org.geotools.graph.structure.opt
Class OptDirectedEdge

java.lang.Object
  org.geotools.graph.structure.opt.OptGraphable
      org.geotools.graph.structure.opt.OptDirectedEdge

All Implemented Interfaces:

DirectedEdge, DirectedGraphable, Edge, Graphable, java.io.Serializable

public class OptDirectedEdge

extends OptGraphable

implements DirectedEdge

Optimized implementation of DirectedEdge.

Author:

Justin Deoliveira, Refractions Research Inc, jdeolive@refractions.net

See Also:

DirectedEdge, Serialized Form

Nested Class Summary

class

OptDirectedEdge.RelatedIterator Iterator used to iterate over adjacent edges.

Field Summary

Fields inherited from interface org.geotools.graph.structure.Edge

EQUAL_NODE_ORIENTATION, OPPOSITE_NODE_ORIENTATION, UNEQUAL_NODE_ORIENTATION

Constructor Summary

OptDirectedEdge(OptDirectedNode in, OptDirectedNode out)
Constructs a new OptDirectedEdge.

Method Summary

int	compareNodes(Edge other) Compares the node orientation of the edge with another edge.
DirectedNode	getInNode() Returns the originating (in) node of the edge.
java.util.Iterator	getInRelated() Returns other components related through an in relationship.
Node	getNodeA() Returns the A node of the edge.
Node	getNodeB() Returns the B node of the edge.
Node	getOtherNode(Node node) Returns one of the two nodes of an edge.
DirectedNode	getOutNode() Returns the terminating (out) node of the edge.
java.util.Iterator	getOutRelated() Returns other components related through an out relationship.
java.util.Iterator	getRelated() Returns an iterator over any related components.
void	reverse() Unsupported Operation.

Methods inherited from class org.geotools.graph.structure.opt.OptGraphable

getCount, getID, getObject, isVisited, setCount, setID, setObject, setVisited

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Methods inherited from interface org.geotools.graph.structure.Graphable

getCount, getID, getObject, isVisited, setCount, setID, setObject, setVisited

Constructor Detail

OptDirectedEdge

public OptDirectedEdge(OptDirectedNode in,
                       OptDirectedNode out)

Constructs a new OptDirectedEdge.

Parameters:

in - Optimized in node.

out - Optimized out node.

Method Detail

getInNode

public DirectedNode getInNode()

Description copied from interface: DirectedEdge

Returns the originating (in) node of the edge.

Specified by:

getInNode in interface DirectedEdge

Returns:

The directed node at the source of the edge.

See Also:

DirectedEdge.getInNode()

getOutNode

public DirectedNode getOutNode()

Description copied from interface: DirectedEdge

Returns the terminating (out) node of the edge.

Specified by:

getOutNode in interface DirectedEdge

Returns:

The directed node at the destination of the edge.

See Also:

DirectedEdge.getOutNode()

getNodeA

public Node getNodeA()

Description copied from interface: Edge

Returns the A node of the edge.

Specified by:

getNodeA in interface Edge

Returns:

The A node.

See Also:

Edge.getNodeA()

getNodeB

public Node getNodeB()

Description copied from interface: Edge

Returns the B node of the edge.

Specified by:

getNodeB in interface Edge

Returns:

The B node.

See Also:

Edge.getNodeB()

getOtherNode

public Node getOtherNode(Node node)

Description copied from interface: Edge

Returns one of the two nodes of an edge. If the specified node is node A, then node B is returned, and vice versa.

Specified by:

getOtherNode in interface Edge

Parameters:

node - The node opposite of the node to return.

Returns:

Node A if node B is specified, node B if node A is specified.

See Also:

Edge.getOtherNode(Node)

reverse

public void reverse()

Unsupported Operation.

Specified by:

reverse in interface Edge

Throws:

java.lang.UnsupportedOperationException

compareNodes

public int compareNodes(Edge other)

Description copied from interface: Edge

Compares the node orientation of the edge with another edge.

Specified by:

compareNodes in interface Edge

Returns:

EQUAL_NODE_ORIENTATION : both nodes are equal in the correct order. UNEQUAL_NODE_ORIENTATION: both nodes are not equal OPPOSITE_NODE_ORIENTATION : both nodes are equal in opposite order.

See Also:

Edge.compareNodes(Edge)

getRelated

public java.util.Iterator getRelated()

Description copied from interface: Graphable

Returns an iterator over any related components. A graph component is related to other components of the graph of similary type through some relationship.

Specified by:

getRelated in interface Graphable

Returns:

Iterator An iterator over other components of the graph that are related to the component.

See Also:

Graphable.getRelated()

getInRelated

public java.util.Iterator getInRelated()

Description copied from interface: DirectedGraphable

Returns other components related through an in relationship.

Specified by:

getInRelated in interface DirectedGraphable

Returns:

An iterator over the other directed components related through an in relationship.

See Also:

DirectedGraphable.getInRelated()

getOutRelated

public java.util.Iterator getOutRelated()

Description copied from interface: DirectedGraphable

Returns other components related through an out relationship.

Specified by:

getOutRelated in interface DirectedGraphable

Returns:

An iterator over the other directed components related through an out relationship.

See Also:

DirectedGraphable.getOutRelated()