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A Java library for reading and writing General Transit Feed Spec feeds
There is a newer version: 1.3.4
/**
 * Copyright (C) 2011 Brian Ferris 
 * Copyright (C) 2011 Google, Inc.
 * Copyright (C) 2011 Laurent Gregoire 
 *
 * 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 org.onebusaway.gtfs.services;

import org.onebusaway.gtfs.model.Agency;
import org.onebusaway.gtfs.model.AgencyAndId;
import org.onebusaway.gtfs.model.Frequency;
import org.onebusaway.gtfs.model.Route;
import org.onebusaway.gtfs.model.ServiceCalendar;
import org.onebusaway.gtfs.model.ServiceCalendarDate;
import org.onebusaway.gtfs.model.ShapePoint;
import org.onebusaway.gtfs.model.Stop;
import org.onebusaway.gtfs.model.StopTime;
import org.onebusaway.gtfs.model.Trip;

import java.util.List;

/**
 * While {@link GtfsDao} has basic methods for retrieving collections of
 * entities and entities by id, {@link GtfsRelationalDao} adds some basic
 * methods for retrieving entities using more complex data relations.
 * 
 * You can imagine many complex queries that you might perform on GTFS data,
 * most of which will not be included here. These are just some basic relational
 * methods that we use to bootstrap other GTFS classes. To add more complex
 * queries, look at the specific mechanisms provided by classes implementing
 * {@link GtfsRelationalDao} and {@link GtfsDao}.
 * 
 * @author bdferris
 */
public interface GtfsRelationalDao extends GtfsDao {

  /****
   * ServiceId Methods
   ****/

  public List getTripAgencyIdsReferencingServiceId(AgencyAndId serviceId);

  /****
   * Route Methods
   ****/

  public List getRoutesForAgency(Agency agency);

  /****
   * Stop Methods
   ****/
  
  public List getStopsForStation(Stop station);
  
  /****
   * {@link Trip} Methods
   ****/

  public List getTripsForRoute(Route route);
  
  public List getTripsForBlockId(AgencyAndId blockId); 

  /****
   * {@link StopTime} Methods
   ****/

  /**
   * @return the list of {@link StopTime} objects associated with the trip,
   *         sorted by {@link StopTime#getStopSequence()}
   */
  public List getStopTimesForTrip(Trip trip);

  /**
   * @return the list of {@link StopTime} objects associated with the specified
   *         {@link Stop}, in no particular order
   */
  public List getStopTimesForStop(Stop stop);

  /****
   * {@link ShapePoint} Methods
   ****/
  
  public List getAllShapeIds();

  public List getShapePointsForShapeId(AgencyAndId shapeId);

  /****
   * {@link Frequency} Methods
   ****/

  public List getFrequenciesForTrip(Trip trip);
  
  /****
   * {@link ServiceCalendar} Methods
   ****/
  
  public ServiceCalendar getCalendarForServiceId(AgencyAndId serviceId);
  
  /****
   * {@link ServiceCalendarDate} Methods
   ****/
  
  public List getCalendarDatesForServiceId(AgencyAndId serviceId);

}