com.sangupta.murmur

Class Murmur2

java.lang.Object

com.sangupta.murmur.Murmur2

All Implemented Interfaces:

MurmurConstants

public class Murmur2
extends Object
implements MurmurConstants

A pure Java implementation of the Murmur 2 hashing algorithm as presented at Murmur Project Code is ported from original C++ source at MurmurHash2.cpp and the 64-bit version at MurmurHash2_64.cpp

Since:

1.0

Field Summary

Fields inherited from interface com.sangupta.murmur.MurmurConstants

LONG_MASK, UINT_MASK, UNSIGNED_MASK

Constructor Summary

Constructors

Constructor and Description
Murmur2()

Method Summary

Methods

Modifier and Type	Method and Description
static long	hash(byte[] data, int length, long seed) Compute the Murmur2 hash as described in the original source code.
static long	hash64(byte[] data, int length, long seed) Compute the Murmur2 hash (64-bit version) as described in the original source code.

Methods inherited from class java.lang.Object

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

Constructor Detail

Murmur2

public Murmur2()

Method Detail

hash

public static long hash(byte[] data,
        int length,
        long seed)

Compute the Murmur2 hash as described in the original source code.

Parameters:

data - the data that needs to be hashed

length - the length of the data that needs to be hashed

seed - the seed to use to compute the hash

Returns:

the computed hash value

hash64

public static long hash64(byte[] data,
          int length,
          long seed)

Compute the Murmur2 hash (64-bit version) as described in the original source code.

Parameters:

data - the data that needs to be hashed

length - the length of the data that needs to be hashed

seed - the seed to use to compute the hash

Returns:

the computed hash value