net.lenni0451.commons.functional.functions.throwing

Interface ThrowingFunction<O,R,T extends java.lang.Throwable>

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 ThrowingFunction<O,R,T extends java.lang.Throwable>

Method Summary

Modifier and Type	Method and Description
default <X> ThrowingFunction<X,R,T>	after(ThrowingFunction<? super X,? extends O,T> other) Executes the other function before this one.
R	apply(O o)
default <X> ThrowingFunction<O,X,T>	before(ThrowingFunction<? super R,? extends X,T> other) Executes the other function after this one.
default <X,E extends java.lang.Throwable> ThrowingFunction<X,X,E>	identity() A function that always returns the argument value.

Method Detail

apply

R apply(O o)

before

default <X> ThrowingFunction<O,X,T> before(ThrowingFunction<? super R,? extends X,T> other)

Executes the other function after this one.
a.before(b); //a is executed before b

Type Parameters:

X - The return type of the other function

Parameters:

other - The other function to execute

Returns:

The wrapper function

after

default <X> ThrowingFunction<X,R,T> after(ThrowingFunction<? super X,? extends O,T> other)

Executes the other function before this one.
a.after(b); //b is executed before a

Type Parameters:

X - The argument type of the other function

Parameters:

other - The other function to execute

Returns:

The wrapper function

identity

default <X,E extends java.lang.Throwable> ThrowingFunction<X,X,E> identity()

A function that always returns the argument value.

Type Parameters:

X - The type of the argument

E - The type of the exception

Returns:

The identity function