001/*
002 * This library is part of OpenCms -
003 * the Open Source Content Management System
004 *
005 * Copyright (c) Alkacon Software GmbH & Co. KG (http://www.alkacon.com)
006 *
007 * This library is free software; you can redistribute it and/or
008 * modify it under the terms of the GNU Lesser General Public
009 * License as published by the Free Software Foundation; either
010 * version 2.1 of the License, or (at your option) any later version.
011 *
012 * This library is distributed in the hope that it will be useful,
013 * but WITHOUT ANY WARRANTY; without even the implied warranty of
014 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
015 * Lesser General Public License for more details.
016 *
017 * For further information about Alkacon Software, please see the
018 * company website: http://www.alkacon.com
019 *
020 * For further information about OpenCms, please see the
021 * project website: http://www.opencms.org
022 *
023 * You should have received a copy of the GNU Lesser General Public
024 * License along with this library; if not, write to the Free Software
025 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
026 */
027
028package org.opencms.gwt.shared;
029
030import java.util.List;
031
032import com.google.common.collect.Lists;
033import com.google.gwt.user.client.rpc.IsSerializable;
034
035/**
036 * A collection of historical versions of a resource.<p>
037 */
038public class CmsHistoryResourceCollection implements IsSerializable {
039
040    /** Info bean for the current content version. */
041    private CmsListInfoBean m_contentInfo;
042
043    /** The list of historical versions. */
044    private List<CmsHistoryResourceBean> m_versions = Lists.newArrayList();
045
046    /**
047     * Creates a new instance.<p>
048     */
049    public CmsHistoryResourceCollection() {
050
051        // do nothing
052
053    }
054
055    /**
056     * Adds the information for a historical resource version.<p>
057     *
058     * @param historyBean bean representing a historical resource version
059     */
060    public void add(CmsHistoryResourceBean historyBean) {
061
062        m_versions.add(historyBean);
063    }
064
065    /**
066     * Gets the information bean for the current resource version.<p>
067     *
068     * @return the information bean for the current version
069     */
070    public CmsListInfoBean getContentInfo() {
071
072        return m_contentInfo;
073    }
074
075    /**
076     * Gets the list of historical versions.<p>
077     *
078     * @return the list of historical versions
079     */
080    public List<CmsHistoryResourceBean> getResources() {
081
082        return m_versions;
083    }
084
085    /**
086     * Returns true if there are no historical versions.<p>
087     *
088     * @return true if there are no historical versions
089     */
090    public boolean isEmpty() {
091
092        return m_versions.isEmpty();
093    }
094
095    /**
096     * Sets the content information for the current version.<p>
097     * @param contentInfo the content information
098     */
099    public void setContentInfo(CmsListInfoBean contentInfo) {
100
101        m_contentInfo = contentInfo;
102    }
103
104}