OptaPlanner core 6.0.0.Beta3

org.optaplanner.core.impl.heuristic.selector.move.generic
Class SwapMoveSelector

java.lang.Object
  extended by org.optaplanner.core.impl.heuristic.selector.AbstractSelector
      extended by org.optaplanner.core.impl.heuristic.selector.move.AbstractMoveSelector
          extended by org.optaplanner.core.impl.heuristic.selector.move.generic.GenericMoveSelector
              extended by org.optaplanner.core.impl.heuristic.selector.move.generic.SwapMoveSelector
All Implemented Interfaces:
Iterable<Move>, EventListener, IterableSelector<Move>, MoveSelector, Selector, SolverPhaseLifecycleListener, SolverLifecycleListener

public class SwapMoveSelector
extends GenericMoveSelector


Field Summary
protected  boolean anyChained
           
protected  EntitySelector leftEntitySelector
           
protected  boolean randomSelection
           
protected  EntitySelector rightEntitySelector
           
protected  Collection<PlanningVariableDescriptor> variableDescriptors
           
 
Fields inherited from class org.optaplanner.core.impl.heuristic.selector.AbstractSelector
logger, solverPhaseLifecycleSupport, workingRandom
 
Constructor Summary
SwapMoveSelector(EntitySelector leftEntitySelector, EntitySelector rightEntitySelector, Collection<PlanningVariableDescriptor> variableDescriptors, boolean randomSelection)
           
 
Method Summary
 long getSize()
          A random JIT Selector with Selector.isNeverEnding() true should return a size as if it would be able to return each distinct element only once, because the size can be used in SelectionProbabilityWeightFactory.
 boolean isContinuous()
          If true, then Selector.isNeverEnding() is also true.
 boolean isNeverEnding()
          Is true if Selector.isContinuous() is true or if this selector is in random order (for most cases).
 Iterator<Move> iterator()
           
 String toString()
           
 
Methods inherited from class org.optaplanner.core.impl.heuristic.selector.AbstractSelector
getCacheType, phaseEnded, phaseStarted, solvingEnded, solvingStarted, stepEnded, stepStarted
 
Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait
 
Methods inherited from interface org.optaplanner.core.impl.heuristic.selector.Selector
getCacheType
 
Methods inherited from interface org.optaplanner.core.impl.phase.event.SolverPhaseLifecycleListener
phaseEnded, phaseStarted, stepEnded, stepStarted
 
Methods inherited from interface org.optaplanner.core.impl.solver.event.SolverLifecycleListener
solvingEnded, solvingStarted
 

Field Detail

leftEntitySelector

protected final EntitySelector leftEntitySelector

rightEntitySelector

protected final EntitySelector rightEntitySelector

variableDescriptors

protected final Collection<PlanningVariableDescriptor> variableDescriptors

randomSelection

protected final boolean randomSelection

anyChained

protected final boolean anyChained
Constructor Detail

SwapMoveSelector

public SwapMoveSelector(EntitySelector leftEntitySelector,
                        EntitySelector rightEntitySelector,
                        Collection<PlanningVariableDescriptor> variableDescriptors,
                        boolean randomSelection)
Method Detail

isContinuous

public boolean isContinuous()
Description copied from interface: Selector
If true, then Selector.isNeverEnding() is also true.

Returns:
true if any of the value ranges are continuous (as in for example every double value between 1.2 and 1.4)

isNeverEnding

public boolean isNeverEnding()
Description copied from interface: Selector
Is true if Selector.isContinuous() is true or if this selector is in random order (for most cases). Is never true when this selector is in shuffled order (which is less scalable but more exact).

Returns:
true if the Iterator.hasNext() of the Iterator created by Iterable.iterator() never returns false.

getSize

public long getSize()
Description copied from interface: IterableSelector
A random JIT Selector with Selector.isNeverEnding() true should return a size as if it would be able to return each distinct element only once, because the size can be used in SelectionProbabilityWeightFactory.

Returns:
the approximate number of elements generated by this Selector, always >= 0

iterator

public Iterator<Move> iterator()

toString

public String toString()
Overrides:
toString in class Object

OptaPlanner core 6.0.0.Beta3

Copyright © 2006-2013 JBoss by Red Hat. All Rights Reserved.