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.ObjectSet;
24: import com.db4o.config.*;
25: import com.db4o.query.*;
26:
27: import db4ounit.ArrayAssert;
28: import db4ounit.extensions.AbstractDb4oTestCase;
29:
30: /**
31: * @exclude
32: */
33: public class DoubleFieldIndexTestCase extends AbstractDb4oTestCase {
34:
35: public static void main(String[] args) {
36: new DoubleFieldIndexTestCase().runSolo();
37: }
38:
39: public static class Item {
40: public double value;
41:
42: public Item() {
43: }
44:
45: public Item(double value_) {
46: value = value_;
47: }
48: }
49:
50: protected void configure(Configuration config) {
51: indexField(config, Item.class, "value");
52: }
53:
54: protected void store() throws Exception {
55: db().set(new Item(0.5));
56: db().set(new Item(1.1));
57: db().set(new Item(2));
58: }
59:
60: public void testEqual() {
61: final Query query = newQuery(Item.class);
62: query.descend("value").constrain(new Double(1.1));
63:
64: assertItems(new double[] { 1.1 }, query.execute());
65: }
66:
67: public void testGreater() {
68: final Query query = newQuery(Item.class);
69: final Query descend = query.descend("value");
70: descend.constrain(new Double(1)).greater();
71: descend.orderAscending();
72:
73: assertItems(new double[] { 1.1, 2 }, query.execute());
74: }
75:
76: private void assertItems(double[] expected, ObjectSet set) {
77: ArrayAssert.areEqual(expected, toDoubleArray(set));
78: }
79:
80: private double[] toDoubleArray(ObjectSet set) {
81: double[] array = new double[set.size()];
82: for (int i = 0; i < array.length; i++) {
83: array[i] = ((Item) set.next()).value;
84: }
85: return array;
86: }
87:
88: }
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