diva.graph.modular

Interface EdgeModel

All Known Subinterfaces:

MutableEdgeModel

All Known Implementing Classes:

ActorGraphModel.LinkModel, BasicModularGraphModel.BasicEdgeModel, FSMGraphModel.ArcModel, OntologyGraphModel.RelationModel

public interface EdgeModel

An edge is an object that is contained by a graph and connects nodes. An edge has a "head" and a "tail" as if it was directed, but also has a method isDirected() that says whether or not the edge should be treated as directed (e.g. should there be an arrow drawn on the head). An edge has a semantic object that is its semantic equivalent in the application and may have a visual object which is its syntactic representation in the user interface.

Version:

$Id: EdgeModel.java 38798 2005-07-08 20:00:01Z cxh $

Author:

Michael Shilman

Accepted Rating:

Red

Method Summary

Modifier and Type	Method and Description
java.lang.Object	getHead(java.lang.Object edge) Return the node at the head of this edge.
java.lang.Object	getTail(java.lang.Object edge) Return the node at the tail of this edge.
boolean	isDirected(java.lang.Object edge) Return whether or not this edge is directed.

Method Detail

getHead

java.lang.Object getHead(java.lang.Object edge)

Return the node at the head of this edge.

getTail

java.lang.Object getTail(java.lang.Object edge)

Return the node at the tail of this edge.

isDirected

boolean isDirected(java.lang.Object edge)

Return whether or not this edge is directed.