io.prometheus.client

Class Histogram.Child

java.lang.Object

io.prometheus.client.Histogram.Child

Enclosing class:

Histogram

public static class Histogram.Child
extends Object

The value of a single Histogram.

Warning: References to a Child become invalid after using SimpleCollector.remove(java.lang.String...) or SimpleCollector.clear().

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
static class	Histogram.Child.Value

Method Summary

Modifier and Type	Method and Description
Histogram.Child.Value	get() Get the value of the Histogram.
void	observe(double amt) Observe the given amount.
Histogram.Timer	startTimer() Start a timer to track a duration.
<E> E	time(Callable<E> timeable) Executes callable code (e.g.
double	time(Runnable timeable) Executes runnable code (e.g.

Methods inherited from class java.lang.Object

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

Method Detail

time

public double time(Runnable timeable)

Executes runnable code (e.g. a Java 8 Lambda) and observes a duration of how long it took to run.

Parameters:

timeable - Code that is being timed

Returns:

Measured duration in seconds for timeable to complete.

time

public <E> E time(Callable<E> timeable)

Executes callable code (e.g. a Java 8 Lambda) and observes a duration of how long it took to run.

Parameters:

timeable - Code that is being timed

Returns:

Result returned by callable.

observe

public void observe(double amt)

Observe the given amount.

startTimer

public Histogram.Timer startTimer()

Start a timer to track a duration.

Call Histogram.Timer.observeDuration() at the end of what you want to measure the duration of.

get

public Histogram.Child.Value get()

Get the value of the Histogram.

Warning: The definition of Histogram.Child.Value is subject to change.