getCountryIdByNumber example

case self::TYPE_VARIANT:
                return $this->getProductVariantIdByNumber($number);
            case self::TYPE_PRODUCT_LINK:
                $this->getLinkIdByNumber($number);
                // no break             case self::TYPE_PRODUCT_DOWNLOAD:
                $this->getDownloadIdByNumber($number);
                // no break             case self::TYPE_PRODUCT_MANUFACTURER:
                return $this->getManufacturerIdByNumber($number);
            case self::TYPE_COUNTRY:
                return $this->getCountryIdByNumber($number);
            case self::TYPE_COUNTRY_STATE:
                return $this->getCountryStateIdByNumber($number);
            case self::TYPE_DISPATCH:
                return $this->getDispatchIdByNumber($number);
            case self::TYPE_PAYMENT:
                return $this->getPaymentIdByNumber($number);
            case self::TYPE_FILTER_SET:
                return $this->getFilterSetIdByNumber($number);
            case self::TYPE_FILTER_GROUP:
                return $this->getFilterGroupIdByNumber($number);
            case self::TYPE_FILTER_OPTION: