Package org.apache.commons.codec.digest

Class PureJavaCrc32C

java.lang.Object

org.apache.commons.codec.digest.PureJavaCrc32C

All Implemented Interfaces:

java.util.zip.Checksum

public class PureJavaCrc32C
extends java.lang.Object
implements java.util.zip.Checksum

A pure-java implementation of the CRC32 checksum that uses the CRC32-C polynomial, the same polynomial used by iSCSI and implemented on many Intel chipsets supporting SSE4.2. Copied from Hadoop 2.3.6: https://git-wip-us.apache.org/repos/asf?p=hadoop.git;a=blob_plain; f=hadoop-common-project/hadoop-common/src/main/java/org/apache/hadoop/util/PureJavaCrc32C.java; hb=2120de588b92b9f22b1cc4188761d6a8c61aa778

This class is Not ThreadSafe

Since:

1.11

Constructor Summary

Constructors

Constructor	Description
PureJavaCrc32C()	Create a new PureJavaCrc32 object.

Method Summary

Modifier and Type	Method	Description
long	getValue()
void	reset()
void	update(byte[] b, int off, int len)
void	update(int b)

Methods inherited from interface java.util.zip.Checksum

update, update

Methods inherited from class java.lang.Object

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

Constructor Detail

PureJavaCrc32C

public PureJavaCrc32C()

Create a new PureJavaCrc32 object.

Method Detail

getValue

public long getValue()

Specified by:

getValue in interface java.util.zip.Checksum

reset

public void reset()

Specified by:

reset in interface java.util.zip.Checksum

update

public void update(byte[] b,
                   int off,
                   int len)

Specified by:

update in interface java.util.zip.Checksum

update

public final void update(int b)

Specified by:

update in interface java.util.zip.Checksum