cgl.narada.topology.viewer
Class LinkManagement

java.lang.Object
  cgl.narada.topology.viewer.LinkManagement

public class LinkManagement
extends Object

This class managed all the links present in the system.

Field Summary

List

links

Constructor Summary

LinkManagement()
Only constructor.

Method Summary

void	addLink(Node n1, Node n2, int linkId, String linkType) Adds a link between the specified node pair.
void	deleteAllLinks()
void	deleteAllLinksForNode(Node n) Deletes all the links emerging from the specified node.
void	deleteLink(Node n1, Node n2, int linkId) Deletes a particular link between two nodes.
void	deleteLinksForPair(Node n1, Node n2)
void	drawAllLinks(Graphics g) Draws all the links present in the system.
List	getAllLinksForNode(Node n) Returns all the links emerging from a particular node.
List	getAllLinksForPair(Node n1, Node n2) Returns all the links between a given node pair.
Color	getLinkColor(Node n1, Node n2) Gets one of the four colors depending upon the end nodes of a link
int	getLinkCount() Returns total number of links present in the system.
LinkDetails	getLinkDetails(Node n1, Node n2) Get object containing information about all the links between specified node pair.

Methods inherited from class java.lang.Object

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

Field Detail

links

public List links

Constructor Detail

LinkManagement

public LinkManagement()

Only constructor. Initialises link count.

Method Detail

addLink

public void addLink(Node n1,
                    Node n2,
                    int linkId,
                    String linkType)

Adds a link between the specified node pair. Increments the linkCount.

Parameters:

n1 - one end Noed of a link.

n2 - other end node of a link.

linkId - id of a link to be inserted.

linkType - type of a link to be inserted.

deleteLink

public void deleteLink(Node n1,
                       Node n2,
                       int linkId)
                throws TopologyException

Deletes a particular link between two nodes.

Parameters:

n1 - one end Noed of a link.

n2 - other end node of a link.

linkId - id of the link to be deleted.

Throws:

TopologyException - if specified node pair is not found.

deleteAllLinksForNode

public void deleteAllLinksForNode(Node n)

Deletes all the links emerging from the specified node.

Parameters:

n - Node whose connections are being removed.

deleteLinksForPair

public void deleteLinksForPair(Node n1,
                               Node n2)

deleteAllLinks

public void deleteAllLinks()

getLinkCount

public int getLinkCount()

Returns total number of links present in the system.

Returns:

linkCount total link count.

getAllLinksForNode

public List getAllLinksForNode(Node n)

Returns all the links emerging from a particular node.

Parameters:

n - Node of which connections are being returned.

Returns:

List of all the links emerging from specified node.

getAllLinksForPair

public List getAllLinksForPair(Node n1,
                               Node n2)

Returns all the links between a given node pair.

Parameters:

n1 - one Node of a pair.

n2 - other Node of a pair.

Returns:

List containing String representations of all the links between specified pair.

getLinkDetails

public LinkDetails getLinkDetails(Node n1,
                                  Node n2)

Get object containing information about all the links between specified node pair.

Parameters:

n1 - one end Node of a link.

n2 - other end Node of a link.

Returns:

LinkDetails object for a specified node pair.

drawAllLinks

public void drawAllLinks(Graphics g)

Draws all the links present in the system.

Parameters:

g - Graphics object pertaining to the image being drawn.

getLinkColor

public Color getLinkColor(Node n1,
                          Node n2)

Gets one of the four colors depending upon the end nodes of a link

Parameters:

n1 - one end Node of a link.

n2 - other end Node of a link.

Returns:

Color object for the link between specified node pair.