[디자인 모델 깊이 이해] 헤드 퍼스트 - 어댑터 모드

/**
 *    :
 *      ，           ，       
 * 
 * 

 * Modify Information:
 * Author        Date          Description
 * ============ =========== ============================
 * DELL          2018 3 13     Create this file
 * 
* 
*/
public interface Duck {
public void quack();
public void fly();
}
칠면조 인터페이스:
  
  
/**
 *    
 * 
 * 

 * Modify Information:
 * Author        Date          Description
 * ============ =========== ============================
 * DELL          2018 3 13     Create this file
 * 
* 
*/
public interface Turkey {
public void  gobble();
public void  fly();
}
  
  
  
  
  
오리 한 마리 실현:
  
/**
 *    
 * 
 * 

 * Modify Information:
 * Author        Date          Description
 * ============ =========== ============================
 * DELL          2018 3 13     Create this file
 * 
* 
*/
public class MallardDuck implements Duck {
/**
* @see designPattern.adapter.Duck#quack()
*/
@Override
public void quack() {
System.out.println("quack");
}
/**
* @see designPattern.adapter.Duck#fly()
*/
@Override
public void fly() {
System.out.println("fly");
}
}
칠면조 한 마리 와
  
  
/**
 *    
 * 
 * 

 * Modify Information:
 * Author        Date          Description
 * ============ =========== ============================
 * DELL          2018 3 13     Create this file
 * 
* 
*/
public class WildTurkey implements Turkey {
/**
* @see designPattern.adapter.Turkey#gobble()
*/
@Override
public void gobble() {
System.out.println("gobble");
}
/**
* @see designPattern.adapter.Turkey#fly()
*/
@Override
public void fly() {
System.out.println("fly");
}
}
  
  
  
  
칠면조 생 성 을 위해 오리 어댑터 만 들 기:
  
/**
 *             ，    
 * 
 * 

 * Modify Information:
 * Author        Date          Description
 * ============ =========== ============================
 * DELL          2018 3 13     Create this file
 * 
* 
*/
public class DuckAdapter implements Turkey {
Duck duck;
Random rand;
public DuckAdapter(Duck duck) {
this.duck = duck;
rand = new Random();
}
/**
* @see designPattern.adapter.Duck#quack()
*/
@Override
public void gobble() {
duck.quack();
}
/**
* @see designPattern.adapter.Duck#fly()
*/
@Override
public void fly() {
if(rand.nextInt(5) == 0){
duck.fly();
}
}
}
  
  
  
  
  
이 어댑터 테스트:
  
/**
 *    
 * 
 * 

 * Modify Information:
 * Author        Date          Description
 * ============ =========== ============================
 * DELL          2018 3 13     Create this file
 * 
* 
*/
public class TestDuckAdapter {
/**
* @param args
*/
public static void main(String[] args) {
MallardDuck duck = new MallardDuck();
WildTurkey turkey = new WildTurkey();
/ / 오리 어댑터 가 오 리 를 칠면조 로 만든다
Turkey testTurkey = new DuckAdapter(duck);
System.out.println("duck do something ...");
duck.quack();
duck.fly();
System.out.println("turkey do something ...");
turkey.gobble();
turkey.fly();
System.out.println("duckadapter  change turkey to adapter ...");
testTurkey.gobble();
testTurkey.fly();
}
}