package  
{
	public interface IUpdata 
	{
		function updata():void;
	}	
}

package 
{	
	import flash.display.Sprite;
	
	public class Parent extends Sprite implements IUpdata
	{
　　　　　　　　//子階層のクラス。　パブリックでParent.childで取ってこれるようにしてある
		public var child:Child;
		
		public function Parent():void
		{		
			child = new Child();
		}
		
		/* INTERFACE IUpdata */
		
		public function updata():void
		{
			trace("parent");
		}
	}
}

package 
{	
	import flash.display.Sprite;
	
	public class Child extends Sprite implements IUpdata
	{
		
		public function Child():void
		{		
		}
		
		/* INTERFACE IUpdata */
		public function updata():void
		{
			trace("child");
		}
		
	}
}

package

--中略--

var _arrayList:Array = [];

_arrayList.push(parent);
_arrayList.push(parent.child);

for each(var obj:IUpdata in _arrayList) 
{
	obj.updata();
}

--中略--


出力: parent
　　　child

// ActionScript 3.0クラス定義: Main
package {
	import flash.display.Sprite;
	import flash.events.Event;
	public class Main extends Sprite {
		public const UPDATA:String = "updata";
		public function Main() {
			new Parent(this);
			dispatchEvent(new Event(UPDATA));
		}
		public function addListener(listener:IUpdata):void {
			addEventListener(UPDATA, listener.updata);
		}
	}
}

// ActionScript 3.0クラス定義: Parent
package {
	import flash.display.Sprite;
	import flash.events.Event;
	public class Parent extends Sprite implements IUpdata {
		public var child:Child;
		// public function Parent():void {
		public function Parent(caller:Main):void {
			child = new Child();
			caller.addListener(this);
			caller.addListener(child);
		}
		/* INTERFACE IUpdata */
		// public function updata():void {
		public function updata(eventObject:Event):void {
			trace("parent");
		}
	}
}

// ActionScript 3.0クラス定義: Child
package {
	import flash.display.Sprite;
	import flash.events.Event;
	public class Child extends Sprite implements IUpdata {
		public function Child():void {
		}
		/* INTERFACE IUpdata */
		// public function updata():void {
		public function updata(eventObject:Event):void {
			trace("child");
		}
	}
}

package
{
	import flash.display.Sprite;

	public class Main extends Sprite
	{
		public function Main():void
		{
			var fishing = new Parent("フィッシング");
			fishing.addChild( new Child("磯釣り"));
			fishing.addChild( new Child("サビキ釣り"));
			
			var lure = new Parent("ルアー");
			lure.addChild( new Child("バス釣り"));
			lure.addChild( new Child("シイラ釣り"));
			
			fishing.addChild( lure );
			
			var manga = new Parent("漫画");
			
			var jump = new Parent("週間少年ジャンプ");
			jump.addChild( new Child("ドラゴンボール"));
			jump.addChild( new Child("北斗の拳"));
			
			manga.addChild( jump );
			
 			var sunday = new Parent("週間少年サンデー");
 			var magazine = new Parent("週間少年マガジン");
			manga.addChild( sunday );
			manga.addChild( magazine );
			
			var hobby = new Parent("趣味");
			
			hobby.addChild( fishing );
			hobby.addChild( manga );
			
			var mydoc = new Parent("マイドキュメント");
			mydoc.addChild( hobby );
			mydoc.addChild( new Parent("仕事"));
			mydoc.addChild( new Parent("家計簿"));
			mydoc.addChild( new Parent("音楽"));
			
			mydoc.print();
		}
	}
}

interface Print
{
	function print( str:String = ""):void;
}

class Child implements Print
{
	protected var name:String;
	
	public function Child( name:String ):void
	{
		this.name = name;
	}
	
	public function print( str:String = ""):void
	{
		trace( str + "/" + name );
	}
}

class Parent extends Child
{
	protected var children:Array;
	
	public function Parent( name:String ):void
	{
		super( name );
		
		children = new Array();
	}

	public function addChild( child:Child ):void
	{
		children.push( child );
	}
	
	public override function print( str:String = "" ):void
	{
		if( children.length != 0 )
		{
			for each( var child in children )
			{
				child.print( str + "/" + name );
			}
		}
		else
		{
			super.print( str );
		}
	}
}