storage/mozIStorageStatementCallback.idl
author Chris H-C <chutten@mozilla.com>
Mon, 04 Jul 2016 11:16:05 -0400
changeset 312997 df28918fe2361f0b54ca9ce4773a29c4c0675d06
parent 244696 ad01543457e739b4eee7a245e16734a3ecfd10ad
permissions -rw-r--r--
bug 1218576 - Support remote accumulation via JS histograms. r=gfritzsche The JS histograms, too, need to dispatch their accumulations from child to parent. JSHistograms_Add now only supports histograms that are in gHistogramsMap or that were created in the parent process. After bug 1288745, maybe we'll be able to change this to be less convoluted. MozReview-Commit-ID: 3qTH89YKbGP

/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*-
 * vim: sw=2 ts=2 sts=2 expandtab 
 * This Source Code Form is subject to the terms of the Mozilla Public
 * License, v. 2.0. If a copy of the MPL was not distributed with this
 * file, You can obtain one at http://mozilla.org/MPL/2.0/. */

#include "nsISupports.idl"

interface mozIStorageResultSet;
interface mozIStorageError;

[scriptable, uuid(29383d00-d8c4-4ddd-9f8b-c2feb0f2fcfa)]
interface mozIStorageStatementCallback : nsISupports {

  /**
   * Called when some result is obtained from the database.  This function can
   * be called more than once with a different storageIResultSet each time for
   * any given asynchronous statement.
   *
   * @param aResultSet
   *        The result set containing the data from the database.
   */
  void handleResult(in mozIStorageResultSet aResultSet);

  /**
   * Called when some error occurs while executing the statement.  This function
   * may be called more than once with a different storageIError each time for
   * any given asynchronous statement.
   *
   * @param aError
   *        An object containing information about the error.
   */
  void handleError(in mozIStorageError aError);

  /**
   * Called when the statement has finished executing.  This function will only
   * be called once for any given asynchronous statement.
   *
   * @param aReason
   *        Indicates if the statement is no longer executing because it either
   *        finished (REASON_FINISHED), was canceled (REASON_CANCELED), or
   *        a fatal error occurred (REASON_ERROR).
   */
  const unsigned short REASON_FINISHED = 0;
  const unsigned short REASON_CANCELED = 1;
  const unsigned short REASON_ERROR = 2;
  void handleCompletion(in unsigned short aReason);
};