Package org.optaplanner.core.api.score.stream

Interface ConstraintProvider

public interface ConstraintProvider

Used by Constraint Streams' Score calculation. An implementation must be stateless in order to facilitate building a single set of constraints independent of potentially changing constraint weights.

Method Summary

Modifier and Type	Method	Description
Constraint[]	defineConstraints(ConstraintFactory constraintFactory)	This method is called once to create the constraints.

Method Details

defineConstraints

Constraint[] defineConstraints(ConstraintFactory constraintFactory)

This method is called once to create the constraints. To create a Constraint, start with ConstraintFactory.forEach(Class).

Parameters:

constraintFactory - never null

Returns:

an array of all constraints that could apply. The constraints with a zero ConstraintWeight for a particular problem will be automatically disabled when scoring that problem, to improve performance.