Package org.apache.jackrabbit.oak.stats

Class NoopStats

java.lang.Object

org.apache.jackrabbit.oak.stats.NoopStats

All Implemented Interfaces:

CounterStats, Counting, HistogramStats, MeterStats, Stats, TimerStats

public final class NoopStats
extends java.lang.Object
implements TimerStats, MeterStats, CounterStats, HistogramStats

Nested Class Summary

Nested classes/interfaces inherited from interface org.apache.jackrabbit.oak.stats.TimerStats

TimerStats.Context

Field Summary

Fields

Modifier and Type	Field	Description
static NoopStats	INSTANCE

Method Summary

Modifier and Type	Method	Description
void	dec()	Decrement the counter by one.
void	dec(long n)	Decrement the counter by n.
long	getCount()	Returns the current count.
void	inc()	Increment the counter by one.
void	inc(long n)	Increment the counter by n.
void	mark()	Mark the occurrence of an event.
void	mark(long n)	Mark the occurrence of a given number of events.
TimerStats.Context	time()	Returns a new TimerStats.Context.
void	update(long value)	Adds a recorded value.
void	update(long duration, java.util.concurrent.TimeUnit unit)	Adds a recorded duration.

Methods inherited from class java.lang.Object

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

Field Detail

INSTANCE

public static final NoopStats INSTANCE

Method Detail

getCount

public long getCount()

Description copied from interface: Counting

Returns the current count.

Specified by:

getCount in interface Counting

Returns:

the current count

inc

public void inc()

Description copied from interface: CounterStats

Increment the counter by one.

Specified by:

inc in interface CounterStats

dec

public void dec()

Description copied from interface: CounterStats

Decrement the counter by one.

Specified by:

dec in interface CounterStats

inc

public void inc(long n)

Description copied from interface: CounterStats

Increment the counter by n.

Specified by:

inc in interface CounterStats

Parameters:

n - the amount by which the counter will be increased

dec

public void dec(long n)

Description copied from interface: CounterStats

Decrement the counter by n.

Specified by:

dec in interface CounterStats

Parameters:

n - the amount by which the counter will be decreased

mark

public void mark()

Description copied from interface: MeterStats

Mark the occurrence of an event.

Specified by:

mark in interface MeterStats

mark

public void mark(long n)

Description copied from interface: MeterStats

Mark the occurrence of a given number of events.

Specified by:

mark in interface MeterStats

Parameters:

n - the number of events

update

public void update(long duration,
                   java.util.concurrent.TimeUnit unit)

Description copied from interface: TimerStats

Adds a recorded duration.

Specified by:

update in interface TimerStats

Parameters:

duration - the length of the duration

unit - the scale unit of duration

time

public TimerStats.Context time()

Description copied from interface: TimerStats

Returns a new TimerStats.Context.

Specified by:

time in interface TimerStats

Returns:

a new TimerStats.Context

See Also:

TimerStats.Context

update

public void update(long value)

Description copied from interface: HistogramStats

Adds a recorded value.

Specified by:

update in interface HistogramStats

Parameters:

value - the length of the value