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Java > Open Source Codes > com > db4o > types > SecondClass


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.types;
22
23 /**
24  * marks objects as second class objects.
25  *
26  * <br><br>Currently this interface is for internal use only
27  * to help discard com.db4o.config.Entry objects in the
28  * Defragment process.
29  * <br><br>For future versions this interface is planned to
30  * mark objects that:<br>
31  * - are not to be held in the reference mechanism<br>
32  * - should always be activated with their parent objects<br>
33  * - should always be deleted with their parent objects<br>
34  * - should always be deleted if they are not referenced any
35  * longer.<br>
36  */
37 public interface SecondClass extends Db4oType{
38 }
39
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