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Java Source Code / Java Documentation » GIS » GeoTools 2.4.1 » org.geotools.graph.structure

Source Cross Reference

Class Diagram

Java Document (Java Doc)

org.geotools.graph.structure .DirectedNode

All known Subclasses:   org.geotools.graph.structure.basic .BasicDirectedNode,  org.geotools.graph.structure.opt .OptDirectedNode,
DirectedNode
public interface DirectedNode extends Node,DirectedGraphable(Code)
Represents a node in a directed graph. A directed node differentiates between adjacent edges that start at the node and those adjacent edges that terminate at the node. The former are referred to as "in" edges, and the latter "out" edges.
See Also:   DirectedGraph
author:
   Justin Deoliveira, Refractions Research Inc, jdeolive@refractions.net

Method Summary
public void addIn(DirectedEdge e)
     Adds an edge to the in adjacency list of the node.
public void addOut(DirectedEdge e)
     Adds an edge to the out adjacency list of the node.
public int getInDegree()
     Returns the in degree of the node.
public Edge getInEdge(DirectedNode other)
     Returns an edge that terminates at the node and originates from a specified node.
public List getInEdges(DirectedNode other)
     Returns all edges that terminate at the node and originate from a specified node.
public List getInEdges()
     Returns the in adjacency list of the node.
public int getOutDegree()
     Returns the out degree of the node. The number of edges that originate at the node.
public Edge getOutEdge(DirectedNode other)
     Returns an edge that originates at the node and terminates at a specified node.
public List getOutEdges(DirectedNode other)
     Returns all edges that originate at the node and terminate from at specified node.
public List getOutEdges()
     Returns the out adjacency list of the node.
public void removeIn(DirectedEdge e)
     Removes an edge from the in adjacency list of the node.
public void removeOut(DirectedEdge e)
     Removes an edge from the out adjacency list of node.

Method Detail
addIn
public void addIn(DirectedEdge e)(Code)
Adds an edge to the in adjacency list of the node.
Parameters:
  e - A directed edge that terminates at the node.
See Also:   Node.add(Edge)

addOut
public void addOut(DirectedEdge e)(Code)
Adds an edge to the out adjacency list of the node.
Parameters:
  e - A directed edge that originates from the node.
See Also:   Node.add(Edge)

getInDegree
public int getInDegree()(Code)
Returns the in degree of the node. The number of edges that terminate at the node.

getInEdge
public Edge getInEdge(DirectedNode other)(Code)
Returns an edge that terminates at the node and originates from a specified node.

Note: It is possible for two nodes to share multiple edges between them. In this case, getInEdges(Node other) can be used to obtain a complete list.
Parameters:
  other - The originating node. The first edge found to terminate at the node and originate from the specefied node.
See Also:   Node.getEdge(Node)

getInEdges
public List getInEdges(DirectedNode other)(Code)
Returns all edges that terminate at the node and originate from a specified node.
Parameters:
  other - The originating node. All edges found to terminate at the node and originate from thespecified node.
See Also:   Node.getEdges(Node)

getInEdges
public List getInEdges()(Code)
Returns the in adjacency list of the node. A list of edges that terminate at the node.
See Also:   Node.getEdges

getOutDegree
public int getOutDegree()(Code)
Returns the out degree of the node. The number of edges that originate at the node.

getOutEdge
public Edge getOutEdge(DirectedNode other)(Code)
Returns an edge that originates at the node and terminates at a specified node.

Note: It is possible for two nodes to share multiple edges between them. In this case, getOutEdges(Node other) can be used to obtain a complete list.
Parameters:
  other - The terminating node. The first edge found to originate at the node and terminate at the specefied node.
See Also:   Node.getEdge(Node)

getOutEdges
public List getOutEdges(DirectedNode other)(Code)
Returns all edges that originate at the node and terminate from at specified node.
Parameters:
  other - The temimnating node. All edges found to originate at the node and terminate at thespecified node.
See Also:   Node.getEdges(Node)

getOutEdges
public List getOutEdges()(Code)
Returns the out adjacency list of the node. A list of edges originating at the node.
See Also:   Node.getEdges

removeIn
public void removeIn(DirectedEdge e)(Code)
Removes an edge from the in adjacency list of the node.
Parameters:
  e - A directed edge that terminates at the node.
See Also:   Node.remove(Edge)

removeOut
public void removeOut(DirectedEdge e)(Code)
Removes an edge from the out adjacency list of node.
Parameters:
  e - A directed edge that originates from the node.
See Also:   Node.remove(Edge)

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