org.jorlib.io.tspLibReader.graph

Class VehicleRoutingTable

java.lang.Object

org.jorlib.io.tspLibReader.graph.VehicleRoutingTable

public class VehicleRoutingTable
extends Object

Stores the demand at each node and identifies the depot nodes for vehicle routing problems.

Author:

David Hadka

Constructor Summary

Constructors

Constructor and Description
VehicleRoutingTable(int size) Constructs a new, empty vehicle routing table.

Method Summary

Modifier and Type	Method and Description
int	getDemand(int id) Returns the demand at the specified node.
boolean	isDepot(int id) Returns true if this is a depot node; false otherwise.
void	loadDemands(BufferedReader reader) Loads the demands from the specified reader.
void	loadDepots(BufferedReader reader) Loads the depot list from the given reader.

Methods inherited from class java.lang.Object

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

Constructor Detail

VehicleRoutingTable

public VehicleRoutingTable(int size)

Constructs a new, empty vehicle routing table.

Parameters:

size - the number of nodes the the problem instance

Method Detail

loadDemands

public void loadDemands(BufferedReader reader)
                 throws IOException

Loads the demands from the specified reader.

Parameters:

reader - the reader containing the demands

Throws:

IOException - if an I/O error occurred while reading the demands

loadDepots

public void loadDepots(BufferedReader reader)
                throws IOException

Loads the depot list from the given reader.

Parameters:

reader - the reader that defines the depot nodes

Throws:

IOException - if an I/O error occurred while reading the depot list

getDemand

public int getDemand(int id)

Returns the demand at the specified node.

Parameters:

id - the identifier of the node

Returns:

the demand at the specified node

Throws:

IllegalArgumentException - if a node with the specified identifier does not exist

isDepot

public boolean isDepot(int id)

Returns true if this is a depot node; false otherwise.

Parameters:

id - the identifier of the node

Returns:

true if this is a depot node; false otherwise

Throws:

IllegalArgumentException - if a node with the specified identifier does not exist