Class CallbackRegistration

java.lang.Object

io.opentelemetry.sdk.metrics.internal.state.CallbackRegistration

public final class CallbackRegistration
extends Object

A registered callback.

This class is internal and is hence not for public use. Its APIs are unstable and can change at any time.

Method Summary

Modifier and Type	Method	Description
static CallbackRegistration	create(List<SdkObservableMeasurement> observableMeasurements, Runnable runnable)	Create a callback registration.
void	invokeCallback(RegisteredReader reader, long startEpochNanos, long epochNanos)
String	toString()

Methods inherited from class Object

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

Method Details

create

public static CallbackRegistration create(List<SdkObservableMeasurement> observableMeasurements,
 Runnable runnable)

Create a callback registration.

The observableMeasurements define the set of measurements the runnable may record to. The active reader of each observableMeasurements is set via SdkObservableMeasurement.setActiveReader(RegisteredReader, long, long) before runnable is called, and set to null afterwards.

Parameters:

observableMeasurements - the measurements that the runnable may record to

runnable - the callback

Returns:

the callback registration

toString

public String toString()

Overrides:

toString in class Object

invokeCallback

public void invokeCallback(RegisteredReader reader,
 long startEpochNanos,
 long epochNanos)