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Java > Open Source Codes > com > db4o > test > InternStrings


1 /* Copyright (C) 2004 - 2006 db4objects Inc. http://www.db4o.com
2
3 This file is part of the db4o open source object database.
4
5 db4o is free software; you can redistribute it and/or modify it under
6 the terms of version 2 of the GNU General Public License as published
7 by the Free Software Foundation and as clarified by db4objects' GPL
8 interpretation policy, available at
9 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;
22
23 import com.db4o.*;
24 import com.db4o.query.*;
25
26 public class InternStrings {
27     public String JavaDoc _name;
28     
29     public InternStrings() {
30         this(null);
31     }
32
33     public InternStrings(String JavaDoc name) {
34         _name = name;
35     }
36
37     public void configure() {
38         Db4o.configure().internStrings(true);
39     }
40     
41     public void store() {
42         Test.deleteAllInstances(this);
43         String JavaDoc name="Foo";
44         Test.store(new InternStrings(name));
45         Test.store(new InternStrings(name));
46     }
47     
48     public void test() {
49         Query query=Test.query();
50         query.constrain(getClass());
51         ObjectSet result=query.execute();
52         Test.ensureEquals(2, result.size());
53         InternStrings first=(InternStrings)result.next();
54         InternStrings second=(InternStrings)result.next();
55         Test.ensure(first._name==second._name);
56     }
57 }
58
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