public function setUseURI(string $use_uri = "N") : CNabuDataObject
    {
        if ($use_uri === null) {
            throw new ENabuCoreException(
                    ENabuCoreException::ERROR_NULL_VALUE_NOT_ALLOWED_IN,
                    array("\$use_uri")
            );
        }
        $this->setValue('nb_site_map_use_uri', $use_uri);
        
        return $this;
    }