1 /*
2 * The Apache Software License, Version 1.1
3 *
4 * Copyright (c) 1999, 2000 The Apache Software Foundation. All rights
5 * reserved.
6 *
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted provided that the following conditions
9 * are met:
10 *
11 * 1. Redistributions of source code must retain the above copyright
12 * notice, this list of conditions and the following disclaimer.
13 *
14 * 2. Redistributions in binary form must reproduce the above copyright
15 * notice, this list of conditions and the following disclaimer in
16 * the documentation and/or other materials provided with the
17 * distribution.
18 *
19 * 3. The end-user documentation included with the redistribution, if
20 * any, must include the following acknowlegement:
21 * "This product includes software developed by the
22 * Apache Software Foundation (http://www.apache.org/)."
23 * Alternately, this acknowlegement may appear in the software itself,
24 * if and wherever such third-party acknowlegements normally appear.
25 *
26 * 4. The names "The Jakarta Project", "Ant", and "Apache Software
27 * Foundation" must not be used to endorse or promote products derived
28 * from this software without prior written permission. For written
29 * permission, please contact apache@apache.org.
30 *
31 * 5. Products derived from this software may not be called "Apache"
32 * nor may "Apache" appear in their names without prior written
33 * permission of the Apache Group.
34 *
35 * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED
36 * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
37 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
38 * DISCLAIMED. IN NO EVENT SHALL THE APACHE SOFTWARE FOUNDATION OR
39 * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
40 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
41 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
42 * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
43 * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
44 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
45 * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
46 * SUCH DAMAGE.
47 * ====================================================================
48 *
49 * This software consists of voluntary contributions made by many
50 * individuals on behalf of the Apache Software Foundation. For more
51 * information on the Apache Software Foundation, please see
52 * <http://www.apache.org/>;.
53 */
54 package tweed.system.bus;
55 import java.util.EventObject;
56
57
58 /***
59 * Interace for determining whether an event should be given to a BusMember
60 * instance.
61 *
62 * @version $Revision: 1.1 $
63 * @author Simeon Fitch (source taken out from Ant Antidote)
64 */
65 public interface BusFilter {
66
67 /***
68 * Determines if the given event should be accepted.
69 *
70 * @param event Event to test.
71 * @return True if event should be given to BusMember, false otherwise.
72 */
73 boolean accept( EventObject event ) ;
74 }
75
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