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

Methods

Modifier and Type Method and Description
long applyAsLong(T value)

Applies this function to the given argument.

Methods

applyAsLong

long applyAsLong(T value)

Applies this function to the given argument.

Parameters:
value - the function argument
Returns:
the function result

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https://docs.oracle.com/javase/8/docs/api/java/util/function/ToLongFunction.html