org.egothor.util

Class CyclicBuffer

java.lang.Object

org.egothor.util.CyclicBuffer

public final class CyclicBuffer
extends Object

Author:

Leo Galambos

Constructor Summary

Constructors

Constructor and Description
CyclicBuffer(int size) Creates a new instance of CyclicBuffer.

Method Summary

Modifier and Type	Method and Description
int	add(byte item) Adds a byte into the buffer.
void	clear() Resets this buffer.
boolean	compareWith(byte[] buffer) Compares the content of this buffer with another buffer that must be long enough.
long	getChecksum(Checksum crc) Calculates the checksum of the stored data with a given algorithm.
boolean	isFull()
void	writeTo(DataOutput different)

Methods inherited from class java.lang.Object

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

Constructor Detail

CyclicBuffer

public CyclicBuffer(int size)

Creates a new instance of CyclicBuffer.

Method Detail

add

public int add(byte item)

Adds a byte into the buffer.

Returns:

value that was rewritten in this RR buffer on insertion, or -1 when the buffer was not fully filled yet

clear

public void clear()

Resets this buffer.

compareWith

public boolean compareWith(byte[] buffer)

Compares the content of this buffer with another buffer that must be long enough.

getChecksum

public long getChecksum(Checksum crc)

Calculates the checksum of the stored data with a given algorithm. This method does not call the reset operation on the checksumer.

writeTo

public void writeTo(DataOutput different)
             throws IOException

Throws:

IOException

isFull

public boolean isFull()