，，，");
    }

    
    public void harvest() {
        System.out.println("收获土豆");
    }

    
    public void plant() {
        System.out.println("栽种土豆");
    }

}

6、Tomato.java

public class Tomato implements Vegetable {

    public void grow() {
        System.out.println("西红柿正在生长，，，");
    }

    
    public void harvest() {
        System.out.println("收获西红柿");
    }

    
    public void plant() {
        System.out.println("栽种西红柿");
    }

}

7、Gardener.java

public interface Gardener {
    /*
     * 水果园丁
     * 蔬菜园丁
     * 水果蔬菜各两种
     * 建立水果工厂的方法
     */
    
    public Fruit factoryFruit();
    public Vegetable factoryVegetable();
    
    
}

8、ConcreteGardener1.java

public class ConcreteGardener11 implements Gardener {

    //等级为1的园丁生产的水果和蔬菜
    /*
     * 苹果和土豆是园丁1的杰作，或者说是一等产品
     * 葡萄和西红柿是园丁2的杰作，或者说是二等产品
     */
    public Fruit factoryFruit() {
        return new Apple();
    }

    public Vegetable factoryVegetable() {
        return new Potato();
    }

}

9、ConcreteGardener2.java

public class ConcreteGardener12 implements Gardener {

    //等级为2的园丁生产的水果和蔬菜
    /*
     * 苹果和土豆是园丁1的杰作，或者说是一等产品
     * 葡萄和西红柿是园丁2的杰作，或者说是二等产品
     */
    public Fruit factoryFruit() {
        return new Grape();
    }

    public Vegetable factoryVegetable() {
        return new Tomato();
    }

}

10、ClientDemo

public class ClientDemo {

    public static void main(String[] args) {
    
        /*
         * 苹果和土豆是园丁1的杰作，或者说是一等产品
         * 葡萄和西红柿是园丁2的杰作，或者说是二等产品
         */
        Gardener gardener1=new ConcreteGardener11();
        Gardener gardener2=new ConcreteGardener12();
        Fruit apple = gardener1.factoryFruit();
        Vegetable potato=gardener1.factoryVegetable();
        Fruit grape = gardener2.factoryFruit();
        Vegetable tomato=gardener2.factoryVegetable();
        
        apple.plant();
        apple.grow();
        apple.harvest();
        potato.plant();
        potato.grow();
        potato.harvest();
        grape.plant();
        grape.grow();
        grape.harvest();
        tomato.plant();
        tomato.grow();
        tomato.harvest();
        

    }

}