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<?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\Connection;
use Predis\Command\CommandInterface;
/**
* Defines a connection object used to communicate with one or multiple
* Redis servers.
*
* @author Daniele Alessandri <suppakilla@gmail.com>
*/
interface ConnectionInterface
{
/**
* Opens the connection to Redis.
*/
public function connect();
/**
* Closes the connection to Redis.
*/
public function disconnect();
/**
* Checks if the connection to Redis is considered open.
*
* @return bool
*/
public function isConnected();
/**
* Writes the request for the given command over the connection.
*
* @param CommandInterface $command Command instance.
*/
public function writeRequest(CommandInterface $command);
/**
* Reads the response to the given command from the connection.
*
* @param CommandInterface $command Command instance.
*
* @return mixed
*/
public function readResponse(CommandInterface $command);
/**
* Writes a request for the given command over the connection and reads back
* the response returned by Redis.
*
* @param CommandInterface $command Command instance.
*
* @return mixed
*/
public function executeCommand(CommandInterface $command);
}