ValueRangeDescriptor (OptaPlanner Javadoc 8.17.0.Final API)

Type Parameters:

Solution_ - the solution type, the class with the PlanningSolution annotation

All Known Subinterfaces:

EntityIndependentValueRangeDescriptor<Solution_>

All Known Implementing Classes:

AbstractFromPropertyValueRangeDescriptor, AbstractValueRangeDescriptor, CompositeValueRangeDescriptor, FromEntityPropertyValueRangeDescriptor, FromSolutionPropertyValueRangeDescriptor
```
public interface ValueRangeDescriptor<Solution_>
```

Method Summary

All Methods Instance Methods Abstract Methods
Modifier and Type	Method	Description
`ValueRange<?>`	`extractValueRange(Solution_ solution, Object entity)`
`GenuineVariableDescriptor<Solution_>`	`getVariableDescriptor()`
`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`.
`boolean`	`mightContainEntity()`

- Method Detail
  - getVariableDescriptor
```
GenuineVariableDescriptor<Solution_> getVariableDescriptor()
```
    Returns:
    
    never null
  - isCountable
```
boolean isCountable()
```
    Returns:
    
    true if the ValueRange is countable (for example a double value range between 1.2 and 1.4 is not countable)
  - isEntityIndependent
```
boolean isEntityIndependent()
```
    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
  - mightContainEntity
```
boolean mightContainEntity()
```
    Returns:
    
    true if the ValueRange might contain a planning entity instance (not necessarily of the same entity class as this entity class of this descriptor.
  - extractValueRange
```
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