com.sun.spot.peripheral.radio.mhrp.aodv.request
Class RequestTable

java.lang.Object
  com.sun.spot.peripheral.radio.mhrp.aodv.request.RequestTable

public class RequestTable
extends Object

Version:

0.1

Author:

Allen Ajit George

Method Summary

boolean	addRREQ(RREQ message, RouteEventClient eventClient, Object uniqueKey) add a route request to the request table
void	cleanTable() This method removes all outstanding request that are expired
RequestEntry	findRequest(long destAddr, long origAddr, int reqID, boolean active) Helper function to search for an existing (active) entry
RouteEventClient	getCallback(RREP message) This method provides access to the client that interested in the route reply message that is passed as an argument
static RequestTable	getInstance() provides the instance of this singleton
static int	getNextRREQID() get the next route request ID
boolean	hasActiveRequest(RREP message) this method tells the caller if the request table already has an entry for the destination of this route request and it is currently active
boolean	hasActiveRequest(RREQ message) this method tells the caller if the request table already has an entry for the destination of this route request and it is currently active
boolean	hasRequest(RREP message) this method tells the caller if the request table already has an entry for the destination of this route reply
boolean	hasRequest(RREQ message) this method tells the caller if the request table already has an entry for the destination of this route request
void	removeOutstandingRequest(long destination, long originator, int reqID) this method removes an outstanding request from the table
void	setOurAddress(long ourAddress)
void	start()
void	stop()

Methods inherited from class java.lang.Object

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

Method Detail

start

public void start()

stop

public void stop()

getInstance

public static RequestTable getInstance()

provides the instance of this singleton

getNextRREQID

public static int getNextRREQID()

get the next route request ID

Returns:

nextRREQID

addRREQ

public boolean addRREQ(RREQ message,
                       RouteEventClient eventClient,
                       Object uniqueKey)

add a route request to the request table

Parameters:

message - the rreq that should be added

eventClient - the instance that caused this route request

uniqueKey - identifier for this rreq

Returns:

true when ready

findRequest

public RequestEntry findRequest(long destAddr,
                                long origAddr,
                                int reqID,
                                boolean active)

Helper function to search for an existing (active) entry

Parameters:

destAddr -

origAddr -

reqID - if non-zero then must match request ID

active - if true then only match active requests

Returns:

the request entry that is a match if found

hasActiveRequest

public boolean hasActiveRequest(RREQ message)

this method tells the caller if the request table already has an entry for the destination of this route request and it is currently active

Parameters:

message -

Returns:

hasActiveRequest

hasActiveRequest

public boolean hasActiveRequest(RREP message)

this method tells the caller if the request table already has an entry for the destination of this route request and it is currently active

Parameters:

message -

Returns:

hasActiveRequest

hasRequest

public boolean hasRequest(RREQ message)

this method tells the caller if the request table already has an entry for the destination of this route request

Parameters:

message -

Returns:

hasRequest

hasRequest

public boolean hasRequest(RREP message)

this method tells the caller if the request table already has an entry for the destination of this route reply

Parameters:

message -

Returns:

hasRequest

removeOutstandingRequest

public void removeOutstandingRequest(long destination,
                                     long originator,
                                     int reqID)

this method removes an outstanding request from the table

Parameters:

destination -

originator -

cleanTable

public void cleanTable()

This method removes all outstanding request that are expired

getCallback

public RouteEventClient getCallback(RREP message)

This method provides access to the client that interested in the route reply message that is passed as an argument

Parameters:

message -

Returns:

routeEventClient

setOurAddress

public void setOurAddress(long ourAddress)