Package io.earcam.unexceptional

Interface CheckedFunction<T,R,E extends Throwable>

Type Parameters:

T - argument type

R - return type

E - the type of Throwable declared

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 CheckedFunction<T,R,E extends Throwable>

A checked parallel of Function

See Also:

Function

Method Summary

Modifier and Type	Method and Description
default <V> CheckedFunction<T,V,E>	andThen(CheckedFunction<? super R,? extends V,? extends E> after) See Function.andThen(java.util.function.Function)
R	apply(T t) See Function.apply(Object)
default <V> CheckedFunction<V,R,E>	compose(CheckedFunction<? super V,? extends T,? extends E> before) See Function.compose(java.util.function.Function)
static <T,E extends Throwable> CheckedFunction<T,T,E>	identity() See Function.identity()

Method Detail

apply

R apply(T t)
 throws E extends Throwable

See Function.apply(Object)

Parameters:

t - the function argument

Returns:

the function result

Throws:

Throwable - any throwable

Since:

0.2.0

compose

default <V> CheckedFunction<V,R,E> compose(CheckedFunction<? super V,? extends T,? extends E> before)

See Function.compose(java.util.function.Function)

Type Parameters:

V - the type of input to the before function, and to the composed function

Parameters:

before - the function to apply before this function is applied

Returns:

a composed function that first applies the before function and then applies this function

Throws:

NullPointerException - if before is null

Since:

0.2.0

See Also:

Function.compose(java.util.function.Function)

andThen

default <V> CheckedFunction<T,V,E> andThen(CheckedFunction<? super R,? extends V,? extends E> after)

See Function.andThen(java.util.function.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

Since:

0.2.0

identity

static <T,E extends Throwable> CheckedFunction<T,T,E> identity()

See Function.identity()

Type Parameters:

T - argument and return type

Returns:

the argument as given

Since:

0.3.0