private static function savesMemoryCache( array $designBaseList, $siteAccess = false )
    {
        // store design base list in memory for the current request
        if ( $siteAccess )
            $GLOBALS['eZTemplateDesignResourceSiteAccessBases'][$siteAccess] = $designBaseList;
        else
            $GLOBALS['eZTemplateDesignResourceBases'] = $designBaseList;
    }