## Uses of Interface
org.optaplanner.core.impl.domain.variable.listener.VariableListener

- Packages that use VariableListener
  Package | Description
  --- | ---
  org.optaplanner.core.impl.domain.variable.anchor |
  org.optaplanner.core.impl.domain.variable.inverserelation |
  org.optaplanner.core.impl.domain.variable.listener |

- - ### Uses of VariableListener in org.optaplanner.core.impl.domain.variable.anchor

    Classes in org.optaplanner.core.impl.domain.variable.anchor that implement VariableListener
    Modifier and Type | Class | Description
    --- | --- | ---
    `class` | `AnchorVariableListener<Solution_>` |
    `class` | `ExternalizedAnchorVariableSupply` | Alternative to `AnchorVariableListener`.

    Methods in org.optaplanner.core.impl.domain.variable.anchor that return VariableListener
    Modifier and Type | Method | Description
    --- | --- | ---
    `VariableListener` | AnchorShadowVariableDescriptor.`buildVariableListener​(InnerScoreDirector<Solution_> scoreDirector)` |

    Methods in org.optaplanner.core.impl.domain.variable.anchor that return types with arguments of type VariableListener
    Modifier and Type | Method | Description
    --- | --- | ---
    `Class<? extends VariableListener>` | AnchorShadowVariableDescriptor.`getVariableListenerClass()` |

  - ### Uses of VariableListener in org.optaplanner.core.impl.domain.variable.inverserelation

    Classes in org.optaplanner.core.impl.domain.variable.inverserelation that implement VariableListener
    Modifier and Type | Class | Description
    --- | --- | ---
    `class` | `CollectionInverseVariableListener` |
    `class` | `ExternalizedCollectionInverseVariableSupply` | Alternative to `CollectionInverseVariableListener`.
    `class` | `ExternalizedSingletonInverseVariableSupply` | Alternative to `SingletonInverseVariableListener`.
    `class` | `SingletonInverseVariableListener` |

    Methods in org.optaplanner.core.impl.domain.variable.inverserelation that return VariableListener
    Modifier and Type | Method | Description
    --- | --- | ---
    `VariableListener` | InverseRelationShadowVariableDescriptor.`buildVariableListener​(InnerScoreDirector<Solution_> scoreDirector)` |

    Methods in org.optaplanner.core.impl.domain.variable.inverserelation that return types with arguments of type VariableListener
    Modifier and Type | Method | Description
    --- | --- | ---
    `Class<? extends VariableListener>` | InverseRelationShadowVariableDescriptor.`getVariableListenerClass()` |

  - ### Uses of VariableListener in org.optaplanner.core.impl.domain.variable.listener

    Subinterfaces of VariableListener in org.optaplanner.core.impl.domain.variable.listener
    Modifier and Type | Interface | Description
    --- | --- | ---
    `interface` | `SourcedVariableListener<Entity_>` | Often used to externalize data for a `Supply` from the domain model itself.
    `interface` | `StatefulVariableListener<Entity_>` | Deprecated. `VariableListener` can now be stateful too.