01: /*
02: * Copyright 1998-1999 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:
26: package com.sun.jdi.event;
27:
28: import com.sun.jdi.*;
29:
30: /**
31: * Notification of a class prepare in the target VM. See the JVM
32: * specification for a definition of class preparation. Class prepare
33: * events are not generated for primtiive classes (for example,
34: * java.lang.Integer.TYPE).
35: *
36: * @see EventQueue
37: * @see VirtualMachine
38: *
39: * @author Robert Field
40: * @since 1.3
41: */
42: public interface ClassPrepareEvent extends Event {
43: /**
44: * Returns the thread in which this event has occurred.
45: * <p>
46: * In rare cases, this event may occur in a debugger system
47: * thread within the target VM. Debugger threads take precautions
48: * to prevent these events, but they cannot be avoided under some
49: * conditions, especially for some subclasses of
50: * {@link java.lang.Error}.
51: * If the event was generated by a debugger system thread, the
52: * value returned by this method is null, and if the requested
53: * suspend policy for the event was
54: * {@link com.sun.jdi.request.EventRequest#SUSPEND_EVENT_THREAD},
55: * all threads will be suspended instead, and the
56: * {@link EventSet#suspendPolicy} will reflect this change.
57: * <p>
58: * Note that the discussion above does not apply to system threads
59: * created by the target VM during its normal (non-debug) operation.
60: *
61: * @return a {@link ThreadReference} which mirrors the event's thread in
62: * the target VM, or null in the rare cases described above.
63: */
64: public ThreadReference thread();
65:
66: /**
67: * Returns the reference type for which this event was generated.
68: *
69: * @return a {@link ReferenceType} which mirrors the class, interface, or
70: * array which has been linked.
71: */
72: public ReferenceType referenceType();
73: }
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