Package com.github.tonivade.purefun.core

Interface Producer<T>

Type Parameters:

T - the returned type

All Superinterfaces:

Kind<Producer<?>,T>, ProducerOf<T>, Recoverable

All Known Implementing Classes:

MemoizedProducer

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 non-sealed interface Producer<T>
extends ProducerOf<T>, Recoverable

This interface represents a function without any parameter. Similar to Supplier but with additional functionality like the ability to memoize the result.

Method Summary

Modifier and Type	Method	Description
default <R> Producer<R>	andThen(Function1<? super T,? extends R> after)
default <V> Function1<V,T>	asFunction()
static <T> Producer<T>	cons(T value)
static <A, X extends Throwable> Producer<A>	failure(Producer<? extends X> supplier)
default <R> Producer<R>	flatMap(Function1<? super T,? extends Producer<? extends R>> after)
default T	get()
default Producer<Either<Throwable,T>>	liftEither()
default Producer<Option<T>>	liftOption()
default Producer<Try<T>>	liftTry()
default <R> Producer<R>	map(Function1<? super T,? extends R> after)
default Producer<T>	memoized()
static <T> Producer<T>	of(Producer<? extends T> reference)
T	run()

Methods inherited from interface com.github.tonivade.purefun.Kind

fix, kind

Methods inherited from interface com.github.tonivade.purefun.core.Recoverable

sneakyThrow

Method Details

get

default T get()

run

T run()
throws Throwable

Throws:

Throwable

asFunction

default <V> Function1<V,T> asFunction()

andThen

default <R> Producer<R> andThen(Function1<? super T,? extends R> after)

map

default <R> Producer<R> map(Function1<? super T,? extends R> after)

flatMap

default <R> Producer<R> flatMap(Function1<? super T,? extends Producer<? extends R>> after)

liftOption

default Producer<Option<T>> liftOption()

liftTry

default Producer<Try<T>> liftTry()

liftEither

default Producer<Either<Throwable,T>> liftEither()

memoized

default Producer<T> memoized()

cons

static <T> Producer<T> cons(T value)

failure

static <A,
X extends Throwable> Producer<A> failure(Producer<? extends X> supplier)

of

static <T> Producer<T> of(Producer<? extends T> reference)