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.events;
22:
23: import com.db4o.internal.*;
24:
25: /**
26: * Argument for object related events which can be cancelled.
27: *
28: * @see EventRegistry
29: * @see CancellableEventArgs
30: */
31: public class CancellableObjectEventArgs extends ObjectEventArgs
32: implements CancellableEventArgs {
33: private boolean _cancelled;
34:
35: /**
36: * Creates a new instance for the specified object.
37: */
38: public CancellableObjectEventArgs(Transaction transaction,
39: Object obj) {
40: super (transaction, obj);
41: }
42:
43: /**
44: * @see CancellableEventArgs#cancel()
45: */
46: public void cancel() {
47: _cancelled = true;
48: }
49:
50: /**
51: * @see CancellableEventArgs#isCancelled()
52: */
53: public boolean isCancelled() {
54: return _cancelled;
55: }
56: }
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