Package 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	Description
ExperimentalSchrimpfAcceptance(int solutionMemory, double alpha, int nOfWarmupIterations)

Method Summary

Modifier and Type	Method	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

Methods inherited from interface com.graphhopper.jsprit.core.algorithm.acceptor.SolutionAcceptor

getCurrentThreshold

Constructor Details

ExperimentalSchrimpfAcceptance

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

Method Details

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