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


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 CascadeDeleteArray extends AbstractDb4oTestCase {
29  
30     public static class ArrayElem {
31
32         public String JavaDoc name;
33         
34         public ArrayElem(String JavaDoc name){
35             this.name = name;
36         }
37     }
38
39     public ArrayElem[] array;
40     
41     protected void configure(Configuration config) {
42         config.objectClass(this).cascadeOnDelete(true);
43     }
44     
45     protected void store() {
46         CascadeDeleteArray cda = new CascadeDeleteArray();
47         cda.array = new ArrayElem[] {
48             new ArrayElem("one"),
49             new ArrayElem("two"),
50             new ArrayElem("three"),
51         };
52         db().set(cda);
53     }
54
55     public void test(){
56         
57         CascadeDeleteArray cda = (CascadeDeleteArray)retrieveOnlyInstance(getClass());
58         
59         Assert.areEqual(3, countOccurences(ArrayElem.class));
60         
61         db().delete(cda);
62         
63         Assert.areEqual(0, countOccurences(ArrayElem.class));
64         
65         db().rollback();
66         
67         Assert.areEqual(3, countOccurences(ArrayElem.class));
68         
69         db().delete(cda);
70
71         Assert.areEqual(0, countOccurences(ArrayElem.class));
72
73         db().commit();
74
75         Assert.areEqual(0, countOccurences(ArrayElem.class));
76     }
77 }
78
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