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.internal.callbacks;
22:
23: import com.db4o.internal.*;
24: import com.db4o.query.Query;
25:
26: public class NullCallbacks implements Callbacks {
27:
28: public void queryOnFinished(Transaction transaction, Query query) {
29: }
30:
31: public void queryOnStarted(Transaction transaction, Query query) {
32: }
33:
34: public boolean objectCanNew(Transaction transaction, Object obj) {
35: return true;
36: }
37:
38: public boolean objectCanActivate(Transaction transaction, Object obj) {
39: return true;
40: }
41:
42: public boolean objectCanUpdate(Transaction transaction, Object obj) {
43: return true;
44: }
45:
46: public boolean objectCanDelete(Transaction transaction, Object obj) {
47: return true;
48: }
49:
50: public boolean objectCanDeactivate(Transaction transaction,
51: Object obj) {
52: return true;
53: }
54:
55: public void objectOnNew(Transaction transaction, Object obj) {
56: }
57:
58: public void objectOnActivate(Transaction transaction, Object obj) {
59: }
60:
61: public void objectOnUpdate(Transaction transaction, Object obj) {
62: }
63:
64: public void objectOnDelete(Transaction transaction, Object obj) {
65: }
66:
67: public void objectOnDeactivate(Transaction transaction, Object obj) {
68: }
69:
70: public void objectOnInstantiate(Transaction transaction, Object obj) {
71: }
72:
73: public void commitOnStarted(Transaction transaction,
74: CallbackObjectInfoCollections objectInfoCollections) {
75: }
76:
77: public void commitOnCompleted(Transaction transaction,
78: CallbackObjectInfoCollections objectInfoCollections) {
79: }
80:
81: public boolean caresAboutCommitting() {
82: return false;
83: }
84:
85: public boolean caresAboutCommitted() {
86: return false;
87: }
88:
89: public void classOnRegistered(ClassMetadata clazz) {
90: }
91:
92: public boolean caresAboutDeleting() {
93: return false;
94: }
95:
96: public boolean caresAboutDeleted() {
97: return false;
98: }
99: }
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