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https://github.com/predis/predis.git
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Daniele Alessandri
43 lines
1.1 KiB
PHP
43 lines
1.1 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;
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use Predis\Command\CommandInterface;
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/**
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* Interface for classes defining the strategy used to calculate an hash out of
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* keys extracted from supported commands.
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*
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* This is mostly useful to support clustering via 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 StrategyInterface
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{
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/**
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* Returns the hash for the given command using the specified algorithm, or
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* null when the command cannot be hashed.
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*
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* @param CommandInterface $command Command instance.
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* @return int
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*/
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public function getHash(CommandInterface $command);
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/**
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* Returns the hash for the given key using the specified algorithm.
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*
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* @param string $key Key string.
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* @return string
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*/
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public function getKeyHash($key);
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}
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