Package com.yahoo.search.cluster

Class Hasher<T>

java.lang.Object

com.yahoo.search.cluster.Hasher<T>

public class Hasher<T>
extends Object

A hasher load balances between a set of nodes, represented by object ids.

Author:

Arne B Fossaa, bratseth, Prashanth B. Bhat

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
static class	Hasher.NodeFactor<T>
static class	Hasher.NodeList<T>

Constructor Summary

Constructors

Constructor	Description
Hasher()

Method Summary

Modifier and Type	Method	Description
void	add(T node)	Adds a node with load factor 100
void	add(T node, int load)	Adds a code with a load factor.
Hasher.NodeList<T>	getNodes()	Returns a list of nodes that are up.
void	remove(T node)	Removes a node

Methods inherited from class java.lang.Object

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

Constructor Details

Hasher

public Hasher()

Method Details

add

public void add(T node)

Adds a node with load factor 100

add

public void add(T node,
 int load)

Adds a code with a load factor. The load factor is relative to the load of the other added nodes and determines how often this node will be selected compared to the other nodes

remove

public void remove(T node)

Removes a node

getNodes

public Hasher.NodeList<T> getNodes()

Returns a list of nodes that are up.