とりあえず、singletonはこんなかんじらしい。
http://weblogs.macromedia.com/akamijo/archives/2005/12/index.cfm
http://subtech.g.hatena.ne.jp/secondlife/20070219/1171877084
package pattern {
public class Singleton {
private static var instance:Singleton;
public function Singleton(x:PrivateClass) {
}
public static function getInstance():Singleton {
if(Singleton.instance == null) {
Singleton.instance = new Singleton(new PrivateClass());
}
return Singleton.instance;
}
}
}
class PrivateClass {}