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Java > Open Source Codes > com > db4o > config > TMap


1 /* Copyright (C) 2004 - 2006 db4objects Inc. http://www.db4o.com
2
3 This file is part of the db4o open source object database.
4
5 db4o is free software; you can redistribute it and/or modify it under
6 the terms of version 2 of the GNU General Public License as published
7 by the Free Software Foundation and as clarified by db4objects' GPL
8 interpretation policy, available at
9 http://www.db4o.com/about/company/legalpolicies/gplinterpretation/
10 Alternatively you can write to db4objects, Inc., 1900 S Norfolk Street,
11 Suite 350, San Mateo, CA 94403, USA.
12
13 db4o is distributed in the hope that it will be useful, but WITHOUT ANY
14 WARRANTY; without even the implied warranty of MERCHANTABILITY or
15 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
16 for more details.
17
18 You should have received a copy of the GNU General Public License along
19 with this program; if not, write to the Free Software Foundation, Inc.,
20 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
21 package com.db4o.config;
22
23 import java.util.*;
24
25 import com.db4o.*;
26
27 /**
28  * @exclude
29  * @sharpen.ignore
30  */
31 public class TMap implements ObjectTranslator {
32     
33     public Object JavaDoc onStore(ObjectContainer con, Object JavaDoc object){
34         Map map = (Map)object;
35         Entry[] entries = new Entry[map.size()];
36         Iterator it = map.keySet().iterator();
37         int i = 0;
38         while(it.hasNext()){
39             entries[i] = new Entry();
40             entries[i].key = it.next();
41             entries[i].value = map.get(entries[i].key);
42             i++;
43         }
44         return entries;
45     }
46
47     public void onActivate(ObjectContainer con, Object JavaDoc object, Object JavaDoc members){
48         Map map = (Map)object;
49         map.clear();
50         if(members != null){
51             Entry[] entries = (Entry[]) members;
52             for(int i = 0; i < entries.length; i++){
53                 if(entries[i] != null){
54                     if(entries[i].key != null && entries[i].value != null){
55                         map.put(entries[i].key,entries[i].value);
56                     }
57                 }
58             }
59         }
60     }
61
62     public Class JavaDoc storedClass(){
63         return Entry[].class;
64     }
65 }
66
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