org.drools.planner.core.localsearch.decider.acceptor.tabu
Class AbstractTabuAcceptor

java.lang.Object
  org.drools.planner.core.localsearch.event.LocalSearchSolverPhaseLifecycleListenerAdapter
      org.drools.planner.core.localsearch.decider.acceptor.AbstractAcceptor
          org.drools.planner.core.localsearch.decider.acceptor.tabu.AbstractTabuAcceptor

All Implemented Interfaces:

EventListener, Acceptor, LocalSearchSolverPhaseLifecycleListener

Direct Known Subclasses:

MoveTabuAcceptor, PropertyTabuAcceptor, SolutionTabuAcceptor

public abstract class AbstractTabuAcceptor
extends AbstractAcceptor

Abstract superclass for all Tabu Acceptors.

See Also:

Acceptor

Field Summary

protected boolean	aspirationEnabled
protected boolean	assertTabuHashCodeCorrectness
protected int	partialTabuSize
protected List<Object>	tabuSequenceList
protected int	tabuSize
protected Map<Object,Integer>	tabuToStepIndexMap

Fields inherited from class org.drools.planner.core.localsearch.decider.acceptor.AbstractAcceptor

logger

Constructor Summary

AbstractTabuAcceptor()

Method Summary

protected double	calculatePartialTabuAcceptChance(int partialTabuTime)
protected abstract Collection<? extends Object>	findNewTabu(LocalSearchStepScope localSearchStepScope)
protected abstract Collection<? extends Object>	findTabu(MoveScope moveScope)
int	getTabuSize()
boolean	isAccepted(MoveScope moveScope)
void	phaseStarted(LocalSearchSolverPhaseScope localSearchSolverPhaseScope)
void	setAspirationEnabled(boolean aspirationEnabled)
void	setAssertTabuHashCodeCorrectness(boolean assertTabuHashCodeCorrectness)
void	setPartialTabuSize(int partialTabuSize)
void	setTabuSize(int tabuSize)
void	stepTaken(LocalSearchStepScope localSearchStepScope)

Methods inherited from class org.drools.planner.core.localsearch.event.LocalSearchSolverPhaseLifecycleListenerAdapter

beforeDeciding, phaseEnded, stepDecided

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.drools.planner.core.localsearch.event.LocalSearchSolverPhaseLifecycleListener

beforeDeciding, phaseEnded, stepDecided

Field Detail

tabuSize

protected int tabuSize

partialTabuSize

protected int partialTabuSize

aspirationEnabled

protected boolean aspirationEnabled

assertTabuHashCodeCorrectness

protected boolean assertTabuHashCodeCorrectness

tabuToStepIndexMap

protected Map<Object,Integer> tabuToStepIndexMap

tabuSequenceList

protected List<Object> tabuSequenceList

Constructor Detail

AbstractTabuAcceptor

public AbstractTabuAcceptor()

Method Detail

getTabuSize

public int getTabuSize()

setTabuSize

public void setTabuSize(int tabuSize)

setPartialTabuSize

public void setPartialTabuSize(int partialTabuSize)

setAspirationEnabled

public void setAspirationEnabled(boolean aspirationEnabled)

setAssertTabuHashCodeCorrectness

public void setAssertTabuHashCodeCorrectness(boolean assertTabuHashCodeCorrectness)

phaseStarted

public void phaseStarted(LocalSearchSolverPhaseScope localSearchSolverPhaseScope)

Specified by:

phaseStarted in interface LocalSearchSolverPhaseLifecycleListener

Overrides:

phaseStarted in class LocalSearchSolverPhaseLifecycleListenerAdapter

isAccepted

public boolean isAccepted(MoveScope moveScope)

Parameters:

moveScope - not null

Returns:

true if accepted

calculatePartialTabuAcceptChance

protected double calculatePartialTabuAcceptChance(int partialTabuTime)

stepTaken

public void stepTaken(LocalSearchStepScope localSearchStepScope)

Specified by:

stepTaken in interface LocalSearchSolverPhaseLifecycleListener

Overrides:

stepTaken in class LocalSearchSolverPhaseLifecycleListenerAdapter

findTabu

protected abstract Collection<? extends Object> findTabu(MoveScope moveScope)

findNewTabu

protected abstract Collection<? extends Object> findNewTabu(LocalSearchStepScope localSearchStepScope)