org.apache.commons.lang3.function

Interface FailableDoubleFunction<R,E extends Throwable>

Type Parameters:

R - Return type.

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 FailableDoubleFunction<R,E extends Throwable>

A functional interface like DoubleFunction that declares a Throwable.

Since:

3.11

Field Summary

Fields

Modifier and Type	Field and Description
static FailableDoubleFunction	NOP NOP singleton

Method Summary

Modifier and Type	Method and Description
R	apply(double input) Applies this function.
static <R,E extends Throwable> FailableDoubleFunction<R,E>	nop() Returns The NOP singleton.

Field Detail

NOP

static final FailableDoubleFunction NOP

NOP singleton

Method Detail

nop

static <R,E extends Throwable> FailableDoubleFunction<R,E> nop()

Returns The NOP singleton.

Type Parameters:

R - Return type.

E - Thrown exception.

Returns:

The NOP singleton.

apply

R apply(double input)
 throws E extends Throwable

Applies this function.

Parameters:

input - the input for the function

Returns:

the result of the function

Throws:

E - Thrown when the function fails.

E extends Throwable