01: /* Copyright (C) 2004 - 2007 db4objects Inc. http://www.db4o.com
02:
03: This file is part of the db4o open source object database.
04:
05: db4o is free software; you can redistribute it and/or modify it under
06: the terms of version 2 of the GNU General Public License as published
07: by the Free Software Foundation and as clarified by db4objects' GPL
08: interpretation policy, available at
09: 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.test;
22:
23: import java.io.*;
24:
25: import com.db4o.*;
26: import com.db4o.query.*;
27:
28: public class Backup {
29:
30: static int allAtomCount;
31: static int specialAtomCount;
32:
33: static final String FILE = "backuptest.yap";
34: static final String NAME = "backuptest";
35:
36: public void store() {
37: if (!Test.isClientServer()) {
38: new File(FILE).delete();
39: Test.store(new Atom(NAME));
40: Test.commit();
41:
42: Query q = Test.query();
43: q.constrain(Atom.class);
44: allAtomCount = q.execute().size();
45: q = Test.query();
46: q.constrain(Atom.class);
47: q.descend("name").constrain(NAME);
48: specialAtomCount = q.execute().size();
49: Test.objectContainer().ext().backup(FILE);
50: }
51: }
52:
53: public void test() {
54: if (!Test.isClientServer()) {
55: ObjectContainer objectContainer = Db4o.openFile(FILE);
56: Query q = objectContainer.query();
57: q.constrain(Atom.class);
58: Test.ensure(allAtomCount == q.execute().size());
59: q = Test.query();
60: q.constrain(Atom.class);
61: q.descend("name").constrain(NAME);
62: ObjectSet objectSet = q.execute();
63: Test.ensure(objectSet.size() == specialAtomCount);
64: Atom atom = (Atom) objectSet.next();
65: Test.ensure(atom.name.equals(NAME));
66: objectContainer.close();
67: }
68: }
69:
70: }
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