结构模式之装饰器模式

package com.eric.design.decorator;
//单向适配器模式就是在主模块上接入另外一个模块，用继承法
//装饰器模式特点：主模块注入到扩展模块中
interface IRead{
	public void read();
}
class ReadStrFromFile implements IRead{//主模块
	public void read(){
		System.out.println("ReadStrFromFile.read()");
	}
}

class ReadStrFromNet implements IRead{//主模块
	public void read(){
		System.out.println("ReadStrFromNet.read()");
	}
}

class Convert{//扩展模块
	private IRead iRead;
	public void setIRead(IRead iRead){
		this.iRead = iRead;
	}
	public void convert(){
		iRead.read();
	}
}

public class Decorator {

	public static void main(String[] args) {
		// TODO Auto-generated method stub
		Convert convert = new Convert();
		//convert.setIRead(new ReadStrFromFile());
		convert.setIRead(new ReadStrFromNet());
		convert.convert();
	}

}