001/*
002 * (C) Copyright 2006-2011 Nuxeo SA (http://nuxeo.com/) and others.
003 *
004 * Licensed under the Apache License, Version 2.0 (the "License");
005 * you may not use this file except in compliance with the License.
006 * You may obtain a copy of the License at
007 *
008 *     http://www.apache.org/licenses/LICENSE-2.0
009 *
010 * Unless required by applicable law or agreed to in writing, software
011 * distributed under the License is distributed on an "AS IS" BASIS,
012 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
013 * See the License for the specific language governing permissions and
014 * limitations under the License.
015 *
016 * Contributors:
017 *     Nuxeo - initial API and implementation
018 *
019 * $Id$
020 */
021
022package org.nuxeo.ecm.core.api;
023
024/**
025 * Helper class to send versions change event notifications in the core.
026 *
027 * @author <a href="mailto:[email protected]">Dragos Mihalache</a>
028 */
029public final class VersioningChangeNotifier {
030
031    /**
032     * Core event id for events dispatched by this class.
033     */
034    public static final String CORE_EVENT_ID_VERSIONING_CHANGE = "versioningChangeCoreEvent";
035
036    /**
037     * The key in the info map pointing to the frozen document (previous version).
038     */
039    public static final String EVT_INFO_OLD_DOC_KEY = "oldDoc";
040
041    /**
042     * The key in the info map pointing to the current document.
043     */
044    public static final String EVT_INFO_NEW_DOC_KEY = "newDoc";
045
046    // Utility class.
047    private VersioningChangeNotifier() {
048    }
049
050}