org.jscsi.parser.digest

Interface IDigest

All Superinterfaces:

Checksum

public interface IDigest
extends Checksum

IDigest

An interface representing a digest.

Author:

Volker Wildi

Method Summary

Methods

Modifier and Type	Method and Description
int	getSize() Returns the length in bytes, which are needed to store this digest.
void	update(ByteBuffer data, int off, int len) This method updates the used digest with the values of the given ByteBuffer object.
void	validate() This method validates the calculated checksum with the expected checksum.

Methods inherited from interface java.util.zip.Checksum

getValue, reset, update, update

Method Detail

update

void update(ByteBuffer data,
          int off,
          int len)

This method updates the used digest with the values of the given ByteBuffer object.

Parameters:

data - The values used for updating the checksum.

off - Start offset.

len - Length of the used values. (Must be a multiple of 4 bytes)

validate

void validate()
              throws DigestException

This method validates the calculated checksum with the expected checksum.

Throws:

DigestException - Dismatch between the calculated and expected checksum.

getSize

int getSize()

Returns the length in bytes, which are needed to store this digest.

Returns:

The number of bytes of this digest.