java：装饰者模式，节点流和处理流

interface Worker
{
public void dowork();
}

class Clean implements Worker
{
public void dowork(){
System.out.println("搞清洁");
}
}

class Aworker implements Worker
{
private Worker worker;　　　　//传进来的对象是woker的实现类
public Aworker(Worker worker){
this.worker = worker;
}
public void dowork(){
System.out.println("A公司");
worker.dowork();
}
}

class Test
{
public static void main(String args[]){
Clean clean = new Clean();
Aworker worker1 = new Aworker(clean);
worker1.dowork();
}
}