/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
/* ***** BEGIN LICENSE BLOCK *****
 * Version: MPL 1.1/GPL 2.0/LGPL 2.1
 *
 * The contents of this file are subject to the Mozilla Public License Version
 * 1.1 (the "License"); you may not use this file except in compliance with
 * the License. You may obtain a copy of the License at
 * http://www.mozilla.org/MPL/
 *
 * Software distributed under the License is distributed on an "AS IS" basis,
 * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
 * for the specific language governing rights and limitations under the
 * License.
 *
 * The Original Code is Url Classifier code
 *
 * The Initial Developer of the Original Code is
 * Google Inc.
 * Portions created by the Initial Developer are Copyright (C) 2006
 * the Initial Developer. All Rights Reserved.
 *
 * Contributor(s):
 *   Tony Chang <tony@ponderer.org> (original author)
 *
 * Alternatively, the contents of this file may be used under the terms of
 * either the GNU General Public License Version 2 or later (the "GPL"), or
 * the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
 * in which case the provisions of the GPL or the LGPL are applicable instead
 * of those above. If you wish to allow use of your version of this file only
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 * decision by deleting the provisions above and replace them with the notice
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 * the provisions above, a recipient may use your version of this file under
 * the terms of any one of the MPL, the GPL or the LGPL.
 *
 * ***** END LICENSE BLOCK ***** */

#include "nsISupports.idl"
#include "nsIUrlClassifierDBService.idl"

/**
 * This is a class to manage large table updates from the server.  Rather than
 * downloading the whole update and then updating the sqlite database, we
 * update tables as the data is streaming in.
 */
[scriptable, uuid(d9277fa4-7d51-4175-bd4e-546c080a83bf)]
interface nsIUrlClassifierStreamUpdater : nsISupports
{
  /**
   * The Url to download from.  Should be plain ascii text.
   */
  attribute ACString updateUrl;

  /**
   * Try to download updates from updateUrl.  Only one instance of this
   * runs at a time, so we return false if another instance is already
   * running.
   * @param aTableCallback Called once for each table that we successfully
   *     download with the table header as the parameter.
   * @param aErrorCallback Called if we get an http error or a connection
   *   refused.
   */
  boolean downloadUpdates(in nsIUrlClassifierCallback aTableCallback,
                          in nsIUrlClassifierCallback aErrorCallback);
};