Package io.opentelemetry.api.metrics

Interface AsynchronousInstrument

All Superinterfaces:

Instrument

All Known Subinterfaces:

DoubleSumObserver, DoubleUpDownSumObserver, DoubleValueObserver, LongSumObserver, LongUpDownSumObserver, LongValueObserver

@ThreadSafe
public interface AsynchronousInstrument
extends Instrument

AsynchronousInstrument is an interface that defines a type of instruments that are used to report measurements asynchronously.

They are reported by a callback, once per collection interval, and lack Context. They are permitted to report only one value per distinct label set per period. If the application observes multiple values for the same label set, in a single callback, the last value is the only value kept.

Nested Class Summary

Nested Classes

Modifier and Type	Interface	Description
static interface	AsynchronousInstrument.DoubleResult	The result pass to the updater.
static interface	AsynchronousInstrument.LongResult	The result pass to the updater.