Java tutorial
/* * Copyright 2011 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.geolocation.client; import com.google.gwt.core.client.SingleJsoImpl; import com.google.gwt.geolocation.client.PositionImpl.CoordinatesImpl; /** * Represents information about the user's position as reported by the browser. */ @SingleJsoImpl(PositionImpl.class) public interface Position { /** * Returns information about the coordinates reported by the browser. */ public Coordinates getCoordinates(); /** * Returns the time this position was reported by the browser. */ public double getTimestamp(); /** * Represents position reported by the browser. */ @SingleJsoImpl(CoordinatesImpl.class) public interface Coordinates { /** * Returns the estimated accuracy reported by the browser, in meters. */ public double getAccuracy(); /** * Returns the altitude reported by the browser, in meters, above the <a * href="http://en.wikipedia.org/wiki/Reference_ellipsoid">reference * ellipsoid</a>, or <code>null</code> if the browser did not report an * altitude. */ public Double getAltitude(); /** * Returns the estimated accuracy of the altitude reported by the browser, * in meters, or <code>null</code> if the browser did not report an * accuracy. */ public Double getAltitudeAccuracy(); /** * Returns the heading, in degrees from due north, reported by the browser, * based on previous calls to get the user's position, or <code>null</code> * if the browser did not report a heading. */ public Double getHeading(); /** * Returns the decimal latitude reported by the browser. */ public double getLatitude(); /** * Returns the decimal longitude reported by the browser. */ public double getLongitude(); /** * Returns the speed, in meters/second, reported by the browser, based on * previous calls to get the user's position, or <code>null</code> if the * browser did not report a speed. */ public Double getSpeed(); } }