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https://github.com/predis/predis.git
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Daniele Alessandri
54 lines
1.2 KiB
PHP
54 lines
1.2 KiB
PHP
<?php
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/*
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* This file is part of the Predis package.
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*
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* (c) Daniele Alessandri <suppakilla@gmail.com>
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*
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* For the full copyright and license information, please view the LICENSE
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* file that was distributed with this source code.
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*/
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namespace Predis\Cluster\Distribution;
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use Predis\Cluster\Hash\HashGeneratorInterface;
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/**
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* A distributor implements the logic to automatically distribute
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* keys among several nodes for client-side sharding.
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*
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* @author Daniele Alessandri <suppakilla@gmail.com>
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*/
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interface DistributionStrategyInterface
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{
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/**
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* Adds a node to the distributor with an optional weight.
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*
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* @param mixed $node Node object.
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* @param int $weight Weight for the node.
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*/
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public function add($node, $weight = null);
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/**
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* Removes a node from the distributor.
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*
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* @param mixed $node Node object.
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*/
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public function remove($node);
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/**
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* Gets a node from the distributor using the computed hash of a key.
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*
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* @param mixed $key
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* @return mixed
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*/
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public function get($key);
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/**
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* Returns the underlying hash generator instance.
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*
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* @return HashGeneratorInterface
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*/
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public function getHashGenerator();
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}
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