Package io.micrometer.core.instrument

Interface TimeGauge

All Superinterfaces:

Gauge, Meter

All Known Implementing Classes:

NoopTimeGauge

public interface TimeGauge
extends Gauge

A specialized gauge that tracks a time value, to be scaled to the base unit of time expected by each registry implementation.

Nested Class Summary

Nested Classes

Modifier and Type	Interface	Description
static class	TimeGauge.Builder<T>	Fluent builder for time gauges.

Nested classes/interfaces inherited from interface io.micrometer.core.instrument.Meter

Meter.Id, Meter.Type

Method Summary

Modifier and Type	Method	Description
TimeUnit	baseTimeUnit()
static TimeGauge.Builder<Supplier<Number>>	builder(String name, Supplier<Number> f, TimeUnit fUnits)	A convenience method for building a time gauge from a supplying function, holding a strong reference to this function.
static <T> TimeGauge.Builder<T>	builder(String name, T obj, TimeUnit fUnits, ToDoubleFunction<T> f)
default double	value(TimeUnit unit)	The act of observing the value by calling this method triggers sampling of the underlying number or user-defined function that defines the value for the gauge.

Methods inherited from interface io.micrometer.core.instrument.Gauge

measure, value

Methods inherited from interface io.micrometer.core.instrument.Meter

close, getId, match, use

Method Details

builder

static <T> TimeGauge.Builder<T> builder(String name,
 @Nullable
 T obj,
 TimeUnit fUnits,
 ToDoubleFunction<T> f)

builder

@Incubating(since="1.7.0")
static TimeGauge.Builder<Supplier<Number>> builder(String name,
 Supplier<Number> f,
 TimeUnit fUnits)

A convenience method for building a time gauge from a supplying function, holding a strong reference to this function.

Parameters:

name - The time gauge's name.

f - A function that yields a double value for the time gauge.

fUnits - time unit

Returns:

A new time gauge builder.

Since:

1.7.0

baseTimeUnit

TimeUnit baseTimeUnit()

Returns:

The base time unit of the timer to which all published metrics will be scaled

value

default double value(TimeUnit unit)

The act of observing the value by calling this method triggers sampling of the underlying number or user-defined function that defines the value for the gauge.

Parameters:

unit - The base unit of time to scale the value to.

Returns:

The current value, scaled to the appropriate base unit.