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.classindex;
22:
23: import com.db4o.db4ounit.common.btree.ExpectingVisitor;
24: import com.db4o.internal.*;
25: import com.db4o.internal.classindex.*;
26:
27: import db4ounit.extensions.AbstractDb4oTestCase;
28: import db4ounit.extensions.fixtures.*;
29:
30: public class ClassIndexTestCase extends AbstractDb4oTestCase implements
31: OptOutCS {
32:
33: public static class Item {
34: public String name;
35:
36: public Item(String _name) {
37: this .name = _name;
38: }
39: }
40:
41: public static void main(String[] args) {
42: new ClassIndexTestCase().runSolo();
43: }
44:
45: public void testDelete() throws Exception {
46: Item item = new Item("test");
47: store(item);
48: int id = (int) db().getID(item);
49: assertID(id);
50:
51: reopen();
52:
53: item = (Item) db().get(item).next();
54: id = (int) db().getID(item);
55: assertID(id);
56:
57: db().delete(item);
58: db().commit();
59: assertEmpty();
60:
61: reopen();
62:
63: assertEmpty();
64: }
65:
66: private void assertID(int id) {
67: assertIndex(new Object[] { new Integer(id) });
68: }
69:
70: private void assertEmpty() {
71: assertIndex(new Object[] {});
72: }
73:
74: private void assertIndex(Object[] expected) {
75: ClassMetadata clazz = stream().classMetadataForReflectClass(
76: reflector().forClass(Item.class));
77: ExpectingVisitor visitor = new ExpectingVisitor(expected);
78: ClassIndexStrategy index = clazz.index();
79: index.traverseAll(trans(), visitor);
80: visitor.assertExpectations();
81: }
82: }
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