function objectForClass( $className )
    {
        if ( !isset( $GLOBALS['eZModuleOperationClassObjectList'] ) )
        {
            $GLOBALS['eZModuleOperationClassObjectList'] = array();
        }
        if ( isset( $GLOBALS['eZModuleOperationClassObjectList'][$className] ) )
        {
            return $GLOBALS['eZModuleOperationClassObjectList'][$className];
        }

        return $GLOBALS['eZModuleOperationClassObjectList'][$className] = new $className();
    }