Robotlegs Mediator without a view reference

Box.as

package
{
	import flash.display.Graphics;
	import flash.display.Sprite;
	
	public class Box extends Sprite
	{
		public function Box()
		{
			super();
			
			draw(0x000000);
		}
		
		public function draw(color:uint):void
		{
			var g:Graphics = graphics;
			g.clear();
			g.beginFill(color);
			g.drawRect(0, 0, 100, 100);
			g.endFill();
		}
	}
}

BoxMediator.as

package
{
	import org.robotlegs.mvcs.Mediator;
	
	public class BoxMediator extends Mediator
	{
		public function BoxMediator()
		{
			super();
		}
		
		public override function onRegister():void
		{
			super.onRegister();
			
			trace("view: ", this.viewComponent);
		}
	}
}

MainContext.as

package
{
	import flash.display.DisplayObjectContainer;
	
	import org.robotlegs.mvcs.Context;
	
	public class MainContext extends Context
	{
		public function MainContext(contextView:DisplayObjectContainer=null, autoStartup:Boolean=true)
		{
			super(contextView, autoStartup);
		}
		
		public override function startup():void
		{
			mediatorMap.mapView(Box, BoxMediator);
			
			super.startup();
		}
	}
}

TestingRLMediator.as

package
{
	import flash.display.Sprite;
	
	public class TestingRLMediators extends Sprite
	{
		private var context:MainContext;
		
		public function TestingRLMediators()
		{
			context = new MainContext(this);
			var box:Box = new Box();
			addChild(box);
		}
	}
}