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Java > Open Source Codes > org > objectweb > speedo > lib > SqlTimestampFieldMapping


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 SqlTimestampFieldMapping implements UserFieldMapping {
27     /**
28      * Retrieves the java type corresponding to the type into the data support.
29      * @return a Class object (never null).
30      */
31     public Class JavaDoc getStorageType() {
32         return java.util.Date JavaDoc.class;
33     }
34
35     /**
36      * Retrieves the java type corresponding to the type in memory.
37      * @return a Class object (never null).
38      */
39     public Class JavaDoc getMemoryType() {
40         return java.sql.Timestamp JavaDoc.class;
41     }
42
43     /**
44      * Converts a value from the data support into a value in memory
45      * @param storagevalue is the value store in the support (can be null).
46      * @return the value in memory (can be null).
47      */
48     public Object JavaDoc toMemory(Object JavaDoc storagevalue) {
49         if (storagevalue == null) {
50             return null;
51         }
52         return (storagevalue instanceof java.sql.Time JavaDoc
53                 ? storagevalue
54                 : new java.sql.Timestamp JavaDoc(((java.util.Date JavaDoc) storagevalue).getTime()));
55     }
56
57     /**
58      * Converts a value from the data support into a value in memory
59      * @param memoryvalue the value in memory (can be null).
60      * @return is the value store in the support (can be null).
61      */
62     public Object JavaDoc toStorage(Object JavaDoc memoryvalue) {
63         return memoryvalue;
64     }
65 }
66
67
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