Archive for the 'patterns' Category

Yahoo’s Design Pattern library

Yahoo have created an excellent resource online called the Yahoo Design Pattern library which helps to illustrate solution to design problems; not design in the creative sense, but in the problem solving sense.
They’ve just added a bunch of solutions around manging and engaging people in reputation management online.

Reputation Parent - Yahoo! Design Pattern Library

The Singleton

[ftf]class MySingleton {

private static var _instance:MySingleton = null;

private function MySingleton() {}

static function getInstance():MySingleton {
if(_instance == null) _instance = new MySingleton();
return _instance;
}

public function doSomething() {
trace(“This is a singleton method”);
}

}[/ftf]

The purpose of a Singleton is to enable access to it from anywhere and ensure you don’t ever have more than one. Another way of looking at it is a _global container of data without using _global.




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