static function moduleOperationInfo( $moduleName, $useTriggers = true )
    {
        if ( !isset( $GLOBALS['eZGlobalModuleOperationList'] ) )
        {
            $GLOBALS['eZGlobalModuleOperationList'] = array();
        }
        if ( isset( $GLOBALS['eZGlobalModuleOperationList'][$moduleName] ) )
        {
            return $GLOBALS['eZGlobalModuleOperationList'][$moduleName];
        }
        $moduleOperationInfo = new eZModuleOperationInfo( $moduleName, $useTriggers );
        $moduleOperationInfo->loadDefinition();
        return $GLOBALS['eZGlobalModuleOperationList'][$moduleName] = $moduleOperationInfo;
    }