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 <?php
 /**
  * Zend Framework
  *
  * LICENSE
  *
  * This source file is subject to the new BSD license that is bundled
  * with this package in the file LICENSE.txt.
  * It is also available through the world-wide-web at this URL:
  * http://framework.zend.com/license/new-bsd
  * If you did not receive a copy of the license and are unable to
  * obtain it through the world-wide-web, please send an email
  * to license@zend.com so we can send you a copy immediately.
  *
  * @category   Zend
  * @package    Zend_Service_Amazon
  * @subpackage SimpleDb
  * @copyright  Copyright (c) 2005-2015 Zend Technologies USA Inc. (http://www.zend.com)
  * @license    http://framework.zend.com/license/new-bsd     New BSD License
  */
 
 /**
  * @see Zend_Service_Amazon_Exception
  */
 // require_once 'Zend/Service/Amazon/Exception.php';
 
 /**
  * The Custom Exception class that allows you to have access to the AWS Error Code.
  *
  * @category   Zend
  * @package    Zend_Service_Amazon
  * @subpackage SimpleDb
  * @copyright  Copyright (c) 2005-2015 Zend Technologies USA Inc. (http://www.zend.com)
  * @license    http://framework.zend.com/license/new-bsd     New BSD License
  */
 class Zend_Service_Amazon_SimpleDb_Page
 {
     /**
      * Page data
      *
      * @var string
      */
     protected $_data;
 
     /**
      * Token identifying page
      *
      * @var string|null
      */
     protected $_token;
 
     /**
      * Constructor
      *
      * @param string      $data
      * @param string|null $token
      */
     public function __construct($data, $token = null)
     {
         $this->setData($data);
         $this->setToken($token);
     }
 
     /**
      * Set page data
      *
      * @param string $data
      */
     public function setData($data)
     {
         $this->_data = $data;
     }
 
     /**
      * Retrieve page data
      *
      * @return string
      */
     public function getData()
     {
         return $this->_data;
     }
 
     /**
      * Set token
      *
      * @param string|null $token
      */
     public function setToken($token)
     {
         $this->_token = (trim($token) === '') ? null : $token;
     }
 
     /**
      * Retrieve token
      *
      * @return string|null
      */
     public function getToken()
     {
         return $this->_token;
     }
 
     /**
      * Determine whether this is the last page of data
      *
      * @return bool
      */
     public function isLast()
     {
         return (null === $this->_token);
     }
 
     /**
      * Cast to string
      *
      * @return string
      */
     public function __toString()
     {
         return "Page with token: " . $this->_token
              . "\n and data: " . $this->_data;
     }
 }