# Package org.cpsolver.ifs.constant

Extension of the model with constant variables.

See: Description

- Interface Summary
  Interface | Description
  --- | ---
  ConstantVariable<T extends Value<?,T>> | Extension of a variable with the possibility to have a constant value.

- Class Summary
  Class | Description
  --- | ---
  ConstantModel<V extends Variable<V,T>,T extends Value<V,T>> | Extension of the model with constant variables.

## Package org.cpsolver.ifs.constant Description

Extension of the model with constant variables.
Such variables are excluded from the solver process, however, they can be included in constraints. Such model can allow us to build a solution on top of another solution (e.g., committed classes in the course timetabling).