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