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Java > Open Source Codes > com > db4o > events > impl > EventPlatform


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.events.impl;
22
23 import com.db4o.events.CancellableObjectEventArgs;
24 import com.db4o.events.ObjectEventArgs;
25 import com.db4o.events.QueryEventArgs;
26 import com.db4o.query.Query;
27
28 /**
29  * Platform dependent code for dispatching events.
30  *
31  * @sharpen.ignore
32  */
33 class EventPlatform {
34
35     public static void triggerQueryEvent(Event4Impl e, Query q) {
36         e.trigger(new QueryEventArgs(q));
37     }
38     
39     public static boolean triggerCancellableObjectEventArgs(Event4Impl e, Object JavaDoc o) {
40         CancellableObjectEventArgs args = new CancellableObjectEventArgs(o);
41         e.trigger(args);
42         return !args.isCancelled();
43     }
44     
45     public static void triggerObjectEvent(Event4Impl e, Object JavaDoc o) {
46         e.trigger(new ObjectEventArgs(o));
47     }
48 }
49
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