Bridge Design Pattern
2018-03-22 本文已影响12人
zheting
package com.sheting.design.pattern.demo6;
/**
* @Author SheTing
* @Time 2018/3/22 8:56
*/
public interface Color {
void applyColor();
}
package com.sheting.design.pattern.demo6;
/**
* @Author SheTing
* @Time 2018/3/22 8:59
*/
public class RedColor implements Color{
public void applyColor(){
System.out.println("red.");
}
}
package com.sheting.design.pattern.demo6;
/**
* @Author SheTing
* @Time 2018/3/22 8:59
*/
public class GreenColor implements Color {
public void applyColor(){
System.out.println("green.");
}
}
package com.sheting.design.pattern.demo6;
/**
* @Author SheTing
* @Time 2018/3/22 8:57
*/
public abstract class Shape {
//Composition - implementor
protected Color color;
//constructor with implementor as input argument
public Shape(Color c) {
this.color = c;
}
abstract public void applyColor();
}
package com.sheting.design.pattern.demo6;
/**
* @Author SheTing
* @Time 2018/3/22 8:58
*/
public class Triangle extends Shape{
public Triangle(Color c) {
super(c);
}
@Override
public void applyColor() {
System.out.print("Triangle filled with color ");
color.applyColor();
}
}
package com.sheting.design.pattern.demo6;
/**
* @Author SheTing
* @Time 2018/3/22 8:58
*/
public class Pentagon extends Shape{
public Pentagon(Color c) {
super(c);
}
@Override
public void applyColor() {
System.out.print("Pentagon filled with color ");
color.applyColor();
}
}
package com.sheting.design.pattern.demo6;
/**
* @Author SheTing
* @Time 2018/3/22 9:00
*/
public class BridgePatternTest {
public static void main(String[] args) {
Shape tri = new Triangle(new RedColor());
tri.applyColor();
Shape pent = new Pentagon(new GreenColor());
pent.applyColor();
}
}
