## Uses of Class
org.optaplanner.core.api.domain.variable.PlanningVariableReference

- Packages that use PlanningVariableReference
  Package | Description
  --- | ---
  org.optaplanner.core.api.domain.variable | Domain annotations and support classes for a planning variable.

- - ### Uses of PlanningVariableReference in org.optaplanner.core.api.domain.variable

    Methods in org.optaplanner.core.api.domain.variable that return PlanningVariableReference
    Modifier and Type | Method | Description
    --- | --- | ---
    `PlanningVariableReference[]` | `sources()` | The source variables (masters) that trigger a change to this shadow variable (slave).
    `PlanningVariableReference` | `variableListenerRef()` | Use this when this shadow variable is updated by the `VariableListener` of another `CustomShadowVariable`.