org.drools.planner.core.localsearch.decider.acceptor
Class CompositeAcceptor

java.lang.Object
  org.drools.planner.core.localsearch.decider.acceptor.AbstractAcceptor
      org.drools.planner.core.localsearch.decider.acceptor.CompositeAcceptor

All Implemented Interfaces:

Acceptor, LocalSearchSolverLifecycleListener

public class CompositeAcceptor
extends AbstractAcceptor

Combines several acceptors into one. Multiplies the accept chance of its acceptors. For example: combine solution and property tabu to do tabu on both.

Field Summary

protected List<Acceptor>

acceptorList

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

logger

Constructor Summary

CompositeAcceptor()

Method Summary

void	beforeDeciding(LocalSearchStepScope localSearchStepScope)
double	calculateAcceptChance(MoveScope moveScope) TODO the use for an acceptChance between 0.0 and 1.0 is unproven.
void	setAcceptorList(List<Acceptor> acceptorList)
void	solvingEnded(LocalSearchSolverScope localSearchSolverScope)
void	solvingStarted(LocalSearchSolverScope localSearchSolverScope)
void	stepDecided(LocalSearchStepScope localSearchStepScope)
void	stepTaken(LocalSearchStepScope localSearchStepScope)

Methods inherited from class java.lang.Object

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

Field Detail

acceptorList

protected List<Acceptor> acceptorList

Constructor Detail

CompositeAcceptor

public CompositeAcceptor()

Method Detail

setAcceptorList

public void setAcceptorList(List<Acceptor> acceptorList)

solvingStarted

public void solvingStarted(LocalSearchSolverScope localSearchSolverScope)

Specified by:

solvingStarted in interface LocalSearchSolverLifecycleListener

Overrides:

solvingStarted in class AbstractAcceptor

beforeDeciding

public void beforeDeciding(LocalSearchStepScope localSearchStepScope)

Specified by:

beforeDeciding in interface LocalSearchSolverLifecycleListener

Overrides:

beforeDeciding in class AbstractAcceptor

calculateAcceptChance

public double calculateAcceptChance(MoveScope moveScope)

Description copied from interface: Acceptor

TODO the use for an acceptChance between 0.0 and 1.0 is unproven. A boolean instead of a double is sufficient?

Parameters:

moveScope - not null

Returns:

never negative; if rejected 0.0; if accepted higher than 0.0 (usually 1.0)

stepDecided

public void stepDecided(LocalSearchStepScope localSearchStepScope)

Specified by:

stepDecided in interface LocalSearchSolverLifecycleListener

Overrides:

stepDecided in class AbstractAcceptor

stepTaken

public void stepTaken(LocalSearchStepScope localSearchStepScope)

Specified by:

stepTaken in interface LocalSearchSolverLifecycleListener

Overrides:

stepTaken in class AbstractAcceptor

solvingEnded

public void solvingEnded(LocalSearchSolverScope localSearchSolverScope)

Specified by:

solvingEnded in interface LocalSearchSolverLifecycleListener

Overrides:

solvingEnded in class AbstractAcceptor