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


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 java.util.*;
24
25 import com.db4o.*;
26 import com.db4o.foundation.*;
27
28 public class CascadeToExistingVectorMember {
29     
30     public Vector vec;
31     
32     public void configure(){
33         Db4o.configure().objectClass(this).cascadeOnUpdate(true);
34     }
35     
36     public void store(){
37         Test.deleteAllInstances(new Atom());
38         Test.deleteAllInstances(this);
39         CascadeToExistingVectorMember cev = new CascadeToExistingVectorMember();
40         cev.vec = new Vector();
41         Atom atom = new Atom("one");
42         Test.store(atom);
43         cev.vec.addElement(atom);
44         Test.store(cev);
45     }
46     
47     public void test(){
48         Test.forEach(new CascadeToExistingVectorMember(), new Visitor4() {
49             public void visit(Object JavaDoc obj) {
50                 CascadeToExistingVectorMember cev = (CascadeToExistingVectorMember)obj;
51                 Atom atom = (Atom)cev.vec.elementAt(0);
52                 atom.name = "two";
53                 Test.store(cev);
54                 atom.name = "three";
55                 Test.store(cev);
56             }
57         });
58         
59         Test.reOpen();
60         
61         Test.forEach(new CascadeToExistingVectorMember(), new Visitor4() {
62             public void visit(Object JavaDoc obj) {
63                 CascadeToExistingVectorMember cev = (CascadeToExistingVectorMember)obj;
64                 Atom atom = (Atom)cev.vec.elementAt(0);
65                 Test.ensure(atom.name.equals("three"));
66                 Test.ensureOccurrences(atom, 1);
67             }
68         });
69         
70         Test.forEach(new CascadeToExistingVectorMember(), new Visitor4() {
71             public void visit(Object JavaDoc obj) {
72                 CascadeToExistingVectorMember cev = (CascadeToExistingVectorMember)obj;
73                 Atom atom = (Atom)cev.vec.elementAt(0);
74                 atom.name = "four";
75                 Test.store(cev);
76             }
77         });
78         
79         
80         Test.reOpen();
81         
82         Test.forEach(new CascadeToExistingVectorMember(), new Visitor4() {
83             public void visit(Object JavaDoc obj) {
84                 CascadeToExistingVectorMember cev = (CascadeToExistingVectorMember)obj;
85                 Atom atom = (Atom)cev.vec.elementAt(0);
86                 Test.ensure(atom.name.equals("four"));
87                 Test.ensureOccurrences(atom, 1);
88             }
89         });
90         
91         
92     }
93 }
94
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