1/*
2 * Copyright (c) 2004, 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.
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21 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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24 */
25
26package sun.jvmstat.monitor.event;
27
28import java.util.List;
29import sun.jvmstat.monitor.MonitoredVm;
30import sun.jvmstat.monitor.Monitor;
31
32/**
33 * Provides a description of a change in status of the instrumentation
34 * exported by the MonitoredVm.
35 *
36 * @author Brian Doherty
37 * @since 1.5
38 */
39@SuppressWarnings("serial") // JDK implementation class
40public class MonitorStatusChangeEvent extends VmEvent {
41
42    /**
43     * List of instrumentation objects inserted since the last event.
44     * Elements of this list will always be of type Monitor.
45     */
46    protected List<Monitor> inserted;
47
48    /**
49     * List of instrumentation objects removed since the last event.
50     * Elements of this list will always be of type Monitor.
51     */
52    protected List<Monitor> removed;
53
54    /**
55     * Construct a new MonitorStatusChangeEvent.
56     *
57     * @param vm the MonitoredVm source of the event.
58     * @param inserted the list of instrumentation objects inserted since
59     *                 the last event.
60     * @param removed the list of instrumentation objects removed since
61     *                the last event.
62     */
63    public MonitorStatusChangeEvent(MonitoredVm vm, List<Monitor> inserted,
64                                    List<Monitor> removed) {
65        super(vm);
66        this.inserted = inserted;
67        this.removed = removed;
68    }
69
70    /**
71     * Return the list of instrumentation objects that were inserted
72     * since the last event notification.
73     *
74     * @return List - a List of Monitor objects that were inserted into the
75     *                instrumentation exported by the MonitoredHost. If no
76     *                new instrumentation was inserted, an emply List is
77     *                returned.
78     */
79    public List<Monitor> getInserted() {
80        return inserted;
81    }
82
83    /**
84     * Return the set of instrumentation objects that were removed
85     * since the last event notification.
86     *
87     * @return List - a List of Monitor objects that were removed from the
88     *                instrumentation exported by the MonitoredHost. If no
89     *                instrumentation was removed, an emply List is returned.
90     */
91    public List<Monitor> getRemoved() {
92        return removed;
93    }
94}
95