org.optaplanner.core.impl.domain.valuerange.descriptor

## Class CompositeValueRangeDescriptor<Solution_>

- java.lang.Object
- - org.optaplanner.core.impl.domain.valuerange.descriptor.AbstractValueRangeDescriptor<Solution_>
  - - org.optaplanner.core.impl.domain.valuerange.descriptor.CompositeValueRangeDescriptor<Solution_>

- Type Parameters:
    `Solution_` - the solution type, the class with the `PlanningSolution` annotation
  All Implemented Interfaces:
    EntityIndependentValueRangeDescriptor<Solution_>, ValueRangeDescriptor<Solution_>

      public class CompositeValueRangeDescriptor<Solution_>
      extends AbstractValueRangeDescriptor<Solution_>
      implements EntityIndependentValueRangeDescriptor<Solution_>

- - ### Field Summary

    Fields
    Modifier and Type | Field and Description
    --- | ---
    `protected List<ValueRangeDescriptor<Solution_>>` | `childValueRangeDescriptorList`
    `protected boolean` | `entityIndependent`

    - ### Fields inherited from class org.optaplanner.core.impl.domain.valuerange.descriptor.AbstractValueRangeDescriptor

      `addNullInValueRange, variableDescriptor`

  - ### Constructor Summary

    Constructors
    Constructor and Description
    `CompositeValueRangeDescriptor(GenuineVariableDescriptor<Solution_> variableDescriptor, boolean addNullInValueRange, List<ValueRangeDescriptor<Solution_>> childValueRangeDescriptorList)`

  - ### Method Summary

    All Methods Instance Methods Concrete Methods
    Modifier and Type | Method and Description
    --- | ---
    `ValueRange<?>` | `extractValueRange(Solution_ solution)` As specified by `ValueRangeDescriptor.extractValueRange(Solution_, java.lang.Object)`.
    `ValueRange<?>` | `extractValueRange(Solution_ solution, Object entity)`
    `boolean` | `isCountable()`
    `boolean` | `isEntityIndependent()` If this method return true, this instance is safe to cast to `EntityIndependentValueRangeDescriptor`, otherwise it requires an entity to determine the `ValueRange`.

    - ### Methods inherited from class org.optaplanner.core.impl.domain.valuerange.descriptor.AbstractValueRangeDescriptor

      `doNullInValueRangeWrapping, getVariableDescriptor, mightContainEntity, toString`

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

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

    - ### Methods inherited from interface org.optaplanner.core.impl.domain.valuerange.descriptor.ValueRangeDescriptor

      `getVariableDescriptor, mightContainEntity`

- - ### Field Detail

    - #### childValueRangeDescriptorList

          protected final List<ValueRangeDescriptor<Solution_>> childValueRangeDescriptorList

    - #### entityIndependent

          protected boolean entityIndependent

  - ### Constructor Detail

    - #### CompositeValueRangeDescriptor

          public CompositeValueRangeDescriptor(GenuineVariableDescriptor<Solution_> variableDescriptor,
                                               boolean addNullInValueRange,
                                               List<ValueRangeDescriptor<Solution_>> childValueRangeDescriptorList)

  - ### Method Detail

    - #### isCountable

          public boolean isCountable()

      Specified by:
        `isCountable` in interface `ValueRangeDescriptor<Solution_>`
      Returns:
        true if the `ValueRange` is countable (for example a double value range between 1.2 and 1.4 is not countable)

    - #### isEntityIndependent

          public boolean isEntityIndependent()

      Description copied from interface: `ValueRangeDescriptor`
      If this method return true, this instance is safe to cast to `EntityIndependentValueRangeDescriptor`, otherwise it requires an entity to determine the `ValueRange`.
      Specified by:
        `isEntityIndependent` in interface `ValueRangeDescriptor<Solution_>`
      Returns:
        true if the `ValueRange` is the same for all entities of the same solution

    - #### extractValueRange

          public ValueRange<?> extractValueRange(Solution_ solution,
                                                 Object entity)

      Specified by:
        `extractValueRange` in interface `ValueRangeDescriptor<Solution_>`
      Parameters:
        `solution` - never null
        `entity` - never null. To avoid this parameter, use `EntityIndependentValueRangeDescriptor.extractValueRange(Solution_)` instead.
      Returns:
        never null

    - #### extractValueRange

          public ValueRange<?> extractValueRange(Solution_ solution)

      Description copied from interface: `EntityIndependentValueRangeDescriptor`
      As specified by `ValueRangeDescriptor.extractValueRange(Solution_, java.lang.Object)`.
      Specified by:
        `extractValueRange` in interface `EntityIndependentValueRangeDescriptor<Solution_>`
      Parameters:
        `solution` - never null
      Returns:
        never null
      See Also:
        `ValueRangeDescriptor.extractValueRange(Solution_, java.lang.Object)`

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