org.apache.commons.lang3.function

Interface FailableBiFunction<T,U,R,E extends Throwable>

Type Parameters:

T - Input type 1.

U - Input type 2.

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 FailableBiFunction<T,U,R,E extends Throwable>

A functional interface like BiFunction that declares a Throwable.

Since:

3.11

Field Summary

Fields

Modifier and Type	Field and Description
static FailableBiFunction	NOP NOP singleton

Method Summary

Modifier and Type	Method and Description
default <V> FailableBiFunction<T,U,V,E>	andThen(FailableFunction<? super R,? extends V,E> after) Returns a composed FailableBiFunction that like BiFunction.andThen(Function).
R	apply(T input1, U input2) Applies this function.
static <T,U,R,E extends Throwable> FailableBiFunction<T,U,R,E>	nop() Returns The NOP singleton.

Field Detail

NOP

static final FailableBiFunction NOP

NOP singleton

Method Detail

nop

static <T,U,R,E extends Throwable> FailableBiFunction<T,U,R,E> nop()

Returns The NOP singleton.

Type Parameters:

T - Consumed type 1.

U - Consumed type 2.

R - Return type.

E - Thrown exception.

Returns:

The NOP singleton.

andThen

default <V> FailableBiFunction<T,U,V,E> andThen(FailableFunction<? super R,? extends V,E> after)

Returns a composed FailableBiFunction that like BiFunction.andThen(Function).

Type Parameters:

V - the output type of the after function, and of the composed function.

Parameters:

after - the operation to perform after this one.

Returns:

a composed FailableBiFunction that like BiFunction.andThen(Function).

Throws:

NullPointerException - when after is null.

apply

R apply(T input1,
        U input2)
 throws E extends Throwable

Applies this function.

Parameters:

input1 - the first input for the function

input2 - the second input for the function

Returns:

the result of the function

Throws:

E - Thrown when the function fails.

E extends Throwable