org.apache.cassandra.utils

Class ExpiringMemoizingSupplier<T>

java.lang.Object

org.apache.cassandra.utils.ExpiringMemoizingSupplier<T>

All Implemented Interfaces:

java.util.function.Supplier<T>

public class ExpiringMemoizingSupplier<T>
extends java.lang.Object
implements java.util.function.Supplier<T>

An implementation similar to Guava's Suppliers.memoizeWithExpiration(Supplier) but allowing for memoization to be skipped. See CASSANDRA-16148

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
static class	ExpiringMemoizingSupplier.Memoized<T>
static class	ExpiringMemoizingSupplier.NotMemoized<T>
static class	ExpiringMemoizingSupplier.ReturnValue<T>

Method Summary

Modifier and Type	Method and Description
void	expire()
T	get()
static <T> java.util.function.Supplier<T>	memoizeWithExpiration(java.util.function.Supplier<ExpiringMemoizingSupplier.ReturnValue<T>> delegate, long duration, java.util.concurrent.TimeUnit unit)
java.lang.String	toString()

Methods inherited from class java.lang.Object

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

Method Detail

memoizeWithExpiration

public static <T> java.util.function.Supplier<T> memoizeWithExpiration(java.util.function.Supplier<ExpiringMemoizingSupplier.ReturnValue<T>> delegate,
                                                                       long duration,
                                                                       java.util.concurrent.TimeUnit unit)

get

public T get()

Specified by:

get in interface java.util.function.Supplier<T>

expire

public void expire()

toString

public java.lang.String toString()

Overrides:

toString in class java.lang.Object