de.flapdoodle.types

Class Maybe<T>

java.lang.Object

de.flapdoodle.types.Maybe<T>

Direct Known Subclasses:

Maybe.None, Maybe.Some

public abstract class Maybe<T>
extends Object

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
static class	Maybe.None<T>
static class	Maybe.Some<T>

Constructor Summary

Constructors

Constructor and Description
Maybe()

Method Summary

Modifier and Type	Method and Description
abstract T	get()
T	getOrThrow(IllegalArgumentException e)
abstract boolean	hasSome()
abstract <R> Maybe<R>	map(Function<T,R> mapping)
static <T> Maybe.None<T>	none()
static <T> Maybe.Some<T>	some(T value)

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

Maybe

public Maybe()

Method Detail

hasSome

public abstract boolean hasSome()

get

@Nullable
public abstract T get()

map

public abstract <R> Maybe<R> map(Function<T,R> mapping)

getOrThrow

public T getOrThrow(IllegalArgumentException e)

none

public static <T> Maybe.None<T> none()

some

public static <T> Maybe.Some<T> some(@Nullable
                                     T value)