demo.helloworld.step3.api
Class HelloWorldQueryState

java.lang.Object
  |
  +--demo.helloworld.step3.api.HelloWorldQueryState

All Implemented Interfaces:

DDQueryState, QuickSerializable

public class HelloWorldQueryState

extends Object

implements DDQueryState

HelloWorldQueryState is a DDQueryState used in a HelloWorldLocateMsg used to keep track of servers'guid and virtual coordinate that has be found by HelloWorldQuery

Version:

$Id: HelloWorldQueryState.java,v 1.1 2004/06/14 06:31:45 kelvinso Exp $

Author:

Chiu Wah Kelvin So

Constructor Summary

HelloWorldQueryState(InputBuffer buffer)
Constructs a HelloWorldQueryState from its serialized form.

HelloWorldQueryState(int numberOfReqServers)
Creates a new HelloWorldQueryState.

Method Summary

Object	add(SecureHash src, bamboo.vivaldi.VirtualCoordinate vc) Adds the specified server's GUID and virtual coordinate to the serversInfo if it is not already present.
boolean	contains(SecureHash src) Tests whether the serversInfo contains the specified server
Hashtable	getMap() getMap returns the serversInfo with requested number of GUID and corresponding VirtualCoordinate.
int	numberOfRequestedServers() numberOfRequestedServers returns the requested number of servers.
void	serialize(OutputBuffer buffer) Specified by ostore.util.QuickSerializable
int	size() size returns the size of the serversInfo
String	toString() Specified by java.lang.Object

Methods inherited from class java.lang.Object

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

Constructor Detail

HelloWorldQueryState

public HelloWorldQueryState(int numberOfReqServers)

Creates a new HelloWorldQueryState.

HelloWorldQueryState

public HelloWorldQueryState(InputBuffer buffer)
                     throws QSException

Constructs a HelloWorldQueryState from its serialized form.

Parameters:

buffer - serialized form of object.

Method Detail

serialize

public void serialize(OutputBuffer buffer)

Specified by ostore.util.QuickSerializable

Specified by:

serialize in interface QuickSerializable

add

public Object add(SecureHash src,
                  bamboo.vivaldi.VirtualCoordinate vc)

Adds the specified server's GUID and virtual coordinate to the serversInfo if it is not already present.

Parameters:

src - SecureHash

vc - VirtualCoordinate

Returns:

newly added Object

contains

public boolean contains(SecureHash src)

Tests whether the serversInfo contains the specified server

Parameters:

src - SecureHash

Returns:

true if the serversInfo already contains the specified server.

getMap

public Hashtable getMap()

getMap returns the serversInfo with requested number of GUID and corresponding VirtualCoordinate.

Returns:

serversInfo.

numberOfRequestedServers

public int numberOfRequestedServers()

numberOfRequestedServers returns the requested number of servers.

Returns:

the requested number of servers.

size

public int size()

size returns the size of the serversInfo

Returns:

size returns the size of the serversInfo

toString

public String toString()

Specified by java.lang.Object

Overrides:

toString in class Object