# Uses of Interface
org.apache.commons.lang3.function.FailableLongFunction

Packages that use FailableLongFunction
Package
Description
org.apache.commons.lang3.function
Provides functional interfaces to complement those in `java.lang.function` and utilities for working with Java 8 lambdas.

- ## Uses of FailableLongFunction in org.apache.commons.lang3.function

  Fields in org.apache.commons.lang3.function declared as FailableLongFunction
  Modifier and Type
  Field
  Description
  `static final FailableLongFunction`
  FailableLongFunction.`NOP`
  NOP singleton
  Methods in org.apache.commons.lang3.function that return FailableLongFunction
  Modifier and Type
  Method
  Description
  `static <R, E extends Throwable>
  FailableLongFunction<R,E>`
  FailableLongFunction.`nop()`
  Returns The NOP singleton.