pjs/services/sync/modules/stores.js

105 строки
3.3 KiB
JavaScript

/* ***** 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 Bookmarks Sync.
*
* The Initial Developer of the Original Code is Mozilla.
* Portions created by the Initial Developer are Copyright (C) 2007
* the Initial Developer. All Rights Reserved.
*
* Contributor(s):
* Dan Mills <thunder@mozilla.com>
*
* 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
* under the terms of either the GPL or the LGPL, and not to allow others to
* use your version of this file under the terms of the MPL, indicate your
* decision by deleting the provisions above and replace them with the notice
* and other provisions required by the GPL or the LGPL. If you do not delete
* 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 ***** */
const EXPORTED_SYMBOLS = ["Store"];
const Cc = Components.classes;
const Ci = Components.interfaces;
const Cr = Components.results;
const Cu = Components.utils;
Cu.import("resource://services-sync/constants.js");
Cu.import("resource://services-sync/log4moz.js");
Cu.import("resource://services-sync/util.js");
/*
* Data Stores
* These can wrap, serialize items and apply commands
*/
function Store(name) {
name = name || "Unnamed";
this.name = name.toLowerCase();
this._log = Log4Moz.repository.getLogger("Store." + name);
let level = Svc.Prefs.get("log.logger.engine." + this.name, "Debug");
this._log.level = Log4Moz.Level[level];
}
Store.prototype = {
applyIncoming: function Store_applyIncoming(record) {
if (record.deleted)
this.remove(record);
else if (!this.itemExists(record.id))
this.create(record);
else
this.update(record);
},
// override these in derived objects
create: function Store_create(record) {
throw "override create in a subclass";
},
remove: function Store_remove(record) {
throw "override remove in a subclass";
},
update: function Store_update(record) {
throw "override update in a subclass";
},
itemExists: function Store_itemExists(id) {
throw "override itemExists in a subclass";
},
createRecord: function Store_createRecord(id) {
throw "override createRecord in a subclass";
},
changeItemID: function Store_changeItemID(oldID, newID) {
throw "override changeItemID in a subclass";
},
getAllIDs: function Store_getAllIDs() {
throw "override getAllIDs in a subclass";
},
wipe: function Store_wipe() {
throw "override wipe in a subclass";
}
};