dd.host.impl
Class HostHbStage.HostDbReq

java.lang.Object
  |
  +--ostore.network.NetworkMessage
        |
        +--dd.host.impl.HostHbStage.HostDbReq

All Implemented Interfaces:

Cloneable, QueueElementIF, QuickSerializable

Enclosing class:

HostHbStage

public static class HostHbStage.HostDbReq

extends NetworkMessage

HostDbReq/HostHbStage.HostDbResp are used to tranfer the contents of the HostDb from an older leaf set member to a new node. The older leafset members HostDb is entirely a hint and is used to initialize a new nodes HostDb as a way to bootstrap the new node into the network. The hint is useful by giving the new node a notion of the state of the network.

Field Summary

static byte	CONT Continue transfering host entries.
SecureHash	dest identifier of the src and dest.
short	maxReturn Max num of host entries to return in resp
short	seq A sequence number to keep track of position of transfer.
SecureHash	src identifier of the src and dest.
static byte	START Start transfering host entries.
byte	state state indicating whether to START, CONT, or STOP.
static byte	STOP Stop transfering host entries.

Fields inherited from class ostore.network.NetworkMessage

comp_q, est_rtt_ms, inbound, peer, sender, tries, user_data, wait_ms

Constructor Summary

HostHbStage.HostDbReq(InputBuffer buffer)
Constructs a HostDbReq from its serialized form.

HostHbStage.HostDbReq(NodeId peer, SecureHash src, SecureHash dest, short seq, short maxReturn, byte state)
Construct according to the given fields.

Method Summary

void	serialize(OutputBuffer buffer) Specified by ostore.util.QuickSerializable
String	toString() Specified by java.lang.Object

Methods inherited from class ostore.network.NetworkMessage

clone

Methods inherited from class java.lang.Object

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

Field Detail

START

public static final byte START

Start transfering host entries.

See Also:

Constant Field Values

CONT

public static final byte CONT

Continue transfering host entries.

See Also:

Constant Field Values

STOP

public static final byte STOP

Stop transfering host entries.

See Also:

Constant Field Values

src

public SecureHash src

identifier of the src and dest.

dest

public SecureHash dest

identifier of the src and dest.

maxReturn

public short maxReturn

Max num of host entries to return in resp

state

public byte state

state indicating whether to START, CONT, or STOP.

seq

public short seq

A sequence number to keep track of position of transfer.

Constructor Detail

HostHbStage.HostDbReq

public HostHbStage.HostDbReq(NodeId peer,
                             SecureHash src,
                             SecureHash dest,
                             short seq,
                             short maxReturn,
                             byte state)

Construct according to the given fields.

HostHbStage.HostDbReq

public HostHbStage.HostDbReq(InputBuffer buffer)
                      throws QSException

Constructs a HostDbReq 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

Overrides:

serialize in class NetworkMessage

toString

public String toString()

Specified by java.lang.Object

Overrides:

toString in class NetworkMessage