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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      */
MonitorStatusChangeEvent(MonitoredVm vm, List<Monitor> inserted, List<Monitor> removed)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      */
getInserted()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      */
getRemoved()91     public List<Monitor> getRemoved() {
92         return removed;
93     }
94 }
95