com.sangupta.murmur

Class Murmur1

java.lang.Object

com.sangupta.murmur.Murmur1

All Implemented Interfaces:

MurmurConstants

public class Murmur1
extends Object
implements MurmurConstants

A pure Java implementation of the Murmur 1 hashing algorithm as presented at Murmur Project Code is ported from original C++ source at MurmurHash.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
Murmur1()

Method Summary

Methods

Modifier and Type	Method and Description
static long	hash(byte[] data, int length, long seed) Compute the Murmur1 hash as described in the original source code.
static long	hashAligned(byte[] data, int length, long seed) Compute the Murmur1 hash (aligned 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

Murmur1

public Murmur1()

Method Detail

hash

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

Compute the Murmur1 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

hashAligned

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

Compute the Murmur1 hash (aligned version) as described in the original source code. Code ported from original C++ version at MurmurHashAligned.cpp

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