org.optaplanner.core.impl.heuristic.selector.common.nearby.NearbyDistanceMatrixDemand<Solution_,Origin_,Destination_>

All Implemented Interfaces:: Demand<MemoizingSupply<NearbyDistanceMatrix<Origin_,Destination_>>>

public final class NearbyDistanceMatrixDemand<Solution_,Origin_,Destination_> extends Object implements Demand<MemoizingSupply<NearbyDistanceMatrix<Origin_,Destination_>>>

Calculating NearbyDistanceMatrix is very expensive, therefore we want to reuse it as much as possible.

In cases where the demand represents the same nearby selector (as defined by equals(Object)) the SupplyManager ensures that the same supply instance is returned with the pre-computed NearbyDistanceMatrix.

Constructor Details
- NearbyDistanceMatrixDemand
  
  public NearbyDistanceMatrixDemand(NearbyDistanceMeter<Origin_,Destination_> meter, Selector<Solution_> childSelector, EntitySelector<Solution_> replayingOriginEntitySelector, ToIntFunction<Origin_> destinationSizeFunction)
Method Details
- createExternalizedSupply
  
  public MemoizingSupply<NearbyDistanceMatrix<Origin_,Destination_>> createExternalizedSupply(SupplyManager supplyManager)
  
  Description copied from interface: Demand
  
  Only called if the domain model doesn't already support the demand (through a shadow variable usually). Equal demands share the same Supply.
  
  Specified by:
  
  createExternalizedSupply in interface Demand<Solution_>
  
  Parameters:
  
  supplyManager - never null
  
  Returns:
  
  never null
- equals
  
  public boolean equals(Object o)
  Two instances of this class are consider equal if and only if:
  
  Their meter instances are equal.
  
  Their child selectors are equal.
  
  Their replaying origin entity selectors are equal.
  
  Otherwise as defined by Object.equals(Object).
  Overrides:
  
  equals in class Object
  
  See Also:
  
  for how we ensure equality for meter instances in particular and selectors in general.
- hashCode
  
  public int hashCode()
  
  Overrides:
  
  hashCode in class Object

Class NearbyDistanceMatrixDemand<Solution_,Origin_,Destination_>

Constructor Summary