io.micrometer.core.instrument.internal

Class MapAccess

java.lang.Object

io.micrometer.core.instrument.internal.MapAccess

public class MapAccess
extends java.lang.Object

Constructor Summary

Constructors

Constructor and Description
MapAccess()

Method Summary

Modifier and Type	Method and Description
static <K,V,W extends V> W	computeIfAbsent(java.util.concurrent.ConcurrentMap<K,V> map, K k, java.util.function.Function<? super K,? extends W> f) This method should be used instead of the ConcurrentMap.computeIfAbsent(Object, Function) call to minimize thread contention.

Methods inherited from class java.lang.Object

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

Constructor Detail

MapAccess

public MapAccess()

Method Detail

computeIfAbsent

public static <K,V,W extends V> W computeIfAbsent(java.util.concurrent.ConcurrentMap<K,V> map,
                                                  K k,
                                                  java.util.function.Function<? super K,? extends W> f)

This method should be used instead of the ConcurrentMap.computeIfAbsent(Object, Function) call to minimize thread contention. This method does not require locking for the common case where the key exists, but potentially performs additional computation when absent.