Package ai.timefold.solver.core.impl.localsearch.decider.acceptor.simulatedannealing

Class SimulatedAnnealingAcceptor<Solution_>

java.lang.Object

ai.timefold.solver.core.impl.solver.event.SolverLifecycleListenerAdapter<Solution_>

ai.timefold.solver.core.impl.localsearch.event.LocalSearchPhaseLifecycleListenerAdapter<Solution_>

ai.timefold.solver.core.impl.localsearch.decider.acceptor.AbstractAcceptor<Solution_>

ai.timefold.solver.core.impl.localsearch.decider.acceptor.simulatedannealing.SimulatedAnnealingAcceptor<Solution_>

All Implemented Interfaces:

Acceptor<Solution_>, LocalSearchPhaseLifecycleListener<Solution_>, SolverLifecycleListener<Solution_>, EventListener

public class SimulatedAnnealingAcceptor<Solution_>
extends AbstractAcceptor<Solution_>

The time gradient implementation of simulated annealing.

Field Summary

Fields

Modifier and Type	Field	Description
protected int	levelsLength
protected Score	startingTemperature
protected double[]	startingTemperatureLevels
protected double[]	temperatureLevels
protected double	temperatureMinimum

Fields inherited from class ai.timefold.solver.core.impl.localsearch.decider.acceptor.AbstractAcceptor

logger

Constructor Summary

Constructors

Constructor	Description
SimulatedAnnealingAcceptor()

Method Summary

Modifier and Type	Method	Description
boolean	isAccepted(LocalSearchMoveScope<Solution_> moveScope)
void	phaseEnded(LocalSearchPhaseScope<Solution_> phaseScope)
void	phaseStarted(LocalSearchPhaseScope<Solution_> phaseScope)
void	setStartingTemperature(Score startingTemperature)
void	stepStarted(LocalSearchStepScope<Solution_> stepScope)

Methods inherited from class ai.timefold.solver.core.impl.localsearch.event.LocalSearchPhaseLifecycleListenerAdapter

stepEnded

Methods inherited from class ai.timefold.solver.core.impl.solver.event.SolverLifecycleListenerAdapter

solvingEnded, solvingStarted

Methods inherited from class java.lang.Object

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

Methods inherited from interface ai.timefold.solver.core.impl.localsearch.event.LocalSearchPhaseLifecycleListener

stepEnded

Methods inherited from interface ai.timefold.solver.core.impl.solver.event.SolverLifecycleListener

solvingEnded, solvingError, solvingStarted

Field Details

startingTemperature

protected Score startingTemperature

levelsLength

protected int levelsLength

startingTemperatureLevels

protected double[] startingTemperatureLevels

temperatureLevels

protected double[] temperatureLevels

temperatureMinimum

protected double temperatureMinimum

Constructor Details

SimulatedAnnealingAcceptor

public SimulatedAnnealingAcceptor()

Method Details

setStartingTemperature

public void setStartingTemperature(Score startingTemperature)

phaseStarted

public void phaseStarted(LocalSearchPhaseScope<Solution_> phaseScope)

Specified by:

phaseStarted in interface LocalSearchPhaseLifecycleListener<Solution_>

Overrides:

phaseStarted in class LocalSearchPhaseLifecycleListenerAdapter<Solution_>

phaseEnded

public void phaseEnded(LocalSearchPhaseScope<Solution_> phaseScope)

Specified by:

phaseEnded in interface LocalSearchPhaseLifecycleListener<Solution_>

Overrides:

phaseEnded in class LocalSearchPhaseLifecycleListenerAdapter<Solution_>

isAccepted

public boolean isAccepted(LocalSearchMoveScope<Solution_> moveScope)

Parameters:

moveScope - not null

Returns:

true if accepted

stepStarted

public void stepStarted(LocalSearchStepScope<Solution_> stepScope)

Specified by:

stepStarted in interface LocalSearchPhaseLifecycleListener<Solution_>

Overrides:

stepStarted in class LocalSearchPhaseLifecycleListenerAdapter<Solution_>