org.ishugaliy.allgood.consistent.hash

Class HashRingBuilder<T extends Node>

java.lang.Object

org.ishugaliy.allgood.consistent.hash.HashRingBuilder<T>

Type Parameters:

T - the type of node to be used in HashRing

public final class HashRingBuilder<T extends Node>
extends java.lang.Object

Implementation of builder pattern for HashRing

Constructor Summary

Constructors

Constructor and Description
HashRingBuilder()

Method Summary

Modifier and Type	Method and Description
HashRing<T>	build() Build hash ring.
HashRingBuilder<T>	hasher(Hasher hash) Set hash function implementation.
HashRingBuilder<T>	name(java.lang.String name) Set name of the hash ring
HashRingBuilder<T>	nodes(java.util.Collection<T> nodes) Initialized hash ring with list of nodes
HashRingBuilder<T>	partitionRate(int partitionRate) Set amount of Partition to be create per Node

Methods inherited from class java.lang.Object

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

Constructor Detail

HashRingBuilder

public HashRingBuilder()

Method Detail

name

public HashRingBuilder<T> name(java.lang.String name)

Set name of the hash ring

Parameters:

name - the name of the ring. If no name was set, default name will be generated

Returns:

builder instance

Throws:

java.lang.NullPointerException - if name is null

hasher

public HashRingBuilder<T> hasher(Hasher hash)

Set hash function implementation.

Parameters:

hash - the hash function, default value is DefaultHasher.MURMUR_3

Returns:

builder instance

partitionRate

public HashRingBuilder<T> partitionRate(int partitionRate)

Set amount of Partition to be create per Node

Parameters:

partitionRate - the partition rate. Default value is 1000, minimum is 1

Returns:

builder instance

Throws:

java.lang.IllegalArgumentException - if partition rate less than 1

nodes

public HashRingBuilder<T> nodes(java.util.Collection<T> nodes)

Initialized hash ring with list of nodes

Parameters:

nodes - the nodes list to be added to hash ring

Returns:

builder instance

Throws:

java.lang.NullPointerException - if nodes list is null

build

public HashRing<T> build()

Build hash ring.

Returns:

the hash ring instance