<?php
/**
* CodeIgniter
*
* An open source application development framework for PHP
*
* This content is released under the MIT License (MIT)
*
* Copyright (c) 2014 - 2015, British Columbia Institute of Technology
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
* in the Software without restriction, including without limitation the rights
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
* THE SOFTWARE.
*
* @package CodeIgniter
* @author EllisLab Dev Team
* @copyright Copyright (c) 2008 - 2014, EllisLab, Inc. (http://ellislab.com/)
* @copyright Copyright (c) 2014 - 2015, British Columbia Institute of Technology (http://bcit.ca/)
* @license http://opensource.org/licenses/MIT MIT License
* @link http://codeigniter.com
* @since Version 2.0
* @filesource
*/
defined('BASEPATH') OR exit('No direct script access allowed');

/**
* CodeIgniter Dummy Caching Class
*
* @package CodeIgniter
* @subpackage Libraries
* @category Core
* @author EllisLab Dev Team
* @link
*/
class CI_Cache_dummy extends CI_Driver {

/**
* Get
*
* Since this is the dummy class, it's always going to return FALSE.
*
* @param string
* @return bool FALSE
*/
public function get($id)
{
return FALSE;
}

// ------------------------------------------------------------------------

/**
* Cache Save
*
* @param string Unique Key
* @param mixed Data to store
* @param int Length of time (in seconds) to cache the data
* @param bool Whether to store the raw value
* @return bool TRUE, Simulating success
*/
public function save($id, $data, $ttl = 60, $raw = FALSE)
{
return TRUE;
}

// ------------------------------------------------------------------------

/**
* Delete from Cache
*
* @param mixed unique identifier of the item in the cache
* @return bool TRUE, simulating success
*/
public function delete($id)
{
return TRUE;
}

// ------------------------------------------------------------------------

/**
* Increment a raw value
*
* @param string $id Cache ID
* @param int $offset Step/value to add
* @return mixed New value on success or FALSE on failure
*/
public function increment($id, $offset = 1)
{
return TRUE;
}

// ------------------------------------------------------------------------

/**
* Decrement a raw value
*
* @param string $id Cache ID
* @param int $offset Step/value to reduce by
* @return mixed New value on success or FALSE on failure
*/
public function decrement($id, $offset = 1)
{
return TRUE;
}

// ------------------------------------------------------------------------

/**
* Clean the cache
*
* @return bool TRUE, simulating success
*/
public function clean()
{
return TRUE;
}

// ------------------------------------------------------------------------

/**
* Cache Info
*
* @param string user/filehits
* @return bool FALSE
*/
public function cache_info($type = NULL)
{
return FALSE;
}

// ------------------------------------------------------------------------

/**
* Get Cache Metadata
*
* @param mixed key to get cache metadata on
* @return bool FALSE
*/
public function get_metadata($id)
{
return FALSE;
}

// ------------------------------------------------------------------------

/**
* Is this caching driver supported on the system?
* Of course this one is.
*
* @return bool TRUE
*/
public function is_supported()
{
return TRUE;
}

}