org.onosproject.net.intent

Interface Constraint

All Known Implementing Classes:

AnnotationConstraint, AsymmetricPathConstraint, BandwidthConstraint, BooleanConstraint, DomainConstraint, EncapsulationConstraint, HashedPathSelectionConstraint, LatencyConstraint, LinkTypeConstraint, MarkerConstraint, NonDisruptiveConstraint, ObstacleConstraint, PartialFailureConstraint, PathViabilityConstraint, ProtectedConstraint, ProtectionConstraint, WaypointConstraint

@Beta
public interface Constraint

Representation of a connectivity constraint capable of evaluating a link and determining the cost of traversing that link in the context of this constraint.

Method Summary

Modifier and Type	Method and Description
double	cost(Link link, ResourceContext context) Evaluates the specified link and provides the cost for its traversal.
boolean	validate(Path path, ResourceContext context) Validates that the specified path satisfies the constraint.

Method Detail

cost

double cost(Link link,
            ResourceContext context)

Evaluates the specified link and provides the cost for its traversal.

Parameters:

link - link to be evaluated

context - resource context for validating availability of resources

Returns:

cost of link traversal

validate

boolean validate(Path path,
                 ResourceContext context)

Validates that the specified path satisfies the constraint.

Parameters:

path - path to be validated

context - resource context for validating availability of resources

Returns:

cost of link traversal