# Package org.optaplanner.core.api.score.calculator

- Interface Summary
  Interface | Description
  --- | ---
  ConstraintMatchAwareIncrementalScoreCalculator<Solution_,Score_ extends Score> | Allows a `IncrementalScoreCalculator` to report `ConstraintMatchTotal`s for explaining a score (= which score constraints match for how much) and also for score corruption analysis.
  EasyScoreCalculator<Solution_,Score_ extends Score> | Used for easy java `Score` calculation.
  IncrementalScoreCalculator<Solution_,Score_ extends Score> | Used for incremental java `Score` calculation.

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