package  {
	
	import flash.events.Event;
	import flash.events.EventDispatcher;
	
	public class BaseRegistry implements IRegistry  {

		protected var stage:Object;
		protected var head:Object;
		protected var lastUpdated:Array;
		
		public function BaseRegistry()  {
			this.stage = {};
			this.head = {};
			this.lastUpdated = new Array();
		}
		
		public function add(obj:Object):void {
			this.stage = Util.extend(this.stage, obj);
		}
		
		public function commit():void {
			if(!Util.objectIsEmpty(this.stage)) {
				this.head = Util.extend(this.head, this.stage);
				this.lastUpdated = Util.toPropertyChains(this.stage);
				this.stage = {};
			}
		}
		
		public function get(propChain:String):* {
			return Util.resolvePropertyChain(propChain, this.head);
		}
		
		public function getLastUpdated():Array {
			return this.lastUpdated;
		}
	}
}