mirror of
https://github.com/predis/predis.git
synced 2026-08-21 12:30:57 +00:00
Daniele Alessandri
43 lines
1.1 KiB
PHP
43 lines
1.1 KiB
PHP
<?php
|
|
|
|
/*
|
|
* This file is part of the Predis package.
|
|
*
|
|
* (c) Daniele Alessandri <suppakilla@gmail.com>
|
|
*
|
|
* For the full copyright and license information, please view the LICENSE
|
|
* file that was distributed with this source code.
|
|
*/
|
|
|
|
namespace Predis\Cluster;
|
|
|
|
use Predis\Command\CommandInterface;
|
|
|
|
/**
|
|
* Interface for classes defining the strategy used to calculate an hash
|
|
* out of keys extracted from supported commands.
|
|
*
|
|
* This is mostly useful to support clustering via client-side sharding.
|
|
*
|
|
* @author Daniele Alessandri <suppakilla@gmail.com>
|
|
*/
|
|
interface CommandHashStrategyInterface
|
|
{
|
|
/**
|
|
* Returns the hash for the given command using the specified algorithm, or null
|
|
* if the command cannot be hashed.
|
|
*
|
|
* @param CommandInterface $command Command to be hashed.
|
|
* @return int
|
|
*/
|
|
public function getHash(CommandInterface $command);
|
|
|
|
/**
|
|
* Returns the hash for the given key using the specified algorithm.
|
|
*
|
|
* @param string $key Key to be hashed.
|
|
* @return string
|
|
*/
|
|
public function getKeyHash($key);
|
|
}
|