org.apache.commons.lang3.function

Interface FailableToLongFunction<T,E extends Throwable>

Type Parameters:

T - the type of the first argument to the function

E - Thrown exception.

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 FailableToLongFunction<T,E extends Throwable>

A functional interface like ToLongFunction that declares a Throwable.

Since:

3.11

Field Summary

Fields

Modifier and Type	Field and Description
static FailableToLongFunction	NOP NOP singleton

Method Summary

Modifier and Type	Method and Description
long	applyAsLong(T t) Applies this function to the given arguments.
static <T,E extends Throwable> FailableToLongFunction<T,E>	nop() Returns The NOP singleton.

Field Detail

NOP

static final FailableToLongFunction NOP

NOP singleton

Method Detail

nop

static <T,E extends Throwable> FailableToLongFunction<T,E> nop()

Returns The NOP singleton.

Type Parameters:

T - the type of the argument to the function

E - Thrown exception.

Returns:

The NOP singleton.

applyAsLong

long applyAsLong(T t)
          throws E extends Throwable

Applies this function to the given arguments.

Parameters:

t - the first function argument

Returns:

the function result

Throws:

E - Thrown when the function fails.

E extends Throwable