<?xml version="1.0" encoding="utf-8"?> <mx:Application xmlns:mx="http://www.adobe.com/2006/mxml" addedToStage="setup()"> <mx:Script> <![CDATA[ import com.adobe.serialization.json.JSON; import mx.utils.Base64Decoder; import jp.nium.utils.ClassUtil; private static const MAX:Number = 100; // Base64データ（2,770 バイト） private const DATA_BASE64:String = 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// JSONデータ（7,356 バイト） private const DATA_JSON:String = 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private var array:Array = []; protected function calc():void { var log:Array = [], old:int, o:Object; // -- log.push("" + MAX + " 個の Point インスタンスを格納した配列情報について\n文字列から復元した場合の計算結果 [単位 ： ミリ秒]"); log.push("(誤差は多少生じます)"); log.push(""); // -- old = getTimer(); registerClassAlias(ClassUtil.getClassPath(Point), Point); var enc:Base64Decoder = new Base64Decoder(); enc.decode(DATA_BASE64); var ba:ByteArray = enc.toByteArray(); o = ba.readObject(); log.push("ByteArray.readObject() + Base64 Decode -> " + (getTimer() - old) + " ms (input is String)"); trace(o); // -- old = getTimer(); o = JSON.decode(DATA_JSON); log.push("JSON.decode() -> " + (getTimer() - old) + " ms (input is String)"); trace(o); // -- log.push(""); log.push("保存容量について、Base64 データは 2770 バイト、JSON データは 7356 バイト"); log.push("結果については言及しませんので, 各自ご判断ください."); ta.text = log.join("\n"); } protected function setup():void { for (var i:int = 0; i < MAX; i++) { array[ i ] = new Point(MAX * Math.random(), MAX * Math.random()); } calc(); } ]]> </mx:Script> <mx:Button label="Re Calculation" click="calc()"/> <mx:TextArea id="ta" editable="false" width="100%" height="100%"/> </mx:Application>