org.jboss.monitor
Class EntityLockMonitor

java.lang.Object
  org.jboss.mx.util.JBossNotificationBroadcasterSupport
      org.jboss.system.ServiceMBeanSupport
          org.jboss.monitor.EntityLockMonitor

All Implemented Interfaces:

javax.management.MBeanRegistration, javax.management.NotificationBroadcaster, javax.management.NotificationEmitter, EntityLockMonitorMBean, org.jboss.system.Service, org.jboss.system.ServiceMBean

public class EntityLockMonitor
extends org.jboss.system.ServiceMBeanSupport
implements EntityLockMonitorMBean

MBean implementation for providing Locking Stats for EntityBeans

Version:

$Revision: 1.6.6.2 $

Author:

Bill Burke, Dimitris Andreadis

Field Summary

protected long	contenders
protected long	contentions
static String	JNDI_NAME
protected long	maxContenders
protected HashMap	monitorMap
protected long	sumContenders
protected ArrayList	times
protected long	totalTime

Fields inherited from class org.jboss.system.ServiceMBeanSupport

log, server, SERVICE_CONTROLLER_SIG, serviceName

Fields inherited from interface org.jboss.system.ServiceMBean

CREATE_EVENT, CREATED, DESTROY_EVENT, DESTROYED, FAILED, REGISTERED, START_EVENT, STARTED, STARTING, states, STOP_EVENT, STOPPED, STOPPING, UNREGISTERED

Constructor Summary

EntityLockMonitor()

Method Summary

void	clearMonitor()
void	decrementContenders(long time)
long	getAverageContenders()
LockMonitor	getEntityLockMonitor(String jndiName)
LockMonitor	getLockMonitor(String jndiName)
long	getMaxContenders()
long	getMedianWaitTime()
long	getTotalContentions()
void	incrementContenders()
Set	listMonitoredBeans()
String	printLockMonitor()
protected void	startService()
protected void	stopService()

Methods inherited from class org.jboss.system.ServiceMBeanSupport

create, createService, destroy, destroyService, getDeploymentInfo, getLog, getName, getNextNotificationSequenceNumber, getObjectName, getServer, getServiceName, getState, getStateString, jbossInternalCreate, jbossInternalDescription, jbossInternalDestroy, jbossInternalLifecycle, jbossInternalStart, jbossInternalStop, postDeregister, postRegister, preDeregister, preRegister, start, stop

Methods inherited from class org.jboss.mx.util.JBossNotificationBroadcasterSupport

addNotificationListener, getNotificationInfo, handleNotification, nextNotificationSequenceNumber, removeNotificationListener, removeNotificationListener, sendNotification

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.jboss.system.ServiceMBean

getName, getState, getStateString, jbossInternalLifecycle

Methods inherited from interface org.jboss.system.Service

create, destroy, start, stop

Field Detail

JNDI_NAME

public static final String JNDI_NAME

See Also:

Constant Field Values

monitorMap

protected HashMap monitorMap

contenders

protected long contenders

maxContenders

protected long maxContenders

times

protected ArrayList times

contentions

protected long contentions

totalTime

protected long totalTime

sumContenders

protected long sumContenders

Constructor Detail

EntityLockMonitor

public EntityLockMonitor()

Method Detail

startService

protected void startService()
                     throws Exception

Overrides:

startService in class org.jboss.system.ServiceMBeanSupport

Throws:

Exception

stopService

protected void stopService()

Overrides:

stopService in class org.jboss.system.ServiceMBeanSupport

getAverageContenders

public long getAverageContenders()

Specified by:

getAverageContenders in interface EntityLockMonitorMBean

getMaxContenders

public long getMaxContenders()

Specified by:

getMaxContenders in interface EntityLockMonitorMBean

getMedianWaitTime

public long getMedianWaitTime()

Specified by:

getMedianWaitTime in interface EntityLockMonitorMBean

getTotalContentions

public long getTotalContentions()

Specified by:

getTotalContentions in interface EntityLockMonitorMBean

listMonitoredBeans

public Set listMonitoredBeans()

Specified by:

listMonitoredBeans in interface EntityLockMonitorMBean

getLockMonitor

public LockMonitor getLockMonitor(String jndiName)

Specified by:

getLockMonitor in interface EntityLockMonitorMBean

Returns:

the LockMonitor that corresponds to the jndiName or null

printLockMonitor

public String printLockMonitor()

Specified by:

printLockMonitor in interface EntityLockMonitorMBean

clearMonitor

public void clearMonitor()

Specified by:

clearMonitor in interface EntityLockMonitorMBean

incrementContenders

public void incrementContenders()

decrementContenders

public void decrementContenders(long time)

getEntityLockMonitor

public LockMonitor getEntityLockMonitor(String jndiName)