org.onebusaway.transit_data_federation.services.blocks
Class FrequencyBlockTripIndex

java.lang.Object
  org.onebusaway.transit_data_federation.services.blocks.AbstractBlockTripIndex
      org.onebusaway.transit_data_federation.services.blocks.FrequencyBlockTripIndex

All Implemented Interfaces:

HasBlockTrips, HasIndexedFrequencyBlockTrips

public class FrequencyBlockTripIndex
extends AbstractBlockTripIndex
implements HasIndexedFrequencyBlockTrips

A FrequencyBlockTripIndex is a collection of BlockTripEntry elements that have the following properties in common: 1) Each BlockTripEntry refers to the same stop sequence pattern and underlying shape of travel. 2) Each BlockTripEntry has the same set of service ids (see BlockConfigurationEntry.getServiceIds() 3) Each BlockTripEntry refers to a frequency-based trip with a FrequencyEntry. Since the same BlockTripEntry can have multiple FrequencyEntry, a trip may appear more than once in the index. 4) The list of FrequencyEntry elements is sorted by start time and no frequency block ever overtakes another block. 4) The ServiceIntervalBlock additionally captures the min and max arrival and departure times for each trip in the list, in the same sorted order as the block list. These assumptions allow us to do efficient searches for blocks that are active at a particular time.

Author:

bdferris

See Also:

BlockCalendarService

Field Summary

Fields inherited from class org.onebusaway.transit_data_federation.services.blocks.AbstractBlockTripIndex

_trips

Constructor Summary

FrequencyBlockTripIndex(List<BlockTripEntry> trips, List<FrequencyEntry> frequencies, FrequencyServiceIntervalBlock serviceIntervalBlock)
See the requirements in the class documentation.

Method Summary

int	getEndTimeForIndex(int index)
List<FrequencyEntry>	getFrequencies()
FrequencyServiceIntervalBlock	getServiceIntervalBlock()
int	getStartTimeForIndex(int index) HasIndexedFrequencyBlockTrips
String	toString()

Methods inherited from class org.onebusaway.transit_data_federation.services.blocks.AbstractBlockTripIndex

getServiceIds, getTrips, size

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

Constructor Detail

FrequencyBlockTripIndex

public FrequencyBlockTripIndex(List<BlockTripEntry> trips,
                               List<FrequencyEntry> frequencies,
                               FrequencyServiceIntervalBlock serviceIntervalBlock)

See the requirements in the class documentation.

Parameters:

trips -

serviceIdIntervals -

serviceIntervalBlock -

Method Detail

getFrequencies

public List<FrequencyEntry> getFrequencies()

getServiceIntervalBlock

public FrequencyServiceIntervalBlock getServiceIntervalBlock()

toString

public String toString()

Overrides:

toString in class Object

getStartTimeForIndex

public int getStartTimeForIndex(int index)

HasIndexedFrequencyBlockTrips

Specified by:

getStartTimeForIndex in interface HasIndexedFrequencyBlockTrips

getEndTimeForIndex

public int getEndTimeForIndex(int index)

Specified by:

getEndTimeForIndex in interface HasIndexedFrequencyBlockTrips