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.ext.*;
25: import com.db4o.query.*;
26:
27: import db4ounit.*;
28: import db4ounit.extensions.*;
29:
30: public class RefreshTestCase extends Db4oClientServerTestCase {
31:
32: public static void main(String[] args) {
33: new RefreshTestCase().runConcurrency();
34: }
35:
36: public String name;
37:
38: public RefreshTestCase child;
39:
40: public RefreshTestCase() {
41:
42: }
43:
44: public RefreshTestCase(String name, RefreshTestCase child) {
45: this .name = name;
46: this .child = child;
47: }
48:
49: protected void store() {
50: RefreshTestCase r3 = new RefreshTestCase("o3", null);
51: RefreshTestCase r2 = new RefreshTestCase("o2", r3);
52: RefreshTestCase r1 = new RefreshTestCase("o1", r2);
53: store(r1);
54: }
55:
56: public void conc(ExtObjectContainer oc) {
57: RefreshTestCase r11 = getRoot(oc);
58: r11.name = "cc";
59: oc.refresh(r11, 0);
60: Assert.areEqual("cc", r11.name);
61: oc.refresh(r11, 1);
62: Assert.areEqual("o1", r11.name);
63: r11.child.name = "cc";
64: oc.refresh(r11, 1);
65: Assert.areEqual("cc", r11.child.name);
66: oc.refresh(r11, 2);
67: Assert.areEqual("o2", r11.child.name);
68: }
69:
70: private RefreshTestCase getRoot(ObjectContainer oc) {
71: return getByName(oc, "o1");
72: }
73:
74: private RefreshTestCase getByName(ObjectContainer oc,
75: final String name) {
76: Query q = oc.query();
77: q.constrain(RefreshTestCase.class);
78: q.descend("name").constrain(name);
79: ObjectSet objectSet = q.execute();
80: return (RefreshTestCase) objectSet.next();
81: }
82:
83: }
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