java 设计模式学习笔记十 bridge桥模式

bridge桥模式
将抽象和行为划分开来，各自独立但能动态结合


抽象的接口
/**
 * 咖啡抽象类
 * 
 * @time 下午09:14:27
 * @author retacn yue
 * @Email [e-mail]
 */
public abstract class Coffee {
        //
CoffeeImp coffeeImp;
        //有木有点DI的感觉，有木有
public void setCoffeeImp() {
this.coffeeImp = CoffeeImpSingleton.getTheCoffeeImp();
}


        public CoffeeImp getCoffeeImp() {
return coffeeImp;
}


/**
* 冲咖啡
*/
public abstract void pourCoffee();
}




/**
 * 中杯
 * 
 * @time 下午09:29:11
 * @author retacn yue
 * @Email [e-mail]
 */
public class MediumCoffee extends Coffee {


/**
* 构造器
*/
public MediumCoffee() {
// 是否添加咖啡
setCoffeeImp();
}


/**
* 冲咖啡
*/
@Override
public void pourCoffee() {
CoffeeImp coffeeImp = this.getCoffeeImp();
for (int i = 0; i < 2; i++) {
coffeeImp.pourCoffeeImp();
}
}


}


/**
 * 大杯咖啡
 * 
 * @time 下午09:37:03
 * @author retacn yue
 * @Email [e-mail]
 */
public class SuperSizeCoffee extends Coffee {


/**
* 构造器
*/
public SuperSizeCoffee() {
// 是否加奶
setCoffeeImp();
}


/**
* 冲咖啡
*/
@Override
public void pourCoffee() {
CoffeeImp coffeeImp = this.getCoffeeImp();
for (int i = 0; i < 5; i++) {
coffeeImp.pourCoffeeImp();
}
}


}
=========================================================================


行为接口：


/**
 * coffee是否加奶
 * 
 * @time 下午09:18:41
 * @author retacn yue
 * @Email [e-mail]
 */
public abstract class CoffeeImp {
public abstract void pourCoffeeImp();
}




/**
 * 不加奶
 * 
 * @time 下午09:45:20
 * @author retacn yue
 * @Email [e-mail]
 */
public class FragrantCoffeeImp extends CoffeeImp {


/**
* 构造器
*/
public FragrantCoffeeImp() {
}


/**
* 不加奶冲咖啡
*/
@Override
public void pourCoffeeImp() {
System.out.println("啥也木加怀！详香连！");
}


}






/**
 * 加奶
 * 
 * @time 下午09:41:56
 * @author retacn yue
 * @Email [e-mail]
 */
public class MilkCoffeeImp extends CoffeeImp {


/**
* 构造器
*/
public MilkCoffeeImp() {
}


/**
* 加奶冲
*/
@Override
public void pourCoffeeImp() {
System.out.println("加新鲜人初乳!");
}
}








/**
 * 控制是否加奶
 * 
 * @time 下午09:23:06
 * @author retacn yue
 * @Email [e-mail]
 */
@SuppressWarnings("static-access")
public class CoffeeImpSingleton {
private static CoffeeImp coffeeImp;


public CoffeeImpSingleton(CoffeeImp coffeeImp) {
this.coffeeImp = coffeeImp;
}


public static CoffeeImp getTheCoffeeImp() {
return coffeeImp;


}
}
===========================================================================
/**
 * 测试冲咖啡
 * 
 * @time 下午09:49:05
 * @author retacn yue
 * @Email [e-mail]
 */
public class TestPourCoffee {


/**
* @param args
*/
@SuppressWarnings("unused")
public static void main(String[] args) {
// 加奶
// CoffeeImpSingleton singleton = new CoffeeImpSingleton(new
// MilkCoffeeImp());
// 不加奶
CoffeeImpSingleton coffeeImpSingleton = new CoffeeImpSingleton


(new FragrantCoffeeImp());
// 中杯加奶
// MediumCoffee mediumCoffee = new MediumCoffee();
// mediumCoffee.pourCoffee();


// 大杯加奶
SuperSizeCoffee superSizeCoffee = new SuperSizeCoffee();
superSizeCoffee.pourCoffee();
}
}