interface/modules/zend_modules/library/Zend/Authentication/Storage/NonPersistent.php

   1 <?php
   2 /**
   3  * Zend Framework (http://framework.zend.com/)
   4  *
   5  * @link      http://github.com/zendframework/zf2 for the canonical source repository
   6  * @copyright Copyright (c) 2005-2013 Zend Technologies USA Inc. (http://www.zend.com)
   7  * @license   http://framework.zend.com/license/new-bsd New BSD License
   8  */
   9
  10 namespace Zend\Authentication\Storage;
  11
  12 /**
  13  * Non-Persistent Authentication Storage
  14  *
  15  * Since HTTP Authentication happens again on each request, this will always be
  16  * re-populated. So there's no need to use sessions, this simple value class
  17  * will hold the data for rest of the current request.
  18  */
  19 class NonPersistent implements StorageInterface
  20 {
  21     /**
  22      * Holds the actual auth data
  23      */
  24     protected $data;
  25
  26     /**
  27      * Returns true if and only if storage is empty
  28      *
  29      * @return bool
  30      */
  31     public function isEmpty()
  32     {
  33         return empty($this->data);
  34     }
  35
  36     /**
  37      * Returns the contents of storage
  38      * Behavior is undefined when storage is empty.
  39      *
  40      * @return mixed
  41      */
  42     public function read()
  43     {
  44         return $this->data;
  45     }
  46
  47     /**
  48      * Writes $contents to storage
  49      *
  50      * @param  mixed $contents
  51      * @return void
  52      */
  53     public function write($contents)
  54     {
  55         $this->data = $contents;
  56     }
  57
  58     /**
  59      * Clears contents from storage
  60      *
  61      * @return void
  62      */
  63     public function clear()
  64     {
  65         $this->data = null;
  66     }
  67 }