Module java.base
Package java.util.function

Interface ToLongFunction<T>

Type Parameters:
T - the type of the input to the function
Functional Interface:
This is a functional interface and can therefore be used as the assignment target for a lambda expression or method reference.
@FunctionalInterfacepublic interfaceToLongFunction<T>
Represents a function that produces a long-valued result. This is thelong-producing primitive specialization forFunction.

This is afunctional interface whose functional method isapplyAsLong(Object).

Since:
1.8
See Also:

  • Method Summary

    Modifier and Type
    Method
    Description
    long
    applyAsLong(T value)
    Applies this function to the given argument.

  • Method Details

    • applyAsLong

      long applyAsLong(T value)
      Applies this function to the given argument.
      Parameters:
      value - the function argument
      Returns:
      the function result