question: public void addNotification ( @ NotNull Notification notification ) { notifications . add ( notification ) ; NotificationContainerItem item = new NotificationContainerItem ( notification , resources ) ; item . setDelegate ( this ) ; int index = nGrid . getRowCount ( ) ; nGrid . resizeRows ( index + 1 ) ; nGrid . setWidget ( index , 0 , item ) ; }
target:  Show notification in container.