/**
* PHP >= 5.4.0<br/>
* Read session data
* @link http://php.net/manual/en/sessionhandlerinterafce.read.php
* @param string $session_id The session id to read data for.
* @return string <p>
* Returns an encoded string of the read data.
* If nothing was read, it must return an empty string.
* Note this value is returned internally to PHP for processing.
* </p>
*/
public function read($session_id) {
$model = self::_GetModel($session_id);
self::$Externals = $model->getExternalData();
return $model->getData();
}
