public function getVolumeFeed($location = null)
    {
        if ($location == null) {
            $uri = self::VOLUME_FEED_URI;
        } else if ($location instanceof Zend_Gdata_Query) {
            $uri = $location->getQueryUrl();
        } else {
            $uri = $location;
        }
        return parent::getFeed($uri, 'Zend_Gdata_Books_VolumeFeed');
    }
public function getVolumeFeed($location = null)
    {
        if ($location == null) {
            $uri = self::VOLUME_FEED_URI;
        } else if ($location instanceof Zend_Gdata_Query) {
            $uri = $location->getQueryUrl();
        } else {
            $uri = $location;
        }
        return parent::getFeed($uri, 'Zend_Gdata_Books_VolumeFeed');
    }
public function getVolumeFeed ( $ location = null ) { if ( $ location == null ) { $ uri = self :: VOLUME_FEED_URI ; } else if ( $ location instanceof Zend_Gdata_Query ) { $ uri = $ location -> getQueryUrl ( ) ; } else { $ uri = $ location ; } return parent :: getFeed ( $ uri , 'Zend_Gdata_Books_VolumeFeed' ) ; }
Retrieves a feed of volumes.

@param Zend_Gdata_Query|string|null $location (optional) The URL to
query or a Zend_Gdata_Query object from which a URL can be
determined.
@return Zend_Gdata_Books_VolumeFeed The feed of volumes found at the
specified URL.
Retrieves a feed of volumes .