<?php
/**
* Zend Framework (http://framework.zend.com/)
*
* @link http://github.com/zendframework/zf2 for the canonical source repository
* @copyright Copyright (c) 2005-2014 Zend Technologies USA Inc. (http://www.zend.com)
* @license http://framework.zend.com/license/new-bsd New BSD License
*/
namespace Zend\Authentication\Storage;
/**
* Non-Persistent Authentication Storage
*
* Since HTTP Authentication happens again on each request, this will always be
* re-populated. So there's no need to use sessions, this simple value class
* will hold the data for rest of the current request.
*/
class NonPersistent implements StorageInterface
{
/**
* Holds the actual auth data
*/
protected $data;
/**
* Returns true if and only if storage is empty
*
* @return bool
*/
public function isEmpty()
{
return empty($this->data);
}
/**
* Returns the contents of storage
* Behavior is undefined when storage is empty.
*
* @return mixed
*/
public function read()
{
return $this->data;
}
/**
* Writes $contents to storage
*
* @param mixed $contents
* @return void
*/
public function write($contents)
{
$this->data = $contents;
}
/**
* Clears contents from storage
*
* @return void
*/
public function clear()
{
$this->data = null;
}
}