com.sun.spot.peripheral.radio.mhrp.aodv.routing
Class RoutingTable

java.lang.Object
  com.sun.spot.peripheral.radio.mhrp.aodv.routing.RoutingTable

public class RoutingTable
extends Object

Version:

0.1

Author:

Allen Ajit George, Jochen Furtmueller

Method Summary

void	addRoute(long address, long nextHopMACAddress, int hopCount, int routeCost, int destSeqNumber) Create a new route entry using the parameters, then call doTableAddition()
void	addRoute(long senderMACAddress, RREP message) Create a new route entry based on a received route reply, then call doTableAddition()
void	addRoute(long senderMACAddress, RREQ message) Create a new route entry based on a received route request, then call doTableAddition()
void	cleanTable() delete all table entries that are expired
void	deactivateRoute(long originator, long destination) removes a node from the users list of a route and sets the activity flag to false
boolean	freshenRoute(long address) increases the expiry time for a route that is specified by the destination address
Vector	getAllEntries() This method provides access to the entire routing table.
int	getDestinationSequenceNumber(long address) get the destination sequence number for a certain entry
static RoutingTable	getInstance()
RouteInfo	getNextHopInfo(long address)
void	setOurAddress(long ourAddress)

Methods inherited from class java.lang.Object

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

Method Detail

getInstance

public static RoutingTable getInstance()

Returns:

instance of this singleton

getNextHopInfo

public RouteInfo getNextHopInfo(long address)

Parameters:

address - for which a route info is wanted

Returns:

routeInfo that has a valid next hop field if there was a route in the table, or a invalid next hop field if there was not

addRoute

public void addRoute(long address,
                     long nextHopMACAddress,
                     int hopCount,
                     int routeCost,
                     int destSeqNumber)

Create a new route entry using the parameters, then call doTableAddition()

Parameters:

address -

nextHopMACAddress -

hopCount -

routeCost -

destSeqNumber -

addRoute

public void addRoute(long senderMACAddress,
                     RREQ message)

Create a new route entry based on a received route request, then call doTableAddition()

Parameters:

senderMACAddress -

message -

addRoute

public void addRoute(long senderMACAddress,
                     RREP message)

Create a new route entry based on a received route reply, then call doTableAddition()

Parameters:

senderMACAddress -

message -

getDestinationSequenceNumber

public int getDestinationSequenceNumber(long address)

get the destination sequence number for a certain entry

Parameters:

address - address of the entry that we are interested in

Returns:

destinationSequenceNumber

cleanTable

public void cleanTable()

delete all table entries that are expired

freshenRoute

public boolean freshenRoute(long address)

increases the expiry time for a route that is specified by the destination address

Parameters:

address -

Returns:

true when finished

deactivateRoute

public void deactivateRoute(long originator,
                            long destination)

removes a node from the users list of a route and sets the activity flag to false

Parameters:

originator -

destination -

getAllEntries

public Vector getAllEntries()

This method provides access to the entire routing table. It can be used to monitor the state of the routing table by an application. CAUTION: As this method accesses a syncronized object, it should not be called to often.

Returns:

vector of all routing entries

setOurAddress

public void setOurAddress(long ourAddress)