public int getEventType() {

		int event_list_code = (list_id_old != 0 ? LIST_DELETED : 0) + (list_id_new != 0 ? LIST_CREATED : 0);
		int event_item_code = (item_id_old != 0 ? ITEM_DELETED : 0) + (item_id_new != 0 ? ITEM_CREATED : 0);

		// Si les 2 list id sont égaux, on les ignore
		if (list_id_old - list_id_new == 0)
			event_list_code = 0;

		return event_item_code + event_list_code;
	}