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.concurrency;
22:
23: import com.db4o.*;
24: import com.db4o.config.*;
25: import com.db4o.ext.*;
26: import com.db4o.query.*;
27:
28: import db4ounit.*;
29: import db4ounit.extensions.*;
30:
31: public class CascadeOnActivateTestCase extends Db4oClientServerTestCase {
32:
33: public static void main(String[] args) {
34: new CascadeOnActivateTestCase().runConcurrency();
35: }
36:
37: public static class Item {
38: public String name;
39:
40: public Item child;
41: }
42:
43: protected void configure(Configuration config) {
44: config.objectClass(Item.class).cascadeOnActivate(true);
45: }
46:
47: protected void store() {
48: Item item = new Item();
49: item.name = "1";
50: item.child = new Item();
51: item.child.name = "2";
52: item.child.child = new Item();
53: item.child.child.name = "3";
54: store(item);
55: }
56:
57: public void conc(ExtObjectContainer oc) {
58: Query q = oc.query();
59: q.constrain(Item.class);
60: q.descend("name").constrain("1");
61: ObjectSet os = q.execute();
62: Item item = (Item) os.next();
63: Item item3 = item.child.child;
64: Assert.areEqual("3", item3.name);
65: oc.deactivate(item, Integer.MAX_VALUE);
66: Assert.isNull(item3.name);
67: oc.activate(item, 1);
68: Assert.areEqual("3", item3.name);
69: }
70: }
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