com.emc.atmos.api

Class RunningChecksum

java.lang.Object

com.emc.atmos.api.ChecksumValue

com.emc.atmos.api.RunningChecksum

public class RunningChecksum
extends ChecksumValue

Used to store, update and compute checksums

Constructor Summary

Constructors

Constructor and Description
RunningChecksum(ChecksumAlgorithm algorithm)

Method Summary

Methods

Modifier and Type	Method and Description
ChecksumAlgorithm	getAlgorithm()
long	getOffset()
java.lang.String	getValue()
void	update(BufferSegment segment) Convenience method to pass in a buffer segment.
void	update(byte[] buffer, int offset, int length) Updates the checksum with the given buffer's contents

Methods inherited from class com.emc.atmos.api.ChecksumValue

equals, hashCode, toString, toString

Methods inherited from class java.lang.Object

clone, finalize, getClass, notify, notifyAll, wait, wait, wait

Constructor Detail

RunningChecksum

public RunningChecksum(ChecksumAlgorithm algorithm)
                throws java.security.NoSuchAlgorithmException

Throws:

java.security.NoSuchAlgorithmException

Method Detail

update

public void update(byte[] buffer,
          int offset,
          int length)

Updates the checksum with the given buffer's contents

Parameters:

buffer - data to update

offset - start in buffer

length - number of bytes to use from buffer starting at offset

update

public void update(BufferSegment segment)

Convenience method to pass in a buffer segment.

getAlgorithm

public ChecksumAlgorithm getAlgorithm()

Specified by:

getAlgorithm in class ChecksumValue

getOffset

public long getOffset()

Specified by:

getOffset in class ChecksumValue

getValue

public java.lang.String getValue()

Specified by:

getValue in class ChecksumValue