01 /*
02 * Copyright 2003 Sun Microsystems, Inc. All Rights Reserved.
03 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
04 *
05 * This code is free software; you can redistribute it and/or modify it
06 * under the terms of the GNU General Public License version 2 only, as
07 * published by the Free Software Foundation. Sun designates this
08 * particular file as subject to the "Classpath" exception as provided
09 * by Sun in the LICENSE file that accompanied this code.
10 *
11 * This code is distributed in the hope that it will be useful, but WITHOUT
12 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
13 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
14 * version 2 for more details (a copy is included in the LICENSE file that
15 * accompanied this code).
16 *
17 * You should have received a copy of the GNU General Public License version
18 * 2 along with this work; if not, write to the Free Software Foundation,
19 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
20 *
21 * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
22 * CA 95054 USA or visit www.sun.com if you need additional information or
23 * have any questions.
24 */
25 package java.awt.datatransfer;
26
27 import java.util.EventListener;
28
29 /**
30 * Defines an object which listens for {@link FlavorEvent}s.
31 *
32 * @version 1.10 05/05/07
33 * @author Alexander Gerasimov
34 * @since 1.5
35 */
36 public interface FlavorListener extends EventListener {
37 /**
38 * Invoked when the target {@link Clipboard} of the listener
39 * has changed its available {@link DataFlavor}s.
40 * <p>
41 * Some notifications may be redundant — they are not
42 * caused by a change of the set of DataFlavors available
43 * on the clipboard.
44 * For example, if the clipboard subsystem supposes that
45 * the system clipboard's contents has been changed but it
46 * can't ascertain whether its DataFlavors have been changed
47 * because of some exceptional condition when accessing the
48 * clipboard, the notification is sent to ensure from omitting
49 * a significant notification. Ordinarily, those redundant
50 * notifications should be occasional.
51 *
52 * @param e a <code>FlavorEvent</code> object
53 */
54 void flavorsChanged(FlavorEvent e);
55 }
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