设计模式之桥接模式

package com.hml.bridge;

/**
 * 实现部分
 */
public abstract class Implementor {

    public abstract void operation();
}

package com.hml.bridge;

public class ConcreateImplementorA extends Implementor {

    @Override
    public void operation() {
        System.out.println("A");
    }

}

package com.hml.bridge;

public class ConcreateImplementorB extends Implementor {

    @Override
    public void operation() {
        System.out.println("B");
    }

}

package com.hml.bridge;

/**
 * 抽象部分
 */
public abstract class Abstraction {
    protected Implementor implementor;
    
    public Implementor getImplementor() {
        return implementor;
    }

    public void setImplementor(Implementor implementor) {
        this.implementor = implementor;
    }

    public abstract  void operation() ;
}

package com.hml.bridge;


public class RefinedAbstration extends Abstraction {

    @Override
    public void operation() {
        implementor.operation();
    }

}

package com.hml.bridge;

public class Test {
    public static void main(String[] args) {
      Abstraction abs = new RefinedAbstration();
      abs.setImplementor(new ConcreateImplementorA());
      abs.operation();
      
      abs.setImplementor(new ConcreateImplementorB());
      
      abs.operation();
    }
}