org.optaplanner.core.impl.heuristic.selector.common.nearby

## Interface NearbyDistanceMeter<O,D>

-     public interface NearbyDistanceMeter<O,D>

- - ### Method Summary

    All Methods Instance Methods Abstract Methods
    Modifier and Type | Method and Description
    --- | ---
    `double` | `getNearbyDistance(O origin, D destination)` Measures the distance from the origin to the destination.

- - ### Method Detail

    - #### getNearbyDistance

          double getNearbyDistance(O origin,
                                   D destination)

      Measures the distance from the origin to the destination. The distance can be in any unit, such a meters, foot, seconds or milliseconds. For example, vehicle routing often uses driving time in seconds.

      Distances can be asymmetrical: the distance from an origin to a destination often differs from the distance from that destination to that origin.

      Parameters:
        `origin` - never null
        `destination` - never null
      Returns:
        Preferably always `>= 0.0`. If origin == destination, it usually returns 0.0.

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