001    /**
002     * Copyright (c) 2000-2013 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            @Override
035            public void appendException(Object exception) {
036    
037                    // Exceptions
038    
039            }
040    
041            @Override
042            public Object getNewValue(Object oldValue) throws Exception {
043    
044                    // Select
045    
046                    return null;
047            }
048    
049            @Override
050            public Iterator<Object> iterator() throws Exception {
051                    return Collections.emptyList().iterator();
052            }
053    
054            @Override
055            public void mapValue(Object oldValue, Object newValue) throws Exception {
056    
057                    // Insert
058    
059            }
060    
061            @Override
062            public int size() throws Exception {
063                    return 0;
064            }
065    
066    }