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 MultiDeleteTestCase extends Db4oClientServerTestCase {
32:
33: public static void main(String[] args) {
34: new MultiDeleteTestCase().runConcurrency();
35: }
36:
37: public MultiDeleteTestCase child;
38:
39: public String name;
40:
41: public Object forLong;
42:
43: public Long myLong;
44:
45: public Object[] untypedArr;
46:
47: public Long[] typedArr;
48:
49: protected void configure(Configuration config) {
50: config.objectClass(this ).cascadeOnDelete(true);
51: config.objectClass(this ).cascadeOnUpdate(true);
52: }
53:
54: protected void store() {
55: MultiDeleteTestCase md = new MultiDeleteTestCase();
56: md.name = "killmefirst";
57: md.setMembers();
58: md.child = new MultiDeleteTestCase();
59: md.child.setMembers();
60: store(md);
61: }
62:
63: public void conc(ExtObjectContainer oc) throws Exception {
64: Query q = oc.query();
65: q.constrain(MultiDeleteTestCase.class);
66: q.descend("name").constrain("killmefirst");
67: ObjectSet objectSet = q.execute();
68: if (objectSet.size() == 0) { // already deleted by other threads
69: return;
70: }
71:
72: Assert.areEqual(1, objectSet.size());
73: Thread.sleep(1000);
74: if (!objectSet.hasNext()) {
75: return;
76: }
77:
78: MultiDeleteTestCase md = (MultiDeleteTestCase) objectSet.next();
79: oc.delete(md);
80: oc.commit();
81: assertOccurrences(oc, MultiDeleteTestCase.class, 0);
82: }
83:
84: public void check(ExtObjectContainer oc) {
85: assertOccurrences(oc, MultiDeleteTestCase.class, 0);
86: }
87:
88: private void setMembers() {
89: forLong = new Long(100);
90: myLong = new Long(100);
91: untypedArr = new Object[] { new Long(10), "hi",
92: new MultiDeleteTestCase() };
93: typedArr = new Long[] { new Long(3), new Long(7), new Long(9), };
94: }
95:
96: }
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