[AS]デザインパターン「Adapter」の練習
矢沢久雄の早わかりGoFデザインパターン(2) のAdapterの項をAS3で書いてみた。
こんなかんじでいいんだろうか？
Kyuuyoprog.as（ドキュメントクラス)
package {
import flash.display.Sprite;
/**
* ...
* @author 393
*/
public class KyuuyoProg extends Sprite {
public function KyuuyoProg() {
init();
}
private function init():void{
var shacho:Shacho = new Shacho(10000);
var shainAdapter:ShainAdapter = new ShainAdapter(shacho);
var shachokyuuyo:Number = getKyuuyo(shainAdapter);
var shain1:Shain = new Shain(90, 80);
var kyuuyo:Number = getKyuuyo(shain1);
trace( "shachokyuuyo : " + shachokyuuyo );
//出力：shachokyuuyo : 10000
trace( "kyuuyo : " + kyuuyo );
//出力：kyuuyo : 5670
}
private function getKyuuyo(obj:Shain):Number{
return obj.getJikan() * obj.getJikyu();
}
}
}
Shain.as
package {
/**
* ...
* @author 393
*/
public class Shain {
private var _jikyu:Number;
private var _jikan:Number;
public function Shain(jikyu:Number = 0, jikan:Number = 0) {
this._jikyu= jikyu;
this._jikan= jikan;
}
public function getJikan():Number {
//搾取
return _jikan - 10;
}
public function getJikyu():Number {
//搾取
return _jikyu * 0.9;
}
}
}
Shacho.as
package {
/**
* ...
* @author 393
*/
public class Shacho {
private var _koteikyu:Number;
public function Shacho(koteikyu:Number) {
_koteikyu = koteikyu
}
public function get koteikyu():Number { return _koteikyu; }
}
}
ShainAdapter.as（アダプタークラス）
package {
/**
* ...
* @author 393
*/
public class ShainAdapter extends Shain {
private var shachoObj:Shacho;
public function ShainAdapter(obj:Shacho) {
shachoObj = obj;
}
public override function getJikan():Number {
return 1;
}
public override function getJikyu():Number {
return shachoObj.koteikyu;
}
}
}
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