[转载] C#面向对象设计模式纵横谈——9. Composite组合模式

主讲：李建忠

来源：http://www.microsoft.com/china/msdn/events/webcasts/shared/webcast/consyscourse/CsharpOOD.aspx

 

 

Compositepublic interface IBox
{
    public abstract void Process();
    public abstract void Add(IBox box);
    public abstract void Remove(IBox box);
}

public class SingleBox:IBox
{
    public void Add(IBox box)
    {
        throw new UnSupportedException();
    }

    public void Remove(IBox box)
    {
        throw new UnSupportedException();
    }

    public void Process()
    {
        //Do process for myself
        //...
    }
}

public class ContainerBox:IBox
{
    ArrayList  list=null;

    public void Add()
    {
        throw new UnSupportedException();
    }

    public abstract void Remove()
    {
        throw new UnSupportedException();
    }

    public void Process()
    {
        //Do process for myself
        //...

        //Do process for the box in the list
        if(list!=null)
	{
	    foreach(IBox box in list)  //内部实现递归
	    {
		box.Process();
	    }
	}
    }
}

//客户代码
class App
{
    public static void Main()
    {
        IBox box=Factory.CreateBox();

	box.Process();
    }
}

 

转载于:https://www.cnblogs.com/6DAN_HUST/archive/2011/06/24/2088812.html