javax.management.monitor
Interface MonitorMBean

All Known Subinterfaces:

CounterMonitorMBean, GaugeMonitorMBean, StringMonitorMBean

All Known Implementing Classes:

Monitor

public interface MonitorMBean

Exposes the remote management interface of monitor MBeans.

Author:

Young Yang

Method Summary

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).
java.lang.String	getObservedAttribute() Gets the attribute being observed.
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(java.lang.String attribute) Sets the attribute to observe.

Method Detail

addObservedObject

public void addObservedObject(ObjectName object)
                       throws java.lang.IllegalArgumentException

Adds the specified object in the set of observed MBeans.

Parameters:

object - The object to observe.

Throws:

java.lang.IllegalArgumentException - the specified object is null.

Since:

JMX 1.2

removeObservedObject

public void removeObservedObject(ObjectName object)

Removes the specified object from the set of observed MBeans.

Parameters:

object - The object to remove.

Since:

JMX 1.2

containsObservedObject

public 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.

Since:

JMX 1.2

getObservedObjects

public ObjectName[] getObservedObjects()

Returns an array containing the objects being observed.

Returns:

The objects being observed.

Since:

JMX 1.2

getObservedAttribute

public java.lang.String getObservedAttribute()

Gets the attribute being observed.

Returns:

The attribute being observed.

See Also:

setObservedAttribute(java.lang.String)

setObservedAttribute

public void setObservedAttribute(java.lang.String attribute)

Sets the attribute to observe.

Parameters:

attribute - The attribute to observe.

See Also:

getObservedAttribute()

getGranularityPeriod

public long getGranularityPeriod()

Gets the granularity period (in milliseconds).

Returns:

The granularity period.

See Also:

setGranularityPeriod(long)

setGranularityPeriod

public void setGranularityPeriod(long period)
                          throws java.lang.IllegalArgumentException

Sets the granularity period (in milliseconds).

Parameters:

period - The granularity period.

Throws:

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

See Also:

getGranularityPeriod()

isActive

public boolean isActive()

Tests if the monitor MBean is active. A monitor MBean is marked active when the doStart() method is called. It becomes inactive when the doStart() method is called.

Returns:

true if the monitor MBean is active, false otherwise.