1 /*
2 * Copyright (c) 1996, 2000, Oracle and/or its affiliates. All rights reserved.
3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
4 *
5 * This code is free software; you can redistribute it and/or modify it
6 * under the terms of the GNU General Public License version 2 only, as
7 * published by the Free Software Foundation. Oracle designates this
8 * particular file as subject to the "Classpath" exception as provided
9 * by Oracle 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 Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
22 * or visit www.oracle.com if you need additional information or have any
23 * questions.
24 */
25
26 package java.awt;
27
28 import java.awt.event.*;
29
30 /**
31 * The interface for objects which contain a set of items for
32 * which zero or more can be selected.
33 *
34 * @author Amy Fowler
35 */
36
37 public interface ItemSelectable {
38
39 /**
40 * Returns the selected items or <code>null</code> if no
41 * items are selected.
42 */
43 public Object[] getSelectedObjects();
44
45 /**
46 * Adds a listener to receive item events when the state of an item is
47 * changed by the user. Item events are not sent when an item's
48 * state is set programmatically. If <code>l</code> is
49 * <code>null</code>, no exception is thrown and no action is performed.
50 *
51 * @param l the listener to receive events
52 * @see ItemEvent
53 */
54 public void addItemListener(ItemListener l);
55
56 /**
57 * Removes an item listener.
58 * If <code>l</code> is <code>null</code>,
59 * no exception is thrown and no action is performed.
60 *
61 * @param l the listener being removed
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1 /*
2 * Copyright (c) 1996, 2014, Oracle and/or its affiliates. All rights reserved.
3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
4 *
5 * This code is free software; you can redistribute it and/or modify it
6 * under the terms of the GNU General Public License version 2 only, as
7 * published by the Free Software Foundation. Oracle designates this
8 * particular file as subject to the "Classpath" exception as provided
9 * by Oracle 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 Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
22 * or visit www.oracle.com if you need additional information or have any
23 * questions.
24 */
25
26 package java.awt;
27
28 import java.awt.event.*;
29
30 /**
31 * The interface for objects which contain a set of items for
32 * which zero or more can be selected.
33 *
34 * @author Amy Fowler
35 */
36
37 public interface ItemSelectable {
38
39 /**
40 * Returns the selected items or <code>null</code> if no
41 * items are selected.
42 *
43 * @return the list of selected objects, or {@code null}
44 */
45 public Object[] getSelectedObjects();
46
47 /**
48 * Adds a listener to receive item events when the state of an item is
49 * changed by the user. Item events are not sent when an item's
50 * state is set programmatically. If <code>l</code> is
51 * <code>null</code>, no exception is thrown and no action is performed.
52 *
53 * @param l the listener to receive events
54 * @see ItemEvent
55 */
56 public void addItemListener(ItemListener l);
57
58 /**
59 * Removes an item listener.
60 * If <code>l</code> is <code>null</code>,
61 * no exception is thrown and no action is performed.
62 *
63 * @param l the listener being removed
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