: Interface EdgeModel

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diva.graph.modular
Interface EdgeModel

All Known Subinterfaces:: MutableEdgeModel

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.

Method Summary

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

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

Return the node at the head of this edge.

getTail

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

Return the node at the tail of this edge.

isDirected

public boolean isDirected(java.lang.Object edge)

Return whether or not this edge is directed.