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Java > Open Source Codes > org > objectweb > speedo > pobjects > basic > long2String


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.pobjects.basic;
19
20 import org.objectweb.speedo.api.UserFieldMapping;
21
22 /**
23  *
24  * @author S.Chassande-Barrioz
25  */
26 public class long2String 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 JavaDoc getStorageType() {
33         return java.lang.String JavaDoc.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 JavaDoc getMemoryType() {
41         return Long.TYPE;
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 JavaDoc toMemory(Object JavaDoc storagevalue) {
50         if (storagevalue == null) {
51             return null;
52         } else {
53             return Long.valueOf((String JavaDoc) storagevalue);
54         }
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 == null
64                 ? null
65                 : memoryvalue.toString());
66     }
67 }
68
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