org.jboss.ejb3.statistics
Class InvocationStatistics

java.lang.Object
  org.jboss.ejb3.statistics.InvocationStatistics

All Implemented Interfaces:

java.io.Serializable

public class InvocationStatistics
extends java.lang.Object
implements java.io.Serializable

A method invocation statistics collection class.

See Also:

Serialized Form

Nested Class Summary

class

InvocationStatistics.TimeStatistic

Field Summary

java.util.concurrent.atomic.AtomicLong	concurrentCalls
long	lastResetTime
long	maxConcurrentCalls

Constructor Summary

InvocationStatistics()

Method Summary

void	callIn()
void	callOut()
java.util.Map<java.lang.String,InvocationStatistics.TimeStatistic>	getStats() Accesses an immutable view of the current collection of method invocation statistics
void	resetStats() Resets all current TimeStatistics.
java.lang.String	toString() Generate an XML fragement for the InvocationStatistics.
java.lang.String	toXmlString()
void	updateStats(java.lang.reflect.Method m, long elapsed) Update the TimeStatistic for the given method.

Methods inherited from class java.lang.Object

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

Field Detail

concurrentCalls

public java.util.concurrent.atomic.AtomicLong concurrentCalls

maxConcurrentCalls

public volatile long maxConcurrentCalls

lastResetTime

public long lastResetTime

Constructor Detail

InvocationStatistics

public InvocationStatistics()

Method Detail

updateStats

public void updateStats(java.lang.reflect.Method m,
                        long elapsed)

Update the TimeStatistic for the given method. This synchronizes on this to ensure that the TimeStatistic for m is updated atomically.

Parameters:

m - the method to update the statistics for.

elapsed - the elapsed time in milliseconds for the invocation.

callIn

public void callIn()

callOut

public void callOut()

resetStats

public void resetStats()

Resets all current TimeStatistics.

getStats

public java.util.Map<java.lang.String,InvocationStatistics.TimeStatistic> getStats()

Accesses an immutable view of the current collection of method invocation statistics

Returns:

A HashMap of the method invocations

toString

public java.lang.String toString()

Generate an XML fragement for the InvocationStatistics. The format is ...

Overrides:

toString in class java.lang.Object

Returns:

an XML representation of the InvocationStatistics

toXmlString

public java.lang.String toXmlString()