Module xyz.cofe.coll.im

Package xyz.cofe.coll.im

Class Result<VALUE,ERROR>

java.lang.Object

xyz.cofe.coll.im.Result<VALUE,ERROR>

Type Parameters:

VALUE - Результат успешного выполнения

ERROR - Результат выполнения с ошибкой

public final class Result<VALUE,ERROR>
extends Object

Контейнер для успешного выполнения функции или наличия ошибки

Method Summary

Modifier and Type	Method	Description
static <V, E> Result<V,E>	error(E e)
<V> Result<V,ERROR>	fmap(Fn1<VALUE,Result<V,ERROR>> mapper)
<R> R	fold(Function<VALUE,R> succFold, Function<ERROR,R> errFold)
Optional<ERROR>	getError()
Optional<VALUE>	getOk()
boolean	isError()
boolean	isOk()
<V> Result<V,ERROR>	map(Fn1<VALUE,V> mapper)
<E> Result<VALUE,E>	mapErr(Fn1<ERROR,E> mapper)
static <V, E> Result<V,E>	ok(V v)
static <V, E> Result<V,E>	ok(V v, Class<E> errType)
Optional<VALUE>	toOptional()
VALUE	unwrap(Fn1<ERROR,VALUE> errUnwrap)

Methods inherited from class java.lang.Object

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

Method Details

ok

public static <V,
E> Result<V,E> ok(V v)

ok

public static <V,
E> Result<V,E> ok(V v,
 Class<E> errType)

error

public static <V,
E> Result<V,E> error(E e)

getOk

public Optional<VALUE> getOk()

getError

public Optional<ERROR> getError()

isOk

public boolean isOk()

isError

public boolean isError()

unwrap

public VALUE unwrap(Fn1<ERROR,VALUE> errUnwrap)

map

public <V> Result<V,ERROR> map(Fn1<VALUE,V> mapper)

fmap

public <V> Result<V,ERROR> fmap(Fn1<VALUE,Result<V,ERROR>> mapper)

mapErr

public <E> Result<VALUE,E> mapErr(Fn1<ERROR,E> mapper)

toOptional

public Optional<VALUE> toOptional()

fold

public <R> R fold(Function<VALUE,R> succFold,
 Function<ERROR,R> errFold)