Package io.helidon.microprofile.metrics

Class DelegatingGauge<T>

java.lang.Object

io.helidon.microprofile.metrics.DelegatingGauge<T>

Type Parameters:

T - data type reported by the underlying Gauge

All Implemented Interfaces:

Gauge<T>, Metric

public class DelegatingGauge<T>
extends Object
implements Gauge<T>

Implementation of Gauge for cataloging in the metrics registry that delegates its getValue() method invocations to a discovered bean method annotated with @Gauge.

Method Summary

Modifier and Type	Method and Description
T	getValue()
static <S> DelegatingGauge<S>	newInstance(Method method, Object obj, Class<S> clazz) Creates a new DelegatingGauge which will defer to the specified method on the object to retrieve the gauge of interest of the indicated type.

Methods inherited from class java.lang.Object

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

Method Detail

newInstance

public static <S> DelegatingGauge<S> newInstance(Method method,
                                                 Object obj,
                                                 Class<S> clazz)

Creates a new DelegatingGauge which will defer to the specified method on the object to retrieve the gauge of interest of the indicated type.

Type Parameters:

S - type of the underlying gauge

Parameters:

method - value-reporting method to be invoked to retrieve the gauge value

obj - bean instance from which to retrieve the gauge value

clazz - type of the underlying gauge

Returns:

DelegatingGauge

getValue

public T getValue()

Specified by:

getValue in interface Gauge<T>