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Java > Open Source Codes > com > db4o > db4ounit > common > querying > CascadeDeleteFalse


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.db4ounit.common.querying;
22
23 import com.db4o.config.*;
24
25 import db4ounit.*;
26 import db4ounit.extensions.*;
27
28 public class CascadeDeleteFalse extends AbstractDb4oTestCase {
29
30     public static class CascadeDeleteFalseHelper{
31     }
32     
33     public CascadeDeleteFalseHelper h1;
34     public CascadeDeleteFalseHelper h2;
35     public CascadeDeleteFalseHelper h3;
36     
37     protected void configure(Configuration conf) {
38         conf.objectClass(this).cascadeOnDelete(true);
39         conf.objectClass(this).objectField("h3").cascadeOnDelete(false);
40     }
41     
42     protected void store() {
43         CascadeDeleteFalse cdf = new CascadeDeleteFalse();
44         cdf.h1 = new CascadeDeleteFalseHelper();
45         cdf.h2 = new CascadeDeleteFalseHelper();
46         cdf.h3 = new CascadeDeleteFalseHelper();
47         db().set(cdf);
48     }
49     
50     public void test() {
51         checkHelperCount(3);
52         
53         CascadeDeleteFalse cdf = (CascadeDeleteFalse)retrieveOnlyInstance(getClass());
54         db().delete(cdf);
55         
56         checkHelperCount(1);
57     }
58     
59     private void checkHelperCount (int count){
60         Assert.areEqual(count, countOccurences(CascadeDeleteFalseHelper.class));
61     }
62 }
63
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