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 com.db4o.*;
24:
25: public class DualDelete {
26:
27: public Atom atom;
28:
29: public void configure() {
30: Db4o.configure().objectClass(this ).cascadeOnDelete(true);
31: Db4o.configure().objectClass(this ).cascadeOnUpdate(true);
32: }
33:
34: public void store() {
35: Test.deleteAllInstances(this );
36: Test.deleteAllInstances(new Atom());
37: DualDelete dd1 = new DualDelete();
38: dd1.atom = new Atom("justone");
39: Test.store(dd1);
40: DualDelete dd2 = new DualDelete();
41: dd2.atom = dd1.atom;
42: Test.store(dd2);
43: }
44:
45: public void test() {
46: Test.deleteAllInstances(this );
47: Test.ensureOccurrences(new Atom(), 0);
48: Test.rollBack();
49: Test.ensureOccurrences(new Atom(), 1);
50: Test.deleteAllInstances(this );
51: Test.ensureOccurrences(new Atom(), 0);
52: Test.commit();
53: Test.ensureOccurrences(new Atom(), 0);
54: Test.rollBack();
55: Test.ensureOccurrences(new Atom(), 0);
56: }
57:
58: }
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