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.fieldindex;
22:
23: import com.db4o.*;
24: import com.db4o.ext.*;
25: import com.db4o.query.*;
26:
27: import db4ounit.*;
28: import db4ounit.extensions.*;
29: import db4ounit.extensions.fixtures.*;
30:
31: public class RuntimeFieldIndexTestCase extends AbstractDb4oTestCase
32: implements OptOutCS {
33:
34: private static final String FIELDNAME = "_id";
35:
36: public static class Data {
37: public int _id;
38:
39: public Data(int id) {
40: _id = id;
41: }
42: }
43:
44: protected void store() throws Exception {
45: for (int i = 1; i <= 3; i++) {
46: store(new Data(i));
47: }
48: }
49:
50: public void testCreateIndexAtRuntime() {
51: StoredField field = db().storedClass(Data.class).storedField(
52: FIELDNAME, null);
53: Assert.isFalse(field.hasIndex());
54: field.createIndex();
55: Assert.isTrue(field.hasIndex());
56: Query query = newQuery(Data.class);
57: query.descend(FIELDNAME).constrain(new Integer(2));
58: ObjectSet result = query.execute();
59: Assert.areEqual(1, result.size());
60: field.createIndex(); // ensure that second call is ignored
61: }
62:
63: }
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