org.apache.activemq.artemis.utils

Class Suppliers

java.lang.Object

org.apache.activemq.artemis.utils.Suppliers

public class Suppliers
extends Object

Constructor Summary

Constructors

Constructor and Description
Suppliers()

Method Summary

Modifier and Type	Method and Description
static <T> java.util.function.Supplier<T>	memoize(java.util.function.Supplier<T> delegate) Returns a supplier which caches the instance retrieved during the first call to get() and returns that value on subsequent calls to get().

Methods inherited from class java.lang.Object

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

Constructor Detail

Suppliers

public Suppliers()

Method Detail

memoize

public static <T> java.util.function.Supplier<T> memoize(java.util.function.Supplier<T> delegate)

Returns a supplier which caches the instance retrieved during the first call to get() and returns that value on subsequent calls to get(). See: memoization

The returned supplier is thread-safe. The delegate's get() method will be invoked at most once. The supplier's serialized form does not contain the cached value, which will be recalculated when get() is called on the reserialized instance.

If delegate is an instance created by an earlier call to memoize, it is returned directly.