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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_Gdata
  * @subpackage Books
  * @copyright  Copyright (c) 2005-2015 Zend Technologies USA Inc. (http://www.zend.com)
  * @license    http://framework.zend.com/license/new-bsd     New BSD License
  * @version    $Id$
  */
 
 /**
  * Zend_Gdata_Books
  */
 // require_once('Zend/Gdata/Books.php');
 
 /**
  * Zend_Gdata_Query
  */
 // require_once('Zend/Gdata/Query.php');
 
 /**
  * Assists in constructing queries for Books volumes
  *
  * @category   Zend
  * @package    Zend_Gdata
  * @subpackage Books
  * @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_Gdata_Books_VolumeQuery extends Zend_Gdata_Query
 {
 
     /**
      * Create Gdata_Books_VolumeQuery object
      *
      * @param string|null $url If non-null, pre-initializes the instance to
      *        use a given URL.
      */
     public function __construct($url = null)
     {
         parent::__construct($url);
     }
 
     /**
      * Sets the minimum level of viewability of volumes to return in the search results
      *
      * @param string|null $value The minimum viewability - 'full' or 'partial'
      * @return Zend_Gdata_Books_VolumeQuery Provides a fluent interface
      */
     public function setMinViewability($value = null)
     {
         switch ($value) {
             case 'full_view':
                 $this->_params['min-viewability'] = 'full';
                 break;
             case 'partial_view':
                 $this->_params['min-viewability'] = 'partial';
                 break;
             case null:
                 unset($this->_params['min-viewability']);
                 break;
         }
         return $this;
     }
 
     /**
      * Minimum viewability of volumes to include in search results
      *
      * @return string|null min-viewability
      */
     public function getMinViewability()
     {
         if (array_key_exists('min-viewability', $this->_params)) {
             return $this->_params['min-viewability'];
         } else {
             return null;
         }
     }
 
     /**
      * Returns the generated full query URL
      *
      * @return string The URL
      */
     public function getQueryUrl()
     {
         if (isset($this->_url)) {
             $url = $this->_url;
         } else {
             $url = Zend_Gdata_Books::VOLUME_FEED_URI;
         }
         if ($this->getCategory() !== null) {
             $url .= '/-/' . $this->getCategory();
         }
         $url = $url . $this->getQueryString();
         return $url;
     }
 
 }