basics
Class VehicleRoutingProblem

java.lang.Object
  basics.VehicleRoutingProblem

public class VehicleRoutingProblem
extends java.lang.Object

Contains and describes the vehicle routing problem.

A routing problem is defined as jobs, vehicles and costs.

To construct the problem, use VehicleRoutingProblem.Builder (VehicleRoutingProblem.Builder.newInstance()).

By default, fleetSize is INFINITE and fleetComposition is HOMOGENEOUS, transport-costs are calculated as euclidean-distance (CrowFlyCosts), and activity-costs are set to DefaultVehicleRoutingActivityCosts which represent hard time-windows (missed time-windows are penalyzed with Double.MAX_VALUE).

Author:

stefan schroeder

Nested Class Summary

static class	VehicleRoutingProblem.Builder Builder to build the routing-problem.
static class	VehicleRoutingProblem.Constraint Overall problem constraints.
static class	VehicleRoutingProblem.FleetComposition Enum that characterizes fleet-compostion.
static class	VehicleRoutingProblem.FleetSize Enum that characterizes the fleet-size.

Field Summary

static org.apache.log4j.Logger

log

Method Summary

VehicleRoutingActivityCosts	getActivityCosts() Returns activityCosts.
VehicleRoutingProblem.FleetComposition	getFleetComposition() Returns fleet-composition.
VehicleRoutingProblem.FleetSize	getFleetSize() Returns type of fleetSize, either INFINITE or FINITE.
java.util.Map<java.lang.String,Job>	getJobs() Returns the unmodifiable job map.
Neighborhood	getNeighborhood()
java.util.Collection<VehicleRoutingProblem.Constraint>	getProblemConstraints() Returns unmodifiable collection of problem-constraints.
VehicleRoutingTransportCosts	getTransportCosts() Returns routing costs.
java.util.Collection<VehicleType>	getTypes() Returns the entire, unmodifiable collection of types.
java.util.Collection<Vehicle>	getVehicles() Returns the entire, unmodifiable collection of vehicles.
java.lang.String	toString()

Methods inherited from class java.lang.Object

equals, getClass, hashCode, notify, notifyAll, wait, wait, wait

Field Detail

log

public static org.apache.log4j.Logger log

Method Detail

toString

public java.lang.String toString()

Overrides:

toString in class java.lang.Object

getNeighborhood

public Neighborhood getNeighborhood()

Returns:

the neighborhood

getFleetComposition

public VehicleRoutingProblem.FleetComposition getFleetComposition()

Returns fleet-composition.

Returns:

fleetComposition which is either FleetComposition.HETEROGENEOUS or FleetComposition.HOMOGENEOUS

getFleetSize

public VehicleRoutingProblem.FleetSize getFleetSize()

Returns type of fleetSize, either INFINITE or FINITE.

By default, it is INFINITE.

Returns:

either FleetSize.INFINITE or FleetSize.FINITE

getJobs

public java.util.Map<java.lang.String,Job> getJobs()

Returns the unmodifiable job map.

Returns:

unmodifiable jobMap

getProblemConstraints

public java.util.Collection<VehicleRoutingProblem.Constraint> getProblemConstraints()

Returns unmodifiable collection of problem-constraints.

Returns:

getTypes

public java.util.Collection<VehicleType> getTypes()

Returns the entire, unmodifiable collection of types.

Returns:

unmodifiable collection of types

See Also:

VehicleTypeImpl

getVehicles

public java.util.Collection<Vehicle> getVehicles()

Returns the entire, unmodifiable collection of vehicles.

Returns:

unmodifiable collection of vehicles

See Also:

Vehicle

getTransportCosts

public VehicleRoutingTransportCosts getTransportCosts()

Returns routing costs.

Returns:

routingCosts

See Also:

VehicleRoutingTransportCosts

getActivityCosts

public VehicleRoutingActivityCosts getActivityCosts()

Returns activityCosts.