Moved cache drivers outside core to extensions (plugins)

plugins/cache-redis/Predis/Connection/ConnectionInterface.php

@@ -0,0 +1,66 @@
+<?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);
+}