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.jre11.assorted;
22:
23: import com.db4o.config.Configuration;
24: import com.db4o.query.Query;
25:
26: import db4ounit.Assert;
27: import db4ounit.extensions.AbstractDb4oTestCase;
28:
29: public class NullWrapperTestCase extends AbstractDb4oTestCase {
30:
31: static final int USE_AS_NULL = -9999;
32:
33: final int[] VALUES = new int[] { 1, 2, USE_AS_NULL, 5, USE_AS_NULL,
34: 7, USE_AS_NULL };
35:
36: public static void main(String[] args) {
37: new NullWrapperTestCase().runSolo();
38: }
39:
40: protected void configure(Configuration config) {
41: config.objectClass(NullWrapperItem.class).objectField(
42: NullWrapperItem.INTEGER_FIELDNAME).indexed(true);
43: }
44:
45: public void test() throws Exception {
46: for (int i = 0; i < VALUES.length; i++) {
47: Integer integer = VALUES[i] == USE_AS_NULL ? null
48: : new Integer(VALUES[i]);
49: db().set(new NullWrapperItem(integer));
50: }
51: reopen();
52:
53: Query q = newQuery();
54: q.constrain(NullWrapperItem.class);
55: q.descend(NullWrapperItem.INTEGER_FIELDNAME).constrain(null);
56: Assert.areEqual(3, q.execute().size());
57: }
58:
59: }
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