com.graphhopper.jsprit.core.algorithm.acceptor

Class ExperimentalSchrimpfAcceptance

java.lang.Object

com.graphhopper.jsprit.core.algorithm.acceptor.ExperimentalSchrimpfAcceptance

All Implemented Interfaces:

SolutionAcceptor, AlgorithmStartsListener, IterationStartsListener, VehicleRoutingAlgorithmListener

public class ExperimentalSchrimpfAcceptance
extends Object
implements SolutionAcceptor, IterationStartsListener, AlgorithmStartsListener

Constructor Summary

Constructors

Constructor and Description
ExperimentalSchrimpfAcceptance(int solutionMemory, double alpha, int nOfWarmupIterations)

Method Summary

Modifier and Type	Method and Description
boolean	acceptSolution(Collection<VehicleRoutingProblemSolution> solutions, VehicleRoutingProblemSolution newSolution) Accepts solution or not, and returns true if a new solution has been accepted.
void	informAlgorithmStarts(VehicleRoutingProblem problem, VehicleRoutingAlgorithm algorithm, Collection<VehicleRoutingProblemSolution> solutions)
void	informIterationStarts(int i, VehicleRoutingProblem problem, Collection<VehicleRoutingProblemSolution> solutions)
String	toString()

Methods inherited from class java.lang.Object

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

Constructor Detail

ExperimentalSchrimpfAcceptance

public ExperimentalSchrimpfAcceptance(int solutionMemory,
                                      double alpha,
                                      int nOfWarmupIterations)

Method Detail

acceptSolution

public boolean acceptSolution(Collection<VehicleRoutingProblemSolution> solutions,
                              VehicleRoutingProblemSolution newSolution)

Description copied from interface: SolutionAcceptor

Accepts solution or not, and returns true if a new solution has been accepted.

If the solution is accepted, it is added to solutions, i.e. the solutions-collections is modified.

Specified by:

acceptSolution in interface SolutionAcceptor

Parameters:

solutions - collection of existing solutions

newSolution - new solution to be evaluated

Returns:

true if solution accepted

toString

public String toString()

Overrides:

toString in class Object

informAlgorithmStarts

public void informAlgorithmStarts(VehicleRoutingProblem problem,
                                  VehicleRoutingAlgorithm algorithm,
                                  Collection<VehicleRoutingProblemSolution> solutions)

Specified by:

informAlgorithmStarts in interface AlgorithmStartsListener

informIterationStarts

public void informIterationStarts(int i,
                                  VehicleRoutingProblem problem,
                                  Collection<VehicleRoutingProblemSolution> solutions)

Specified by:

informIterationStarts in interface IterationStartsListener