public function setStaticContentUseAlternative(string $static_content_use_alternative = "D") : CNabuDataObject
    {
        if ($static_content_use_alternative === null) {
            throw new ENabuCoreException(
                    ENabuCoreException::ERROR_NULL_VALUE_NOT_ALLOWED_IN,
                    array("\$static_content_use_alternative")
            );
        }
        $this->setValue('nb_site_static_content_use_alternative', $static_content_use_alternative);
        
        return $this;
    }