org.eclipse.microprofile.metrics

Interface Timer

All Superinterfaces:

Metric, Sampling

public interface Timer
extends Metric, Sampling

A timer metric which aggregates timing durations and provides duration statistics

Nested Class Summary

Nested Classes

Modifier and Type	Interface and Description
static interface	Timer.Context A timing context.

Method Summary

Modifier and Type	Method and Description
long	getCount()
Duration	getElapsedTime() Returns the total elapsed timing durations of all completed timing events that are recorded with update(Duration).
Snapshot	getSnapshot() Returns a snapshot of the values.
Timer.Context	time() Returns a new Timer.Context.
<T> T	time(Callable<T> event) Times and records the duration of event.
void	time(Runnable event) Times and records the duration of event.
void	update(Duration duration) Adds a recorded duration.

Method Detail

update

void update(Duration duration)

Adds a recorded duration.

Parameters:

duration - the length of the duration

time

<T> T time(Callable<T> event)
    throws Exception

Times and records the duration of event.

Type Parameters:

T - the type of the value returned by event

Parameters:

event - a Callable whose Callable.call() method implements a process whose duration should be timed

Returns:

the value returned by event

Throws:

Exception - if event throws an Exception

time

void time(Runnable event)

Times and records the duration of event.

Parameters:

event - a Runnable whose Runnable.run() method implements a process whose duration should be timed

time

Timer.Context time()

Returns a new Timer.Context.

Returns:

a new Timer.Context

See Also:

Timer.Context

getElapsedTime

Duration getElapsedTime()

Returns the total elapsed timing durations of all completed timing events that are recorded with update(Duration).

Returns:

the elapsed time duration

getCount

long getCount()

getSnapshot

Snapshot getSnapshot()

Description copied from interface: Sampling

Returns a snapshot of the values.

Specified by:

getSnapshot in interface Sampling

Returns:

a snapshot of the values