Java tutorial
package com.google.gwt.maps.client.services; /* * #%L * GWT Maps API V3 - Core API * %% * Copyright (C) 2011 - 2012 GWT Maps API V3 * %% * 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. * #L% */ import com.google.gwt.core.client.JavaScriptObject; import com.google.gwt.core.client.JsArray; /** * A service for converting between an address and LatLng. */ public class Geocoder extends JavaScriptObject { /** * use newInstance(); */ protected Geocoder() { } /** * Creates a new instance of a Geocoder that sends geocode requests to Google servers. */ public static final Geocoder newInstance() { return createJso().cast(); } private static final native JavaScriptObject createJso() /*-{ return new $wnd.google.maps.Geocoder(); }-*/; /** * Geocode a request. * * @param request * @param handler */ public final native void geocode(GeocoderRequest request, GeocoderRequestHandler handler) /*-{ var callback = function(results, status) { $entry(@com.google.gwt.maps.client.services.Geocoder::geocodeImpl(Lcom/google/gwt/core/client/JsArray;Ljava/lang/String;Lcom/google/gwt/maps/client/services/GeocoderRequestHandler;)(results, status, handler)); }; this.geocode(request, callback); }-*/; private static final void geocodeImpl(JsArray<GeocoderResult> results, String status, GeocoderRequestHandler handler) { handler.onCallback(results, GeocoderStatus.fromValue(status)); } }