org.onlab.graph

Interface EdgeWeigher<V extends Vertex,E extends Edge<V>>

All Known Subinterfaces:

LinkWeigher

All Known Implementing Classes:

DefaultEdgeWeigher, GeoDistanceLinkWeight, HopCountLinkWeigher, MetricLinkWeight

public interface EdgeWeigher<V extends Vertex,E extends Edge<V>>

Abstraction of a graph edge weight function.

Method Summary

Modifier and Type	Method and Description
Weight	getInitialWeight() Returns initial weight value (i.e.
Weight	getNonViableWeight() Returns weight of a link/path that should be skipped (can be considered as an infinite weight).
Weight	weight(E edge) Returns the weight of the given edge.

Method Detail

weight

Weight weight(E edge)

Returns the weight of the given edge.

Parameters:

edge - edge to be weighed

Returns:

edge weight

getInitialWeight

Weight getInitialWeight()

Returns initial weight value (i.e. weight of a "path" starting and terminating in the same vertex; typically 0 value is used).

Returns:

null path weight

getNonViableWeight

Weight getNonViableWeight()

Returns weight of a link/path that should be skipped (can be considered as an infinite weight).

Returns:

non viable weight