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.

    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 sun.jvmstat.monitor.event;

    27 

    28 import java.util.List;

    29 import sun.jvmstat.monitor.MonitoredVm;

    30 import 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

    40 public 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 }