ContentValues createContentValues(Waypoint waypoint) {
    ContentValues values = new ContentValues();

    // Value < 0 indicates no id is available
    if (waypoint.getId() >= 0) {
      values.put(WaypointsColumns._ID, waypoint.getId());
    }
    values.put(WaypointsColumns.NAME, waypoint.getName());
    values.put(WaypointsColumns.DESCRIPTION, waypoint.getDescription());
    values.put(WaypointsColumns.CATEGORY, waypoint.getCategory());
    values.put(WaypointsColumns.ICON, waypoint.getIcon());
    values.put(WaypointsColumns.TRACKID, waypoint.getTrackId());
    values.put(WaypointsColumns.TYPE, waypoint.getType());
    values.put(WaypointsColumns.LENGTH, waypoint.getLength());
    values.put(WaypointsColumns.DURATION, waypoint.getDuration());
    values.put(WaypointsColumns.STARTID, waypoint.getStartId());
    values.put(WaypointsColumns.STOPID, waypoint.getStopId());

    Location location = waypoint.getLocation();
    if (location != null) {
      values.put(WaypointsColumns.LONGITUDE, (int) (location.getLongitude() * 1E6));
      values.put(WaypointsColumns.LATITUDE, (int) (location.getLatitude() * 1E6));
      values.put(WaypointsColumns.TIME, location.getTime());
      if (location.hasAltitude()) {
        values.put(WaypointsColumns.ALTITUDE, location.getAltitude());
      }
      if (location.hasAccuracy()) {
        values.put(WaypointsColumns.ACCURACY, location.getAccuracy());
      }
      if (location.hasSpeed()) {
        values.put(WaypointsColumns.SPEED, location.getSpeed());
      }
      if (location.hasBearing()) {
        values.put(WaypointsColumns.BEARING, location.getBearing());
      }
    }

    TripStatistics tripStatistics = waypoint.getTripStatistics();
    if (tripStatistics != null) {
      values.put(WaypointsColumns.STARTTIME, tripStatistics.getStartTime());
      values.put(WaypointsColumns.TOTALDISTANCE, tripStatistics.getTotalDistance());
      values.put(WaypointsColumns.TOTALTIME, tripStatistics.getTotalTime());
      values.put(WaypointsColumns.MOVINGTIME, tripStatistics.getMovingTime());
      values.put(WaypointsColumns.AVGSPEED, tripStatistics.getAverageSpeed());
      values.put(WaypointsColumns.AVGMOVINGSPEED, tripStatistics.getAverageMovingSpeed());
      values.put(WaypointsColumns.MAXSPEED, tripStatistics.getMaxSpeed());
      values.put(WaypointsColumns.MINELEVATION, tripStatistics.getMinElevation());
      values.put(WaypointsColumns.MAXELEVATION, tripStatistics.getMaxElevation());
      values.put(WaypointsColumns.ELEVATIONGAIN, tripStatistics.getTotalElevationGain());
      values.put(WaypointsColumns.MINGRADE, tripStatistics.getMinGrade());
      values.put(WaypointsColumns.MAXGRADE, tripStatistics.getMaxGrade());
    }
    return values;
  }
 @Override
 public void deleteWaypoint(long waypointId, DescriptionGenerator descriptionGenerator) {
   final Waypoint waypoint = getWaypoint(waypointId);
   if (waypoint != null && waypoint.getType() == Waypoint.TYPE_STATISTICS) {
     final Waypoint nextWaypoint = getNextStatisticsWaypointAfter(waypoint);
     if (nextWaypoint == null) {
       Log.d(TAG, "Unable to find the next statistics marker after deleting one.");
     } else {
       nextWaypoint.getTripStatistics().merge(waypoint.getTripStatistics());
       nextWaypoint.setDescription(
           descriptionGenerator.generateWaypointDescription(nextWaypoint.getTripStatistics()));
       if (!updateWaypoint(nextWaypoint)) {
         Log.e(TAG, "Unable to update the next statistics marker after deleting one.");
       }
     }
   }
   contentResolver.delete(
       WaypointsColumns.CONTENT_URI,
       WaypointsColumns._ID + "=?",
       new String[] {Long.toString(waypointId)});
 }