DI_5_constructor : SamsungTV.JAVA/SonySpeaker.JAVA/TV.JAVA/TVUser.JAVA/applicationContext5.xml

package org.joonzis.DI_5_constructor;

public class SamsungTV implements TV{
	
	//SamsungTV  클래스의 볼륨 조절 기능을 SonySpeaker 클래스를이용
	private SonySpeaker sonyspeaker;
	
	
	public SamsungTV() {
		System.out.println("--> SamsungTV 객체(1)생성");
	}
	public SamsungTV(SonySpeaker speaker) { // 객체받는 생성자
		System.out.println("--> SamsungTV 객체(2)생성");
		this.sonyspeaker = speaker; // 객체 생성자
	}
	
   @Override
   public void powerOff() {
      System.out.println("--> SamsungTV 전원 끈다");
   }
   @Override
   public void powerOn() {
      System.out.println("--> SamsungTV 전원 켠다");
   }
   @Override
   public void volumeDown() {   
	   sonyspeaker.volumDown();
   }
   @Override
   public void volumeUp() {
	   sonyspeaker.volumUp();
   }
}

package org.joonzis.DI_5_constructor;

public class SonySpeaker {
	public SonySpeaker() {
		System.out.println("-->SonySpeaker 객체 생성");
	}
	public void volumUp() {
		System.out.println("-->SonySpeaker 소리 올린다");
	}
	public void volumDown() {
		System.out.println("-->SonySpeaker 소리 줄인다");
	}
	
}

package org.joonzis.DI_5_constructor;

public interface TV {
   public void powerOn();
   public void powerOff();
   public void volumeUp();
   public void volumeDown();
   
   
}

package org.joonzis.DI_5_constructor;

import org.springframework.context.support.AbstractApplicationContext;
import org.springframework.context.support.GenericXmlApplicationContext;

public class TVUser {
   public static void main(String[] args) {
      
	   //1.Spring 컨테이너 구동
	   AbstractApplicationContext ctx = 
			   new GenericXmlApplicationContext("applicationContext5.xml");
	   
	   
	   TV stv =(SamsungTV)ctx.getBean("stv");
	   stv.powerOff();
	   stv.powerOn();
	   stv.volumeDown();
	   stv.volumeUp();
   }
}

<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
	xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
	xmlns:context="http://www.springframework.org/schema/context"
	xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsd
		http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-3.1.xsd">
	
	<!-- 
		생성자 인젝션을 위해<constructor-arg/> 태그를 추가하고,
		생성자 인자로 전달할 객체의 아이디를 ref 속성으로 참조한다.
	 -->
	
	 <bean id="stv" class="org.joonzis.DI_5_constructor.SamsungTV">
	 	<constructor-arg ref="sony"/>
	 </bean>
	 <bean id="sony" class="org.joonzis.DI_5_constructor.SonySpeaker"></bean>
	 
	
</beans>