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 CascadeToHashMap {
29:
30: HashMap hm;
31:
32: public void configure() {
33: Db4o.configure().objectClass(this ).cascadeOnUpdate(true);
34: Db4o.configure().objectClass(this ).cascadeOnDelete(true);
35: }
36:
37: public void store() {
38: Test.deleteAllInstances(this );
39: Test.deleteAllInstances(new Atom());
40: CascadeToHashMap cth = new CascadeToHashMap();
41: cth.hm = new HashMap();
42: cth.hm.put("key1", new Atom("stored1"));
43: cth.hm.put("key2",
44: new Atom(new Atom("storedChild1"), "stored2"));
45: Test.store(cth);
46: }
47:
48: public void test() {
49:
50: Test.forEach(this , new Visitor4() {
51: public void visit(Object obj) {
52: CascadeToHashMap cth = (CascadeToHashMap) obj;
53: cth.hm.put("key1", new Atom("updated1"));
54: Atom atom = (Atom) cth.hm.get("key2");
55: atom.name = "updated2";
56: Test.store(cth);
57: }
58: });
59: Test.reOpen();
60:
61: Test.forEach(this , new Visitor4() {
62: public void visit(Object obj) {
63: CascadeToHashMap cth = (CascadeToHashMap) obj;
64: Atom atom = (Atom) cth.hm.get("key1");
65: Test.ensure(atom.name.equals("updated1"));
66: atom = (Atom) cth.hm.get("key2");
67: Test.ensure(atom.name.equals("updated2"));
68: }
69: });
70:
71: // Cascade-On-Delete Test: We only want one atom to remain.
72:
73: Test.reOpen();
74: Test.deleteAllInstances(this );
75: Test.ensureOccurrences(new Atom(), 1);
76: }
77: }
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