Package org.geotools.graph.structure.opt

Class OptEdge

Object

OptGraphable

OptEdge

All Implemented Interfaces:

Serializable, Edge, Graphable

public class OptEdge
extends OptGraphable
implements Edge

Optimized implementation of Edge.

Author:

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

See Also:

• Edge
• Serialized Form

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
class	OptEdge.RelatedIterator

Field Summary

Fields inherited from interface Edge

EQUAL_NODE_ORIENTATION, OPPOSITE_NODE_ORIENTATION, UNEQUAL_NODE_ORIENTATION

Constructor Summary

Constructors

Constructor	Description
OptEdge(OptNode nodeA, OptNode nodeB)	Constructs a new optimized edge.

Method Summary

Modifier and Type	Method	Description
int	compareNodes(Edge other)	Compares the node orientation of the edge with another edge.
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.
Iterator<Edge>	getRelated()	Returns an iterator over any related components.
void	reverse()	Reverses the node orientation of the edge.

Methods inherited from class OptGraphable

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

Methods inherited from class Object

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

Methods inherited from interface Graphable

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

Constructor Details

OptEdge

public OptEdge(OptNode nodeA,
 OptNode nodeB)

Constructs a new optimized edge.

Parameters:

nodeA - A node of edge.

nodeB - B node of edge.

Method Details

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()

Description copied from interface: Edge

Reverses the node orientation of the edge.

Specified by:

reverse in interface Edge

See Also:

• Edge.reverse()

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 Iterator<Edge> 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()