public function setHavePublic($have_public) : CNabuDataObject
    {
        if ($have_public === null) {
            throw new ENabuCoreException(
                    ENabuCoreException::ERROR_NULL_VALUE_NOT_ALLOWED_IN,
                    array("\$have_public")
            );
        }
        $this->setValue('nb_medioteca_item_lang_have_public', $have_public);
        
        return $this;
    }