<?php
  
  /**
   * This node represents a single notification.
   *
   * The signature is mostly identical to that of Sabre_DAV_IFile, but the get() method
   * MUST return an xml document that matches the requirements of the
   * 'caldav-notifications.txt' spec.
   *
   * For a complete example, check out the Notification class, which contains
   * some helper functions.
   *
   * @package Sabre
   * @subpackage CalDAV
   * @copyright Copyright (C) 2007-2013 Rooftop Solutions. All rights reserved.
   * @author Evert Pot (http://www.rooftopsolutions.nl/)
   * @license http://code.google.com/p/sabredav/wiki/License Modified BSD License
   */
  interface Sabre_CalDAV_Notifications_INode {
  
      /**
       * This method must return an xml element, using the
       * Sabre_CalDAV_Notifications_INotificationType classes.
       *
       * @return Sabre_DAVNotification_INotificationType
       */
      function getNotificationType();
  
      /**
       * Returns the etag for the notification.
       *
       * The etag must be surrounded by litteral double-quotes.
       *
       * @return string
       */
      function getETag();
  
  }