001/*
002 * Copyright (c) 2006-2011 Nuxeo SA (http://nuxeo.com/) and others.
003 *
004 * All rights reserved. This program and the accompanying materials
005 * are made available under the terms of the Eclipse Public License v1.0
006 * which accompanies this distribution, and is available at
007 * http://www.eclipse.org/legal/epl-v10.html
008 *
009 * Contributors:
010 *     Nuxeo - initial API and implementation
011 *
012 * $Id$
013 */
014
015package org.nuxeo.ecm.core.api;
016
017/**
018 * Helper class to send versions change event notifications in the core.
019 *
020 * @author <a href="mailto:dm@nuxeo.com">Dragos Mihalache</a>
021 */
022public final class VersioningChangeNotifier {
023
024    /**
025     * Core event id for events dispatched by this class.
026     */
027    public static final String CORE_EVENT_ID_VERSIONING_CHANGE = "versioningChangeCoreEvent";
028
029    /**
030     * The key in the info map pointing to the frozen document (previous version).
031     */
032    public static final String EVT_INFO_OLD_DOC_KEY = "oldDoc";
033
034    /**
035     * The key in the info map pointing to the current document.
036     */
037    public static final String EVT_INFO_NEW_DOC_KEY = "newDoc";
038
039    // Utility class.
040    private VersioningChangeNotifier() {
041    }
042
043}