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.test.pending;
22:
23: import com.db4o.*;
24: import com.db4o.query.*;
25: import com.db4o.test.*;
26:
27: public class UpwardCollectionQuery {
28: public void store() {
29: SimpleNode sub = new SimpleNode("sub", new SimpleNode[0]);
30: SimpleNode sup = new SimpleNode("sup", new SimpleNode[] { sub });
31: Test.store(sup);
32: }
33:
34: public void test() {
35: Query supq = Test.query();
36: supq.constrain(SimpleNode.class);
37: Query subq = supq.descend("children");
38: subq.constrain(SimpleNode.class);
39: subq.descend("name").constrain(new Evaluation() {
40: public void evaluate(Candidate candidate) {
41: candidate.include(true);
42: }
43: });
44: ObjectSet objectSet = subq.execute();
45: Test.ensure(objectSet.size() == 1);
46: Object found = objectSet.next();
47: System.err.println(found.getClass());
48: Test.ensure(found.getClass() == SimpleNode.class);
49: }
50: }
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