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## org.optaplanner.core.impl.domain.variable.inverserelation
Interface SingletonInverseVariableSupply

All Superinterfaces:
  Supply

All Known Implementing Classes:
  ExternalizedSingletonInverseVariableSupply, SingletonInverseVariableListener

    public interface SingletonInverseVariableSupply

extends Supply

Currently only supported for chained variables, which guarantee that no 2 entities use the same planningValue.

Method Summary
`Object` | `getInverseSingleton(Object planningValue)` If entity1.varA = x then the inverse of x is entity1.

Method Detail

### getInverseSingleton

    Object getInverseSingleton(Object planningValue)

  If entity1.varA = x then the inverse of x is entity1.

  Parameters:
    `planningValue` - never null
  Returns:
    sometimes null, an entity for which the planning variable is the planningValue.

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