javax.management.monitor

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Package javax.management.monitor

The JBossMX monitor services.

See:
Description

Interface Summary
CounterMonitorMBean (src)	The counter monitor service MBean interface.
GaugeMonitorMBean (src)	The gauge monitor service MBean interface.
MonitorMBean (src)	The monitor service MBean interface.
StringMonitorMBean (src)	The string monitor service MBean interface.

Class Summary
CounterMonitor (src)	The counter monitor service.
GaugeMonitor (src)	The gauge monitor service.
Monitor (src)	The monitor service.
MonitorNotification (src)	A notification from one of the monitor services.
StringMonitor (src)	The string monitor service.

Exception Summary
MonitorSettingException (src)	Thrown by a monitor when a monitor setting becomes invalid.

The JBossMX monitor services.

The monitor services allow notifications to be sent when attribute values change. The notification is NOT done in real time, rather the value is polled at regular intervals. Notifications are also sent when the monitoring cannot be performed for various reasons.
The monitor services are registered as separate MBeans for each attribute. Any number of notification listeners can be added to these services, to perform the required operations.
The CounterMonitor is used for "integer" attributes that only increase, except for modulus behaviour (e.g. a 24 hour clock).
The GaugeMonitor is used for numeric attributes that can both increase and decrease.
The StringMonitor is used for any attribute to check for a matching or differing value.

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