uk.org.arlott.simon.hw.f24.lbsta
Class BridgePacket

java.lang.Object
  uk.org.arlott.simon.hw.f24.lbsta.PacketData
      uk.org.arlott.simon.hw.f24.lbsta.BridgePacket

Direct Known Subclasses:

ConfigurationMessage, TopologyChangeMessage

public abstract class BridgePacket
extends PacketData

Base Spanning Tree Algorithm packet, with protocol identifier, version and message type.

Field Summary

private int	messageType Message Type (1 octet)
private int	protocolIdentifier Protocol Identifier (2 octets) The constant 0.
private int	version Version (1 octet) The constant 0.

Constructor Summary

BridgePacket(int messageType)
Creates a new BridgePacket of the specified type.

Method Summary

int	getMessageType() Gets the Message Type.
int	getProtcolIdentifier() Gets the Protocol Identifier.
int	getVersion() Gets the Version.

Methods inherited from class java.lang.Object

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

Field Detail

protocolIdentifier

private int protocolIdentifier

Protocol Identifier (2 octets) The constant 0.

version

private int version

Version (1 octet) The constant 0.

messageType

private int messageType

Message Type (1 octet)

Constructor Detail

BridgePacket

public BridgePacket(int messageType)

Creates a new BridgePacket of the specified type.

Parameters:

messageType - Type of bridge packet to create.

Method Detail

getProtcolIdentifier

public int getProtcolIdentifier()

Gets the Protocol Identifier.

Returns:

A value in the range 0-65535.

getVersion

public int getVersion()

Gets the Version.

Returns:

A value in the range 0-255.

getMessageType

public int getMessageType()

Gets the Message Type.

Returns:

A value in the range 0-255.