com.github.robtimus.io.function

Interface IOBiFunction<T,U,R>

Type Parameters:

T - The type of the first argument to the function.

U - The type of the second argument to the function.

R - The type of the result of the function.

All Known Subinterfaces:

BinaryIOOperator<T>

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 IOBiFunction<T,U,R>

Represents a function that accepts two arguments and produces a result. This is the IOException throwing equivalent of BiFunction.

Method Summary

Modifier and Type	Method and Description
default <V> IOBiFunction<T,U,V>	andThen(IOFunction<? super R,? extends V> after) Returns a composed function that first applies this function to its input, and then applies the after function to the result.
R	apply(T t, U u) Applies this function to the given arguments.
static <T,U,R> IOBiFunction<T,U,R>	checked(BiFunction<? super T,? super U,? extends R> function) Returns a function that applies the function function to its input, and unwraps any UncheckedIOException that is thrown by throwing its cause.
static <T,U,R> BiFunction<T,U,R>	unchecked(IOBiFunction<? super T,? super U,? extends R> function) Returns a function that applies the function function to its input, and wraps any IOException that is thrown in an UncheckedIOException.

Method Detail

apply

R apply(T t,
        U u)
 throws IOException

Applies this function to the given arguments.

Parameters:

t - The first function argument.

u - The second function argument.

Returns:

The function result.

Throws:

IOException - If an I/O error occurs.

andThen

default <V> IOBiFunction<T,U,V> andThen(IOFunction<? super R,? extends V> after)

Returns a composed function that first applies this function to its input, and then applies the after function to the result. If evaluation of either function throws an exception, it is relayed to the caller of the composed function.

Type Parameters:

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

Parameters:

after - The function to apply after this function is applied.

Returns:

A composed function that first applies this function and then applies the after function

Throws:

NullPointerException - If after is null.

unchecked

static <T,U,R> BiFunction<T,U,R> unchecked(IOBiFunction<? super T,? super U,? extends R> function)

Returns a function that applies the function function to its input, and wraps any IOException that is thrown in an UncheckedIOException.

Type Parameters:

T - The type of the first argument to the function.

U - The type of the second argument to the function.

R - The type of the result of the function.

Parameters:

function - The function to apply when the returned function is applied.

Returns:

A function that applies the function function to its input, and wraps any IOException that is thrown in an UncheckedIOException.

Throws:

NullPointerException - If function is null.

checked

static <T,U,R> IOBiFunction<T,U,R> checked(BiFunction<? super T,? super U,? extends R> function)

Returns a function that applies the function function to its input, and unwraps any UncheckedIOException that is thrown by throwing its cause.

Type Parameters:

T - The type of the first argument to the function.

U - The type of the second argument to the function.

R - The type of the result of the function.

Parameters:

function - The function to apply when the returned function is applied.

Returns:

A function that applies the function function to its input, and unwraps any UncheckedIOException that is thrown.

Throws:

NullPointerException - If function is null.