Module java.management

Package javax.management.monitor

Interface MonitorMBean

All Known Subinterfaces:

CounterMonitorMBean, GaugeMonitorMBean, StringMonitorMBean

All Known Implementing Classes:

CounterMonitor, GaugeMonitor, Monitor, StringMonitor

public interface MonitorMBean

Exposes the remote management interface of monitor MBeans.

Since:

1.5

Method Summary

Modifier and Type	Method	Description
void	addObservedObject(ObjectName object)	Adds the specified object in the set of observed MBeans.
boolean	containsObservedObject(ObjectName object)	Tests whether the specified object is in the set of observed MBeans.
long	getGranularityPeriod()	Gets the granularity period (in milliseconds).
String	getObservedAttribute()	Gets the attribute being observed.
ObjectName	getObservedObject()	Deprecated. As of JMX 1.2, replaced by getObservedObjects()
ObjectName[]	getObservedObjects()	Returns an array containing the objects being observed.
boolean	isActive()	Tests if the monitor MBean is active.
void	removeObservedObject(ObjectName object)	Removes the specified object from the set of observed MBeans.
void	setGranularityPeriod(long period)	Sets the granularity period (in milliseconds).
void	setObservedAttribute(String attribute)	Sets the attribute to observe.
void	setObservedObject(ObjectName object)	Deprecated. As of JMX 1.2, replaced by addObservedObject(javax.management.ObjectName)
void	start()	Starts the monitor.
void	stop()	Stops the monitor.

Method Details

start

void start()

Starts the monitor.

stop

void stop()

Stops the monitor.

addObservedObject

void addObservedObject(ObjectName object)
                throws IllegalArgumentException

Adds the specified object in the set of observed MBeans.

Parameters:

object - The object to observe.

Throws:

IllegalArgumentException - the specified object is null.

removeObservedObject

void removeObservedObject(ObjectName object)

Removes the specified object from the set of observed MBeans.

Parameters:

object - The object to remove.

containsObservedObject

boolean containsObservedObject(ObjectName object)

Tests whether the specified object is in the set of observed MBeans.

Parameters:

object - The object to check.

Returns:

true if the specified object is in the set, false otherwise.

getObservedObjects

ObjectName[] getObservedObjects()

Returns an array containing the objects being observed.

Returns:

The objects being observed.

getObservedObject

@Deprecated
ObjectName getObservedObject()

Deprecated.

As of JMX 1.2, replaced by getObservedObjects()

Gets the object name of the object being observed.

Returns:

The object being observed.

See Also:

• setObservedObject(javax.management.ObjectName)

setObservedObject

@Deprecated
void setObservedObject(ObjectName object)

Deprecated.

As of JMX 1.2, replaced by addObservedObject(javax.management.ObjectName)

Sets the object to observe identified by its object name.

Parameters:

object - The object to observe.

See Also:

• getObservedObject()

getObservedAttribute

String getObservedAttribute()

Gets the attribute being observed.

Returns:

The attribute being observed.

See Also:

• setObservedAttribute(java.lang.String)

setObservedAttribute

void setObservedAttribute(String attribute)

Sets the attribute to observe.

Parameters:

attribute - The attribute to observe.

See Also:

• getObservedAttribute()

getGranularityPeriod

long getGranularityPeriod()

Gets the granularity period (in milliseconds).

Returns:

The granularity period.

See Also:

• setGranularityPeriod(long)

setGranularityPeriod

void setGranularityPeriod(long period)
                   throws IllegalArgumentException

Sets the granularity period (in milliseconds).

Parameters:

period - The granularity period.

Throws:

IllegalArgumentException - The granularity period is less than or equal to zero.

See Also:

• getGranularityPeriod()

isActive

boolean isActive()

Tests if the monitor MBean is active. A monitor MBean is marked active when the start method is called. It becomes inactive when the stop method is called.

Returns:

true if the monitor MBean is active, false otherwise.