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## org.optaplanner.core.impl.domain.valuerange.descriptor
Class FromEntityPropertyValueRangeDescriptor

    java.lang.Object
      org.optaplanner.core.impl.domain.valuerange.descriptor.AbstractValueRangeDescriptor
          org.optaplanner.core.impl.domain.valuerange.descriptor.AbstractFromPropertyValueRangeDescriptor
              org.optaplanner.core.impl.domain.valuerange.descriptor.FromEntityPropertyValueRangeDescriptor

All Implemented Interfaces:
  ValueRangeDescriptor

    public class FromEntityPropertyValueRangeDescriptor

extends AbstractFromPropertyValueRangeDescriptor

Field Summary

Fields inherited from class org.optaplanner.core.impl.domain.valuerange.descriptor.AbstractFromPropertyValueRangeDescriptor
`collectionWrapping, countable, readMethodAccessor`

Fields inherited from class org.optaplanner.core.impl.domain.valuerange.descriptor.AbstractValueRangeDescriptor
`addNullInValueRange, variableDescriptor`

Constructor Summary
`FromEntityPropertyValueRangeDescriptor(GenuineVariableDescriptor variableDescriptor, boolean addNullInValueRange, Method readMethod)`

Method Summary
`ValueRange<?>` | `extractValueRange(Solution solution, Object entity)`
`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.AbstractFromPropertyValueRangeDescriptor
`isCountable, readValueRange`

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`

Constructor Detail

### FromEntityPropertyValueRangeDescriptor

    public FromEntityPropertyValueRangeDescriptor(GenuineVariableDescriptor variableDescriptor,
                                                  boolean addNullInValueRange,
                                                  Method readMethod)

Method Detail

### 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`.

  Returns:
    true if the `ValueRange` is the same for all entities of the same solution

### extractValueRange

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

  Parameters:
    `solution` - never null
    `entity` - never null. To avoid this parameter, use `EntityIndependentValueRangeDescriptor.extractValueRange(Solution)` instead.
  Returns:
    never null

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