org.infinispan.commons.hash

Interface Hash

All Known Implementing Classes:

MurmurHash3

public interface Hash

Interface that governs implementations

Author:

Manik Surtani, Patrick McFarland

See Also:

MurmurHash2, MurmurHash3

Method Summary

Modifier and Type	Method and Description
int	hash(byte[] payload) Hashes a byte array efficiently.
int	hash(int hashcode) An incremental version of the hash function, that spreads a pre-calculated hash code, such as one derived from Object.hashCode().
int	hash(Object o) A helper that calculates the hashcode of an object, choosing the optimal mechanism of hash calculation after considering the type of the object (byte array, String or Object).

Method Detail

hash

int hash(byte[] payload)

Hashes a byte array efficiently.

Parameters:

payload - a byte array to hash

Returns:

a hash code for the byte array

hash

int hash(int hashcode)

An incremental version of the hash function, that spreads a pre-calculated hash code, such as one derived from Object.hashCode().

Parameters:

hashcode - an object's hashcode

Returns:

a spread and hashed version of the hashcode

hash

int hash(Object o)

A helper that calculates the hashcode of an object, choosing the optimal mechanism of hash calculation after considering the type of the object (byte array, String or Object).

Parameters:

o - object to hash

Returns:

a hashcode