SqlDateFieldMapping


1   /**
2    * Copyright (C) 2001-2004 France Telecom R&D
3    *
4    * This library is free software; you can redistribute it and/or
5    * modify it under the terms of the GNU Lesser General Public
6    * License as published by the Free Software Foundation; either
7    * version 2 of the License, or (at your option) any later version.
8    *
9    * This library is distributed in the hope that it will be useful,
10   * but WITHOUT ANY WARRANTY; without even the implied warranty of
11   * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
12   * Lesser General Public License for more details.
13   *
14   * You should have received a copy of the GNU Lesser General Public
15   * License along with this library; if not, write to the Free Software
16   * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
17   */
18  package org.objectweb.speedo.lib;
19  
20  import org.objectweb.speedo.api.UserFieldMapping;
21  
22  /**
23   *
24   * @author S.Chassande-Barrioz
25   */
26  public class SqlDateFieldMapping implements UserFieldMapping {
27  
28      /**
29       * Retrieves the java type corresponding to the type into the data support.
30       * @return a Class object (never null).
31       */
32      public Class   getStorageType() {
33          return java.util.Date  .class;
34      }
35  
36      /**
37       * Retrieves the java type corresponding to the type in memory.
38       * @return a Class object (never null).
39       */
40      public Class   getMemoryType() {
41          return java.sql.Date  .class;
42      }
43  
44      /**
45       * Converts a value from the data support into a value in memory
46       * @param storagevalue is the value store in the support (can be null).
47       * @return the value in memory (can be null).
48       */
49      public Object   toMemory(Object   storagevalue) {
50          if (storagevalue == null) {
51              return null;
52          }
53          return (storagevalue instanceof java.sql.Date  
54                  ? storagevalue
55                  : new java.sql.Date  (((java.util.Date  ) storagevalue).getTime()));
56      }
57  
58      /**
59       * Converts a value from the data support into a value in memory
60       * @param memoryvalue the value in memory (can be null).
61       * @return is the value store in the support (can be null).
62       */
63      public Object   toStorage(Object   memoryvalue) {
64          return memoryvalue;
65      }
66  }
67
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