1 /* 2 * Copyright (c) 1998, 2013, 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 com.sun.jdi.event; 27 28 import com.sun.jdi.*; 29 import com.sun.jdi.request.EventRequest; 30 31 /** 32 * An occurrence in a target VM that is of interest to a debugger. Event is 33 * the common superinterface for all events (examples include 34 * {@link BreakpointEvent}, {@link ExceptionEvent}, 35 * {@link ClassPrepareEvent}). 36 * When an event occurs, an instance of Event as a component of 37 * an {@link EventSet} is enqueued in the 38 * {@link VirtualMachine}'s {@link EventQueue}. 39 * 40 * @see EventSet 41 * @see EventQueue 42 * 43 * @author Robert Field 44 * @since 1.3 45 */ 46 @jdk.Exported 47 public interface Event extends Mirror { 48 49 /** 50 * @return The {@link EventRequest} that requested this event. 51 * Some events (eg. {@link VMDeathEvent}) may not have 52 * a cooresponding request and thus will return null. 53 */ request()54 EventRequest request(); 55 } 56