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.assorted;
22:
23: import com.db4o.config.*;
24: import com.db4o.query.Query;
25:
26: import db4ounit.Assert;
27: import db4ounit.extensions.AbstractDb4oTestCase;
28: import db4ounit.extensions.fixtures.*;
29:
30: public class MultiDeleteTestCase extends AbstractDb4oTestCase implements
31: OptOutDefragSolo {
32:
33: public static void main(String[] args) {
34: new MultiDeleteTestCase().runSoloAndClientServer();
35: }
36:
37: public static class Item {
38: public Item child;
39: public String name;
40: public Object forLong;
41: public Long myLong;
42: public Object[] untypedArr;
43: public Long[] typedArr;
44:
45: public void setMembers() {
46: forLong = new Long(100);
47: myLong = new Long(100);
48: untypedArr = new Object[] { new Long(10), "hi", new Item() };
49: typedArr = new Long[] { new Long(3), new Long(7),
50: new Long(9), };
51: }
52: }
53:
54: protected void configure(Configuration config) {
55: ObjectClass itemClass = config.objectClass(Item.class);
56: itemClass.cascadeOnDelete(true);
57: itemClass.cascadeOnUpdate(true);
58: }
59:
60: protected void store() throws Exception {
61: Item md = new Item();
62: md.name = "killmefirst";
63: md.setMembers();
64: md.child = new Item();
65: md.child.setMembers();
66: db().set(md);
67: }
68:
69: public void testDeleteCanBeCalledTwice() {
70: Item item = itemByName("killmefirst");
71: Assert.isNotNull(item);
72: long id = db().getID(item);
73: db().delete(item);
74:
75: Assert.areSame(item, itemById(id));
76:
77: db().delete(item);
78: Assert.areSame(item, itemById(id));
79: }
80:
81: private Item itemByName(String name) {
82: Query q = newQuery(Item.class);
83: q.descend("name").constrain(name);
84: return (Item) q.execute().next();
85: }
86:
87: private Item itemById(long id) {
88: return (Item) db().getByID(id);
89: }
90: }
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