Package org.optaplanner.core.api.score.buildin.simple

## Class SimpleScoreHolder

- java.lang.Object
- - org.optaplanner.core.api.score.holder.AbstractScoreHolder<SimpleScore>
  - - org.optaplanner.core.api.score.buildin.simple.SimpleScoreHolder

- All Implemented Interfaces:
    `Serializable`, `ScoreHolder<SimpleScore>`

      public class SimpleScoreHolder
      extends AbstractScoreHolder<SimpleScore>

  See Also:
    `SimpleScore`, Serialized Form

- - ### Nested Class Summary

    - ### Nested classes/interfaces inherited from class org.optaplanner.core.api.score.holder.AbstractScoreHolder

      `AbstractScoreHolder.ConstraintActivationUnMatchListener`

  - ### Field Summary

    Fields
    Modifier and Type | Field | Description
    --- | --- | ---
    `protected Map<org.kie.api.definition.rule.Rule,​BiConsumer<org.kie.api.runtime.rule.RuleContext,​Integer>>` | `matchExecutorByNumberMap` |
    `protected int` | `score` |

    - ### Fields inherited from class org.optaplanner.core.api.score.holder.AbstractScoreHolder

      `constraintMatchEnabled, constraintMatchTotalMap, indictmentMap, zeroScore`

  - ### Constructor Summary

    Constructors
    Constructor | Description
    --- | ---
    `SimpleScoreHolder​(boolean constraintMatchEnabled)` |

  - ### Method Summary

    All Methods Instance Methods Concrete Methods
    Modifier and Type | Method | Description
    --- | --- | ---
    `void` | `addConstraintMatch​(org.kie.api.runtime.rule.RuleContext kcontext, int weight)` |
    `void` | `configureConstraintWeight​(org.kie.api.definition.rule.Rule rule, SimpleScore constraintWeight)` | Sets up a `ConstraintWeight` from the `ConstraintConfiguration` during initialization.
    `SimpleScore` | `extractScore​(int initScore)` | Extracts the `Score`, calculated by the `KieSession` for `DroolsScoreDirector`.
    `int` | `getScore()` |
    `void` | `impactScore​(org.kie.api.runtime.rule.RuleContext kcontext)` | For internal use only, use penalize() or reward() instead.
    `void` | `impactScore​(org.kie.api.runtime.rule.RuleContext kcontext, int weightMultiplier)` | For internal use only, use penalize() or reward() instead.
    `void` | `penalize​(org.kie.api.runtime.rule.RuleContext kcontext)` | Penalize a match by the `ConstraintWeight` negated.
    `void` | `penalize​(org.kie.api.runtime.rule.RuleContext kcontext, int weightMultiplier)` | Penalize a match by the `ConstraintWeight` negated and multiplied with the weightMultiplier for all score levels.
    `void` | `reward​(org.kie.api.runtime.rule.RuleContext kcontext)` | Reward a match by the `ConstraintWeight`.
    `void` | `reward​(org.kie.api.runtime.rule.RuleContext kcontext, int weightMultiplier)` | Reward a match by the `ConstraintWeight` multiplied with the weightMultiplier for all score levels.

    - ### Methods inherited from class org.optaplanner.core.api.score.holder.AbstractScoreHolder

      `extractJustificationList, getConstraintMatchTotalMap, getConstraintMatchTotals, getIndictmentMap, impactScore, impactScore, isConstraintMatchEnabled, registerConstraintMatch, setJustificationListConverter`

    - ### Methods inherited from class java.lang.Object

      `clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait`

- - ### Field Detail

    - #### matchExecutorByNumberMap

          protected final Map<org.kie.api.definition.rule.Rule,​BiConsumer<org.kie.api.runtime.rule.RuleContext,​Integer>> matchExecutorByNumberMap

    - #### score

          protected int score

  - ### Constructor Detail

    - #### SimpleScoreHolder

          public SimpleScoreHolder​(boolean constraintMatchEnabled)

  - ### Method Detail

    - #### getScore

          public int getScore()

    - #### configureConstraintWeight

          public void configureConstraintWeight​(org.kie.api.definition.rule.Rule rule,
                                                SimpleScore constraintWeight)

      Description copied from interface: `ScoreHolder`
      Sets up a `ConstraintWeight` from the `ConstraintConfiguration` during initialization.
      Specified by:
        `configureConstraintWeight` in interface `ScoreHolder<SimpleScore>`
      Overrides:
        `configureConstraintWeight` in class `AbstractScoreHolder<SimpleScore>`
      Parameters:
        `rule` - never null
        `constraintWeight` - never null, with `Score.getInitScore()` equal to 0.

    - #### penalize

          public void penalize​(org.kie.api.runtime.rule.RuleContext kcontext)

      Penalize a match by the `ConstraintWeight` negated.
      Parameters:
        `kcontext` - never null, the magic variable in DRL

    - #### penalize

          public void penalize​(org.kie.api.runtime.rule.RuleContext kcontext,
                               int weightMultiplier)

      Penalize a match by the `ConstraintWeight` negated and multiplied with the weightMultiplier for all score levels.
      Parameters:
        `kcontext` - never null, the magic variable in DRL
        `weightMultiplier` - at least 0

    - #### reward

          public void reward​(org.kie.api.runtime.rule.RuleContext kcontext)

      Reward a match by the `ConstraintWeight`.
      Parameters:
        `kcontext` - never null, the magic variable in DRL

    - #### reward

          public void reward​(org.kie.api.runtime.rule.RuleContext kcontext,
                             int weightMultiplier)

      Reward a match by the `ConstraintWeight` multiplied with the weightMultiplier for all score levels.
      Parameters:
        `kcontext` - never null, the magic variable in DRL
        `weightMultiplier` - at least 0

    - #### impactScore

          public void impactScore​(org.kie.api.runtime.rule.RuleContext kcontext)

      Description copied from class: `AbstractScoreHolder`
      For internal use only, use penalize() or reward() instead.
      Overrides:
        `impactScore` in class `AbstractScoreHolder<SimpleScore>`
      Parameters:
        `kcontext` - never null

    - #### impactScore

          public void impactScore​(org.kie.api.runtime.rule.RuleContext kcontext,
                                  int weightMultiplier)

      Description copied from class: `AbstractScoreHolder`
      For internal use only, use penalize() or reward() instead.
      Overrides:
        `impactScore` in class `AbstractScoreHolder<SimpleScore>`
      Parameters:
        `kcontext` - never null
        `weightMultiplier` - any

    - #### addConstraintMatch

          public void addConstraintMatch​(org.kie.api.runtime.rule.RuleContext kcontext,
                                         int weight)

      Parameters:
        `kcontext` - never null, the magic variable in DRL
        `weight` - higher is better, negative for a penalty, positive for a reward

    - #### extractScore

          public SimpleScore extractScore​(int initScore)

      Description copied from interface: `ScoreHolder`
      Extracts the `Score`, calculated by the `KieSession` for `DroolsScoreDirector`.

      Should not be called directly, use `ScoreDirector.calculateScore()` instead.

      Parameters:
        `initScore` - `<= 0`, managed by OptaPlanner, needed as a parameter in the `Score`'s creation method, see `Score.getInitScore()`
      Returns:
        never null, the `Score` of the working `PlanningSolution`