org.drools.planner.core.heuristic.selector.move.generic.chained
Class SubChainChangeMoveSelector

java.lang.Object
  extended by org.drools.planner.core.heuristic.selector.AbstractSelector
      extended by org.drools.planner.core.heuristic.selector.move.AbstractMoveSelector
          extended by org.drools.planner.core.heuristic.selector.move.generic.GenericMoveSelector
              extended by org.drools.planner.core.heuristic.selector.move.generic.chained.SubChainChangeMoveSelector
All Implemented Interfaces:
Iterable<Move>, EventListener, MoveSelector, Selector, SolverPhaseLifecycleListener, SolverLifecycleListener

public class SubChainChangeMoveSelector
extends GenericMoveSelector


Field Summary
protected  boolean randomSelection
           
protected  boolean selectReversingMoveToo
           
protected  SubChainSelector subChainSelector
           
protected  ValueSelector valueSelector
           
 
Fields inherited from class org.drools.planner.core.heuristic.selector.AbstractSelector
logger, solverPhaseLifecycleSupport, workingRandom
 
Constructor Summary
SubChainChangeMoveSelector(SubChainSelector subChainSelector, ValueSelector valueSelector, boolean randomSelection, boolean selectReversingMoveToo)
           
 
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.drools.planner.core.heuristic.selector.AbstractSelector
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.drools.planner.core.phase.event.SolverPhaseLifecycleListener
phaseEnded, phaseStarted, stepEnded, stepStarted
 
Methods inherited from interface org.drools.planner.core.solver.event.SolverLifecycleListener
solvingEnded, solvingStarted
 

Field Detail

subChainSelector

protected final SubChainSelector subChainSelector

valueSelector

protected final ValueSelector valueSelector

randomSelection

protected final boolean randomSelection

selectReversingMoveToo

protected final boolean selectReversingMoveToo
Constructor Detail

SubChainChangeMoveSelector

public SubChainChangeMoveSelector(SubChainSelector subChainSelector,
                                  ValueSelector valueSelector,
                                  boolean randomSelection,
                                  boolean selectReversingMoveToo)
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: Selector
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


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