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Java > Open Source Codes > com > db4o > test > concurrency > CascadedDeleteStaleReference


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.concurrency;
22
23 import java.util.*;
24
25 import com.db4o.*;
26 import com.db4o.ext.*;
27 import com.db4o.query.*;
28 import com.db4o.test.*;
29
30
31 public class CascadedDeleteStaleReference {
32     
33     List list;
34     CDSReference ref;
35     
36     
37     public void configure(){
38         Db4o.configure().objectClass(this).cascadeOnDelete(true);
39         Db4o.configure().objectClass(this).cascadeOnUpdate(true);
40     }
41     
42     public void storeOne(){
43         list = Test.objectContainer().collections().newLinkedList();
44         ref = new CDSReference();
45         list.add(ref);
46     }
47     
48     public void testOne(){
49         
50         
51         if(Test.isClientServer()){
52             
53             
54             ExtObjectContainer serverOC = Test.server().ext().objectContainer().ext();
55             
56             Query q = serverOC.query();
57             q.constrain(CDSReference.class);
58             ObjectSet objectSet = q.execute();
59             CDSReference willbeStale = (CDSReference) objectSet.next();
60             
61             
62             Test.delete(this);
63             serverOC.delete(this);
64             Test.commit();
65             serverOC.commit();
66             
67             
68             serverOC.purge(willbeStale);
69             
70             // serverOC.close();
71
72         }
73     }
74     
75     
76     public static class CDSReference{
77     }
78 }
79
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