org.apache.commons.monitoring.impl.monitors
Class ObservableMonitor

java.lang.Object
  org.apache.commons.monitoring.impl.monitors.AbstractMonitor
      org.apache.commons.monitoring.impl.monitors.ObservableMonitor

All Implemented Interfaces:

Monitor, Monitor.Observable

Direct Known Subclasses:

CreateValuesOnDemandMonitor

public abstract class ObservableMonitor
extends AbstractMonitor
implements Monitor.Observable

Monitor implementation with support for listeners

Author:

Nicolas De Loof

Nested Class Summary

Nested classes/interfaces inherited from interface org.apache.commons.monitoring.Monitor

Monitor.Key, Monitor.Listener, Monitor.Observable

Field Summary

Fields inherited from interface org.apache.commons.monitoring.Monitor

CONCURRENCY, FAILURES, PERFORMANCES

Constructor Summary

ObservableMonitor(Monitor.Key key)
Constructor

Method Summary

void	addListener(Monitor.Listener listener)
protected <T extends StatValue> T	register(T value) Register the StatValue for the role, if none was registered before
void	removeListener(Monitor.Listener listener)

Methods inherited from class org.apache.commons.monitoring.impl.monitors.AbstractMonitor

getCounter, getCounter, getGauge, getGauge, getKey, getRoles, getValue, getValue, getValues, reset

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Methods inherited from interface org.apache.commons.monitoring.Monitor

getCounter, getCounter, getGauge, getGauge, getKey, getRoles, getValue, getValue, getValues, reset

Constructor Detail

ObservableMonitor

public ObservableMonitor(Monitor.Key key)

Constructor

Parameters:

key - the monitor identifier

Method Detail

register

protected <T extends StatValue> T register(T value)

Register the StatValue for the role, if none was registered before

Overrides:

register in class AbstractMonitor

Parameters:

value -

role -

Returns:

the value registered, or a previously existing one

addListener

public void addListener(Monitor.Listener listener)

Specified by:

addListener in interface Monitor.Observable

Parameters:

listener - listener to get registered

removeListener

public void removeListener(Monitor.Listener listener)

Specified by:

removeListener in interface Monitor.Observable

Parameters:

listener - listener to get removed