Package org.optaplanner.core.impl.solver

Class AbstractSolver<Solution_>

java.lang.Object

org.optaplanner.core.impl.solver.AbstractSolver<Solution_>

Type Parameters:

Solution_ - the solution type, the class with the PlanningSolution annotation

All Implemented Interfaces:

Solver<Solution_>

Direct Known Subclasses:

DefaultSolver, PartitionSolver

public abstract class AbstractSolver<Solution_>
extends Object
implements Solver<Solution_>

Common code between DefaultSolver and child solvers (such as PartitionSolver.

Do not create a new child Solver to implement a new heuristic or metaheuristic, just use a new Phase for that.

See Also:

Solver, DefaultSolver

Field Summary

Fields

Modifier and Type	Field	Description
protected BestSolutionRecaller<Solution_>	bestSolutionRecaller
protected org.slf4j.Logger	logger
protected PhaseLifecycleSupport<Solution_>	phaseLifecycleSupport
protected List<Phase<Solution_>>	phaseList
protected SolverEventSupport<Solution_>	solverEventSupport
protected Termination<Solution_>	termination

Constructor Summary

Constructors

Constructor	Description
AbstractSolver(BestSolutionRecaller<Solution_> bestSolutionRecaller, Termination<Solution_> termination, List<Phase<Solution_>> phaseList)

Method Summary

Modifier and Type	Method	Description
void	addEventListener(SolverEventListener<Solution_> eventListener)
void	addPhaseLifecycleListener(PhaseLifecycleListener<Solution_> phaseLifecycleListener)	Add a PhaseLifecycleListener that is notified of SolverLifecycleListener.solvingStarted(SolverScope) solving} events and also of the phase and the PhaseLifecycleListener.stepStarted(AbstractStepScope) step} starting/ending events of all phases.
void	removeEventListener(SolverEventListener<Solution_> eventListener)
void	removePhaseLifecycleListener(PhaseLifecycleListener<Solution_> phaseLifecycleListener)
protected void	runPhases(SolverScope<Solution_> solverScope)
void	solvingEnded(SolverScope<Solution_> solverScope)
void	solvingStarted(SolverScope<Solution_> solverScope)

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.optaplanner.core.api.solver.Solver

addProblemFactChange, addProblemFactChanges, isEveryProblemFactChangeProcessed, isSolving, isTerminateEarly, solve, terminateEarly

Field Detail

logger

protected final transient org.slf4j.Logger logger

solverEventSupport

protected final SolverEventSupport<Solution_> solverEventSupport

phaseLifecycleSupport

protected final PhaseLifecycleSupport<Solution_> phaseLifecycleSupport

bestSolutionRecaller

protected final BestSolutionRecaller<Solution_> bestSolutionRecaller

termination

protected final Termination<Solution_> termination

phaseList

protected final List<Phase<Solution_>> phaseList

Constructor Detail

AbstractSolver

public AbstractSolver(BestSolutionRecaller<Solution_> bestSolutionRecaller,
                      Termination<Solution_> termination,
                      List<Phase<Solution_>> phaseList)

Method Detail

solvingStarted

public void solvingStarted(SolverScope<Solution_> solverScope)

runPhases

protected void runPhases(SolverScope<Solution_> solverScope)

solvingEnded

public void solvingEnded(SolverScope<Solution_> solverScope)

addEventListener

public void addEventListener(SolverEventListener<Solution_> eventListener)

Specified by:

addEventListener in interface Solver<Solution_>

Parameters:

eventListener - never null

removeEventListener

public void removeEventListener(SolverEventListener<Solution_> eventListener)

Specified by:

removeEventListener in interface Solver<Solution_>

Parameters:

eventListener - never null

addPhaseLifecycleListener

public void addPhaseLifecycleListener(PhaseLifecycleListener<Solution_> phaseLifecycleListener)

Add a PhaseLifecycleListener that is notified of SolverLifecycleListener.solvingStarted(SolverScope) solving} events and also of the phase and the PhaseLifecycleListener.stepStarted(AbstractStepScope) step} starting/ending events of all phases.

To get notified for only 1 phase, use Phase.addPhaseLifecycleListener(PhaseLifecycleListener) instead.

Parameters:

phaseLifecycleListener - never null

removePhaseLifecycleListener

public void removePhaseLifecycleListener(PhaseLifecycleListener<Solution_> phaseLifecycleListener)

Parameters:

phaseLifecycleListener - never null

See Also:

addPhaseLifecycleListener(PhaseLifecycleListener)