Java tutorial
/* * Copyright 2008 Google Inc. * * Licensed under the Apache License, Version 2.0 (the "License"); you may not * use this file except in compliance with the License. You may obtain a copy of * the License at * * http://www.apache.org/licenses/LICENSE-2.0 * * Unless required by applicable law or agreed to in writing, software * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the * License for the specific language governing permissions and limitations under * the License. */ package com.google.gwt.maps.client.event; import com.google.gwt.maps.client.overlay.Polyline; import java.util.EventObject; /** * Provides an interface to implement in order to receive MapEvent.REMOVE events * from the {@link Polyline}. */ public interface PolylineRemoveHandler { /** * Encapsulates the arguments for the MapEvent.REMOVE event on a * {@link Polyline}. */ @SuppressWarnings("serial") class PolylineRemoveEvent extends EventObject { public PolylineRemoveEvent(Polyline source) { super(source); } /** * Returns the instance of the polyline that generated this event. * * @return the instance of the polyline that generated this event. */ public Polyline getSender() { return (Polyline) getSource(); } } /** * Method to be invoked when a MapEvent.REMOVE event fires on a * {@link Polyline}. * * @param event contains the properties of the event. */ void onRemove(PolylineRemoveEvent event); }