OptaPlanner core 6.0.0.CR4

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

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.ChangeMoveSelector
All Implemented Interfaces:
Iterable<Move>, EventListener, IterableSelector<Move>, MoveSelector, Selector, SolverPhaseLifecycleListener, SolverLifecycleListener

public class ChangeMoveSelector
extends GenericMoveSelector


Field Summary
protected  boolean chained
           
protected  EntitySelector entitySelector
           
protected  boolean randomSelection
           
protected  ValueSelector valueSelector
           
 
Fields inherited from class org.optaplanner.core.impl.heuristic.selector.AbstractSelector
logger, solverPhaseLifecycleSupport, workingRandom
 
Constructor Summary
ChangeMoveSelector(EntitySelector entitySelector, ValueSelector valueSelector, 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

entitySelector

protected final EntitySelector entitySelector

valueSelector

protected final ValueSelector valueSelector

randomSelection

protected final boolean randomSelection

chained

protected final boolean chained
Constructor Detail

ChangeMoveSelector

public ChangeMoveSelector(EntitySelector entitySelector,
                          ValueSelector valueSelector,
                          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.CR4

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