Package com.scurrilous.circe.crc

Class ReflectedLongCrc

java.lang.Object

com.scurrilous.circe.impl.AbstractIncrementalLongHash

com.scurrilous.circe.crc.AbstractLongCrc

com.scurrilous.circe.crc.ReflectedLongCrc

All Implemented Interfaces:

Hash, IncrementalLongHash, StatelessHash, StatelessLongHash

final class ReflectedLongCrc
extends AbstractLongCrc

Implements a "reflected" LSB-first long-width CRC function using a lookup table.

Field Summary

Fields inherited from class com.scurrilous.circe.crc.AbstractLongCrc

bitWidth

Constructor Summary

Constructors

Constructor	Description
ReflectedLongCrc(String algorithm, int width, long poly, long init, long xorOut)

Method Summary

Modifier and Type	Method	Description
protected long	initial()	The initial state of the hash function, which is the same as the output value for an empty input sequence.
protected long	resumeRaw(long crc, byte[] input, int index, int length)

Methods inherited from class com.scurrilous.circe.crc.AbstractLongCrc

algorithm, length, reflect, resumeUnchecked

Methods inherited from class com.scurrilous.circe.impl.AbstractIncrementalLongHash

calculate, calculate, calculate, calculate, createStateful, resume, resume, resume, resume, supportsUnsafe

Methods inherited from class java.lang.Object

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

Constructor Details

ReflectedLongCrc

ReflectedLongCrc(String algorithm,
 int width,
 long poly,
 long init,
 long xorOut)

Method Details

initial

protected long initial()

Description copied from class: AbstractIncrementalLongHash

The initial state of the hash function, which is the same as the output value for an empty input sequence.

Overrides:

initial in class AbstractLongCrc

Returns:

the initial hash state/output

resumeRaw

protected long resumeRaw(long crc,
 byte[] input,
 int index,
 int length)

Specified by:

resumeRaw in class AbstractLongCrc