public static function getClassData(&$classData = null) {
		$class = static::getClass();
		if( !isset(static::$knownClassData[$class]) ) {
			static::$knownClassData[$class] = (object)array(
				'sqlAdapter' => null,
			);
		}
		$classData = static::$knownClassData[$class];
		return $classData;
	}