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.
    @FunctionalInterface
public interface ToLongFunction<T>
    Represents a function that produces a long-valued result. This is the long-producing primitive specialization for Function.

    This is a functional interface whose functional method is applyAsLong(Object).

    Since:
    1.8
    See Also:
    Function

    • Method Detail

      • applyAsLong

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