1   /**
2    * Copyright (c) 2000-2010 Liferay, Inc. All rights reserved.
3    *
4    * This library is free software; you can redistribute it and/or modify it under
5    * the terms of the GNU Lesser General Public License as published by the Free
6    * Software Foundation; either version 2.1 of the License, or (at your option)
7    * any later version.
8    *
9    * This library is distributed in the hope that it will be useful, but WITHOUT
10   * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
11   * FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License for more
12   * details.
13   */
14  
15  package com.liferay.portal.kernel.upgrade.util;
16  
17  import java.util.Iterator;
18  
19  /**
20   * <a href="ValueMapper.java.html"><b><i>View Source</i></b></a>
21   *
22   * @author Alexander Chow
23   * @author Brian Wing Shun Chan
24   */
25  public interface ValueMapper {
26  
27      public Object getNewValue(Object oldValue) throws Exception;
28  
29      public void mapValue(Object oldValue, Object newValue) throws Exception;
30  
31      public void appendException(Object exception);
32  
33      public Iterator<Object> iterator() throws Exception;
34  
35      public int size() throws Exception;
36  
37  }