Package de.xima.fc.interfaces

Interface IThrowingFunction<T,R>

Type Parameters:

T - the type of the input to the function

R - the type of the result of the function

All Superinterfaces:

Function<T,R>

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 IThrowingFunction<T,R>
extends Function<T,R>

A Supplier that may throw a checked exception.

Represents a function that accepts one argument and produces a result.

This is a functional interface whose functional method is apply(Object).

Since:

8.0.1

Author:

XIMA MEDIA GmbH

Method Summary

Modifier and Type	Method	Description
default R	apply(T t)
static <T, R> IThrowingFunction<T,R>	of(IThrowingFunction<T,R> supplier)	Returns the given supplier, for improved variable inference.
R	tryApply(T t)	Gets a result.

Methods inherited from interface java.util.function.Function

andThen, compose

Method Details

tryApply

R tryApply(T t)
    throws Exception

Gets a result.

Parameters:

t - the function argument

Returns:

the function result

Throws:

Exception - When this operation fails.

apply

default R apply(T t)

Specified by:

apply in interface Function<T,R>

of

static <T,
R> IThrowingFunction<T,R> of(IThrowingFunction<T,R> supplier)

Returns the given supplier, for improved variable inference. Sometimes you need to create local variables and assign them to a new lambda. This does not work well with variable inference, as Java cannot infer the type of an anonymous lambda. This utility method lets you write slightly more readable code like this:

 final var fn = ISerializableThrowingFunction.of(t -> ...);

 

Type Parameters:

T - the type of results supplied by this supplier

Parameters:

supplier - Supplier to return.

Returns:

The given supplier.