01: /* Copyright (C) 2004 - 2007 db4objects Inc. http://www.db4o.com
02:
03: This file is part of the db4o open source object database.
04:
05: db4o is free software; you can redistribute it and/or modify it under
06: the terms of version 2 of the GNU General Public License as published
07: by the Free Software Foundation and as clarified by db4objects' GPL
08: interpretation policy, available at
09: 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(),
49: new Visitor4() {
50: public void visit(Object obj) {
51: CascadeToExistingVectorMember cev = (CascadeToExistingVectorMember) obj;
52: Atom atom = (Atom) cev.vec.elementAt(0);
53: atom.name = "two";
54: Test.store(cev);
55: atom.name = "three";
56: Test.store(cev);
57: }
58: });
59:
60: Test.reOpen();
61:
62: Test.forEach(new CascadeToExistingVectorMember(),
63: new Visitor4() {
64: public void visit(Object obj) {
65: CascadeToExistingVectorMember cev = (CascadeToExistingVectorMember) obj;
66: Atom atom = (Atom) cev.vec.elementAt(0);
67: Test.ensure(atom.name.equals("three"));
68: Test.ensureOccurrences(atom, 1);
69: }
70: });
71:
72: Test.forEach(new CascadeToExistingVectorMember(),
73: new Visitor4() {
74: public void visit(Object obj) {
75: CascadeToExistingVectorMember cev = (CascadeToExistingVectorMember) obj;
76: Atom atom = (Atom) cev.vec.elementAt(0);
77: atom.name = "four";
78: Test.store(cev);
79: }
80: });
81:
82: Test.reOpen();
83:
84: Test.forEach(new CascadeToExistingVectorMember(),
85: new Visitor4() {
86: public void visit(Object obj) {
87: CascadeToExistingVectorMember cev = (CascadeToExistingVectorMember) obj;
88: Atom atom = (Atom) cev.vec.elementAt(0);
89: Test.ensure(atom.name.equals("four"));
90: Test.ensureOccurrences(atom, 1);
91: }
92: });
93:
94: }
95: }
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