Class SimplePacket

java.lang.Object

SimplePacket

All Implemented Interfaces:

java.lang.Comparable<SimplePacket>

public class SimplePacket
extends java.lang.Object
implements java.lang.Comparable<SimplePacket>

The Packet structure which includes a sequence number, a checksum (true/false), and the delivered data.

Constructor Summary

Constructors

Constructor and Description
SimplePacket(int seq, boolean checksum, byte[] buf) Constructs a SimplePacket with sequence number, checksum validation, and the data.

Method Summary

Methods

Modifier and Type	Method and Description
int	compareTo(SimplePacket pkt) Not usable
byte[]	getData() Returns the bytes delivered by the packet
int	getPred() Not usable
int	getSeq() Returns the sequence number of the packet
boolean	isValidCheckSum() Returns true if the packet has a valid checksum; otherwise, false

Methods inherited from class java.lang.Object

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

Constructor Detail

SimplePacket

public SimplePacket(int seq,
            boolean checksum,
            byte[] buf)

Constructs a SimplePacket with sequence number, checksum validation, and the data.

Parameters:

seq - the sequence number starting from 1

checksum - true or false to indicate the validation of its checksum

buf - the delivered data in the packet

Method Detail

getSeq

public int getSeq()

Returns the sequence number of the packet

isValidCheckSum

public boolean isValidCheckSum()

Returns true if the packet has a valid checksum; otherwise, false

getData

public byte[] getData()

Returns the bytes delivered by the packet

getPred

public int getPred()

Not usable

compareTo

public int compareTo(SimplePacket pkt)

Not usable

Specified by:

compareTo in interface java.lang.Comparable<SimplePacket>