public function stateExists($stateValue, $throwException=false)
	{
		if (isset($this->cacheConfigMap[$stateValue])) {
			return true;
		} else if ($throwException) {
			$msg = Yii::t('app', 'There is no state with the value {val}', ['val'=>$stateValue]);
			throw new InvalidParamException($msg);
		} else {
			return false;
		}
	}