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J. Duke319a3b92007-12-01 00:00:00 +00001/*
2 * Copyright 1998-2004 Sun Microsystems, Inc. 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. Sun designates this
8 * particular file as subject to the "Classpath" exception as provided
9 * 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
26package com.sun.jdi.event;
27
28import com.sun.jdi.*;
29
30/**
31 * Notification of a method return in the target VM. This event
32 * is generated after all code in the method has executed, but the
33 * location of this event is the last executed location in the method.
34 * Method exit events are generated for both native and non-native
35 * methods. Method exit events are not generated if the method terminates
36 * with a thrown exception.
37 *
38 * @see EventQueue
39 *
40 * @author Robert Field
41 * @since 1.3
42 */
43public interface MethodExitEvent extends LocatableEvent {
44
45 /**
46 * Returns the method that was exited.
47 *
48 * @return a {@link Method} which mirrors the method that was exited.
49 * @throws ObjectCollectedException may be thrown if class
50 * has been garbage collected.
51 */
52 public Method method();
53
54 /**
55 * Returns the value that the method will return.
56 *
57 * Not all target virtual machines support this operation.
58 * Use
59 * {@link VirtualMachine#canGetMethodReturnValues() canGetMethodReturnValues()}
60 * to determine if this operation is supported.
61 *
62 * @return a {@link Value} which mirrors the value to be returned.
63 *
64 * @throws java.lang.UnsupportedOperationException if
65 * the target virtual machine does not support this
66 * operation - see
67 * {@link VirtualMachine#canGetMethodReturnValues() canGetMethodReturnValues()}
68 *
69 * @since 1.6
70 */
71
72 public Value returnValue();
73}