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:

$Id$

Author:

Michael Shilman

Pt.AcceptedRating:

Red

Method Summary

All Methods Instance Methods Abstract Methods
Modifier and Type	Method	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.