org.optaplanner.core.api.score.stream

Interface Constraint

All Known Implementing Classes:

AbstractConstraint, BavetConstraint, DroolsConstraint

public interface Constraint

This represents a single constraint in the ConstraintStream API that impacts the Score. It is defined in ConstraintProvider.defineConstraints(ConstraintFactory) by calling ConstraintFactory.from(Class).

Method Summary

Modifier and Type	Method and Description
ConstraintFactory	getConstraintFactory() The ConstraintFactory that build this.
default String	getConstraintId() The constraint id is the constraint package concatenated with "/" and the constraint name.
String	getConstraintName() The constraint name.
String	getConstraintPackage() The constraint package is the namespace of the constraint.

Method Detail

getConstraintFactory

ConstraintFactory getConstraintFactory()

The ConstraintFactory that build this.

Returns:

never null

getConstraintPackage

String getConstraintPackage()

The constraint package is the namespace of the constraint.

When using a ConstraintConfiguration, it is equal to the ConstraintWeight.constraintPackage().

Returns:

never null

getConstraintName

String getConstraintName()

The constraint name. It might not be unique, but getConstraintId() is unique.

When using a ConstraintConfiguration, it is equal to the ConstraintWeight.value().

Returns:

never null

getConstraintId

default String getConstraintId()

The constraint id is the constraint package concatenated with "/" and the constraint name. It is unique.

Returns:

never null