Package org.apache.commons.codec.digest

Class MurmurHash3.IncrementalHash32x86

java.lang.Object

org.apache.commons.codec.digest.MurmurHash3.IncrementalHash32x86

Direct Known Subclasses:

MurmurHash3.IncrementalHash32

Enclosing class:

MurmurHash3

public static class MurmurHash3.IncrementalHash32x86
extends java.lang.Object

Generates 32-bit hash from input bytes. Bytes can be added incrementally and the new hash computed.

This is an implementation of the 32-bit hash function MurmurHash3_x86_32 from Austin Appleby's original MurmurHash3 c++ code in SMHasher.

Since:

1.14

Constructor Summary

Constructors

Constructor	Description
IncrementalHash32x86()

Method Summary

Modifier and Type	Method	Description
void	add(byte[] data, int offset, int length)	Adds the byte array to the current incremental hash.
int	end()	Generates the 32-bit hash value.
void	start(int seed)	Starts a new incremental hash.

Methods inherited from class java.lang.Object

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

Constructor Detail

IncrementalHash32x86

public IncrementalHash32x86()

Method Detail

add

public final void add(byte[] data,
                      int offset,
                      int length)

Adds the byte array to the current incremental hash.

Parameters:

data - The input byte array

offset - The offset of data

length - The length of array

end

public final int end()

Generates the 32-bit hash value. Repeat calls to this method with no additional data will generate the same hash value.

Returns:

The 32-bit hash

start

public final void start(int seed)

Starts a new incremental hash.

Parameters:

seed - The initial seed value