eu.etrap.medusa.hash.function

Class CRC64HashFunctionImpl

java.lang.Object

eu.etrap.medusa.config.ClassConfig

eu.etrap.medusa.hash.function.AbstractHashFunction

eu.etrap.medusa.hash.function.CRC64HashFunctionImpl

All Implemented Interfaces:

HashFunction

public class CRC64HashFunctionImpl
extends AbstractHashFunction

Author:

development

Field Summary

Fields

Modifier and Type	Field and Description
private int	BLOCKS
private int	BUCKET_MASK
static long	intCollisions
(package private) int	intDataSetsPerBucket
static long	intElements
static long	intElements2
private boolean	isFirstHashValue
(package private) long	longCheckSum
(package private) long	longHashValue
private jonelo.jacksum.algorithm.Crc64	objCRC64
private int	SHIFTS

Fields inherited from class eu.etrap.medusa.hash.function.AbstractHashFunction

calcBucketID, calcBucketIDSize, calcHashValue, calcHashValueSize

Fields inherited from class eu.etrap.medusa.config.ClassConfig

BOOLEAN_DEFAULT, DOUBLE_DEFAULT, FORMAT_IMPL, INT_DEFAULT, LONG_DEFAULT, objConf, objConfCategory, objFormat, strBackupConfFile, STRING_DEFAULT

Constructor Summary

Constructors

Constructor and Description
CRC64HashFunctionImpl() Creates a new instance of FastCRC32HashFunctionImpl

Method Summary

Modifier and Type	Method and Description
int	calcBucketID(byte[] aryKeys)
int	calcHashValue()
byte[]	getOriginalHashValue()
void	init(java.util.Properties objProperties)

Methods inherited from class eu.etrap.medusa.hash.function.AbstractHashFunction

calcBufferSize, calcKeySuffixes, clear, getInt, getIntAsByteArray, getLongAsByteArray, getProperties, printBitTable

Methods inherited from class eu.etrap.medusa.config.ClassConfig

config, getConfiguration, getGlobalProperty, getProperty, getProperty, getStatisticsProperty, loadFormatImpl, selfconfig, setGlobalProperty, setProperty, setProperty, setStatisticsProperty, setStatisticsProperty

Methods inherited from class java.lang.Object

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

Field Detail

BLOCKS

private int BLOCKS

BUCKET_MASK

private int BUCKET_MASK

SHIFTS

private int SHIFTS

objCRC64

private jonelo.jacksum.algorithm.Crc64 objCRC64

isFirstHashValue

private boolean isFirstHashValue

longCheckSum

long longCheckSum

longHashValue

long longHashValue

intDataSetsPerBucket

int intDataSetsPerBucket

intCollisions

public static long intCollisions

intElements

public static long intElements

intElements2

public static long intElements2

Constructor Detail

CRC64HashFunctionImpl

public CRC64HashFunctionImpl()

Creates a new instance of FastCRC32HashFunctionImpl

Method Detail

init

public void init(java.util.Properties objProperties)
          throws ConfigurationException,
                 HashException

Specified by:

init in interface HashFunction

Overrides:

init in class AbstractHashFunction

Throws:

ConfigurationException

HashException

calcBucketID

public int calcBucketID(byte[] aryKeys)
                 throws HashException

Specified by:

calcBucketID in interface HashFunction

Overrides:

calcBucketID in class AbstractHashFunction

Throws:

HashException

calcHashValue

public int calcHashValue()
                  throws HashException

Specified by:

calcHashValue in interface HashFunction

Overrides:

calcHashValue in class AbstractHashFunction

Throws:

HashException

getOriginalHashValue

public byte[] getOriginalHashValue()

Specified by:

getOriginalHashValue in interface HashFunction

Overrides:

getOriginalHashValue in class AbstractHashFunction