<?php
  /**
   * Copyright (c) 2013 Robin Appelman <icewind@owncloud.com>
   * This file is licensed under the Affero General Public License version 3 or
   * later.
   * See the COPYING-README file.
   */
  
  namespace OC\Session;
  
  /**
   * Class Internal
   *
   * store session data in an in-memory array, not persistance
   *
   * @package OC\Session
   */
  class Memory extends Session {
  	protected $data;
  
  	public function __construct($name) {
  		//no need to use $name since all data is already scoped to this instance
  		$this->data = array();
  	}
  
  	/**
  	 * @param string $key
  	 * @param mixed $value
  	 */
  	public function set($key, $value) {
  		$this->data[$key] = $value;
  	}
  
  	/**
  	 * @param string $key
  	 * @return mixed
  	 */
  	public function get($key) {
  		if (!$this->exists($key)) {
  			return null;
  		}
  		return $this->data[$key];
  	}
  
  	/**
  	 * @param string $key
  	 * @return bool
  	 */
  	public function exists($key) {
  		return isset($this->data[$key]);
  	}
  
  	/**
  	 * @param string $key
  	 */
  	public function remove($key) {
  		unset($this->data[$key]);
  	}
  
  	public function clear() {
  		$this->data = array();
  	}
  }