org.elasticsearch.cluster.routing

Class Murmur3HashFunction

java.lang.Object

org.elasticsearch.cluster.routing.Murmur3HashFunction

All Implemented Interfaces:

HashFunction

public class Murmur3HashFunction
extends Object
implements HashFunction

Hash function based on the Murmur3 algorithm, which is the default as of Elasticsearch 2.0.

Constructor Summary

Constructors

Constructor and Description
Murmur3HashFunction()

Method Summary

Methods

Modifier and Type	Method and Description
int	hash(String routing) Calculate a hash value for routing
int	hash(String type, String id) Calculate a hash value for routing and its type

Methods inherited from class java.lang.Object

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

Constructor Detail

Murmur3HashFunction

public Murmur3HashFunction()

Method Detail

hash

public int hash(String routing)

Description copied from interface: HashFunction

Calculate a hash value for routing

Specified by:

hash in interface HashFunction

Parameters:

routing - String to calculate the hash value from

Returns:

hash value of the given routing string

hash

public int hash(String type,
       String id)

Description copied from interface: HashFunction

Calculate a hash value for routing and its type

Specified by:

hash in interface HashFunction

Parameters:

type - types name

id - String to calculate the hash value from

Returns:

hash value of the given type and routing string