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


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 DifferentAccessPaths {
27     
28     public String JavaDoc foo;
29
30     public void store(){
31         Test.deleteAllInstances(this);
32         DifferentAccessPaths dap = new DifferentAccessPaths();
33         dap.foo = "hi";
34         Test.store(dap);
35         dap = new DifferentAccessPaths();
36         dap.foo = "hi too";
37         Test.store(dap);
38     }
39
40     public void test(){
41         DifferentAccessPaths dap = query();
42         for(int i = 0; i < 10; i ++){
43             Test.ensure(dap == query());
44         }
45         Test.objectContainer().purge(dap);
46         Test.ensure(dap != query());
47     }
48
49     private DifferentAccessPaths query(){
50         Query q = Test.query();
51         q.constrain(DifferentAccessPaths.class);
52         q.descend("foo").constrain("hi");
53         ObjectSet os = q.execute();
54         DifferentAccessPaths dap = (DifferentAccessPaths)os.next();
55         return dap;
56     }
57
58 }
59
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