org.eclipse.jetty.util.statistic
Class CounterStatistic

java.lang.Object
  org.eclipse.jetty.util.statistic.CounterStatistic

public class CounterStatistic
extends Object

Statistics on a counter value.

Keep total, current and maximum values of a counter that can be incremented and decremented. The total refers only to increments.

Field Summary

protected AtomicLong	_curr
protected AtomicLong	_max
protected AtomicLong	_total

Constructor Summary

CounterStatistic()

Method Summary

void	add(long delta)
void	decrement()
long	getCurrent()
long	getMax()
long	getTotal()
void	increment()
void	reset()
void	reset(long value)
void	subtract(long delta)
protected void	upxdateMax(long value)

Methods inherited from class java.lang.Object

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

Field Detail

_max

protected final AtomicLong _max

_curr

protected final AtomicLong _curr

_total

protected final AtomicLong _total

Constructor Detail

CounterStatistic

public CounterStatistic()

Method Detail

reset

public void reset()

reset

public void reset(long value)

add

public void add(long delta)

Parameters:

delta - the amount to add to the count

subtract

public void subtract(long delta)

Parameters:

delta - the amount to subtract the count by.

increment

public void increment()

decrement

public void decrement()

getMax

public long getMax()

Returns:

max value

getCurrent

public long getCurrent()

Returns:

current value

getTotal

public long getTotal()

Returns:

total value

upxdateMax

protected void upxdateMax(long value)