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.db4ounit.common.querying;
22:
23: import com.db4o.*;
24: import com.db4o.config.*;
25: import com.db4o.query.*;
26:
27: import db4ounit.*;
28: import db4ounit.extensions.*;
29:
30: public class CascadeOnActivate extends AbstractDb4oTestCase {
31:
32: public String name;
33:
34: public CascadeOnActivate child;
35:
36: protected void configure(Configuration conf) {
37: conf.objectClass(this ).cascadeOnActivate(true);
38: }
39:
40: protected void store() {
41: CascadeOnActivate coa = new CascadeOnActivate();
42: coa.name = "1";
43: coa.child = new CascadeOnActivate();
44: coa.child.name = "2";
45: coa.child.child = new CascadeOnActivate();
46: coa.child.child.name = "3";
47:
48: db().set(coa);
49: }
50:
51: public void test() {
52: Query q = newQuery(getClass());
53: q.descend("name").constrain("1");
54: ObjectSet os = q.execute();
55:
56: CascadeOnActivate coa = (CascadeOnActivate) os.next();
57: CascadeOnActivate coa3 = coa.child.child;
58:
59: Assert.areEqual("3", coa3.name);
60:
61: db().deactivate(coa, Integer.MAX_VALUE);
62:
63: Assert.isNull(coa3.name);
64:
65: db().activate(coa, 1);
66:
67: Assert.areEqual("3", coa3.name);
68: }
69: }
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