001    /**
002     * Copyright (c) 2000-2012 Liferay, Inc. All rights reserved.
003     *
004     * This library is free software; you can redistribute it and/or modify it under
005     * the terms of the GNU Lesser General Public License as published by the Free
006     * Software Foundation; either version 2.1 of the License, or (at your option)
007     * any later version.
008     *
009     * This library is distributed in the hope that it will be useful, but WITHOUT
010     * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
011     * FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License for more
012     * details.
013     */
014    
015    package com.liferay.portal.upgrade.util;
016    
017    import com.liferay.portal.kernel.upgrade.util.ValueMapper;
018    
019    import java.util.Collections;
020    import java.util.Iterator;
021    
022    /**
023     * @author Alexander Chow
024     * @author Brian Wing Shun Chan
025     */
026    public class DatabaseValueMapper implements ValueMapper {
027    
028            public DatabaseValueMapper() {
029    
030                    // Delete
031    
032            }
033    
034            public void appendException(Object exception) {
035    
036                    // Exceptions
037    
038            }
039    
040            public Object getNewValue(Object oldValue) throws Exception {
041    
042                    // Select
043    
044                    return null;
045            }
046    
047            public Iterator<Object> iterator() throws Exception {
048                    return Collections.emptyList().iterator();
049            }
050    
051            public void mapValue(Object oldValue, Object newValue) throws Exception {
052    
053                    // Insert
054    
055            }
056    
057            public int size() throws Exception {
058                    return 0;
059            }
060    
061    }