smile.hash

Class MurmurHash2

java.lang.Object

smile.hash.MurmurHash2

public class MurmurHash2
extends java.lang.Object

MurmurHash is a very fast, non-cryptographic hash suitable for general hash-based lookup. The name comes from two basic operations, multiply (MU) and rotate (R), used in its inner loop. See http://murmurhash.googlepages.com/ for more details.

The older MurmurHash2 yields a 32-bit or 64-bit value.

This class is adapted from Apache Cassandra.

See Also:

MurmurHash3

Constructor Summary

Constructors

Constructor and Description
MurmurHash2()

Method Summary

Modifier and Type	Method and Description
static int	hash32(java.nio.ByteBuffer data, int offset, int length, int seed) 32-bit MurmurHash.
static long	hash64(java.nio.ByteBuffer key, int offset, int length, long seed) 64-bit MurmurHash.

Methods inherited from class java.lang.Object

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

Constructor Detail

MurmurHash2

public MurmurHash2()

Method Detail

hash32

public static int hash32(java.nio.ByteBuffer data,
                         int offset,
                         int length,
                         int seed)

32-bit MurmurHash.

hash64

public static long hash64(java.nio.ByteBuffer key,
                          int offset,
                          int length,
                          long seed)

64-bit MurmurHash.