net.emaze.dysfunctional

Class Options.Eithers

java.lang.Object

net.emaze.dysfunctional.Options.Eithers

Enclosing class:

Options

public abstract static class Options.Eithers
extends Object

pure, pures, lefts, rights.

Constructor Summary

Constructors

Constructor and Description
Eithers()

Method Summary

Modifier and Type	Method and Description
static <LT,RT> Iterator<LT>	lefts(Iterable<Either<LT,RT>> eithers) Creates an iterator yielding only left wrapped values from an iterable of Either.
static <LT,RT> Iterator<LT>	lefts(Iterator<Either<LT,RT>> eithers) Creates an iterator yielding only left wrapped values from an iterator of Either.
static <LT,RT,LR,RR> Function<Either<LT,RT>,Either<LR,RR>>	lift(Function<LT,LR> left, Function<RT,RR> right) Lifts functions working on the components of an Either<LT, RT> into a single function working on either monadic values.
static <LT,RT> Either<LT,RT>	pure(Class<LT> leftClass, RT value) Yields Either.pure() of a get.
static <LT,RT> Either<LT,RT>	pure(RT value) Yields Either.pure() of a get.
static <LT,RT> Iterator<Either<LT,RT>>	pures(Iterable<RT> values) Creates an iterator transforming values from the source iterable into pure() Either monadic values.
static <LT,RT> Iterator<Either<LT,RT>>	pures(Iterator<RT> values) Creates an iterator transforming values from the source iterator into pure() Either monadic values.
static <LT,RT> Iterator<Either<LT,RT>>	pures(RT... values) Creates an iterator transforming values from the source array into pure() Either monadic values.
static <LT,RT> Iterator<Either<LT,RT>>	pures(RT value) Creates a singleton iterator yielding pure() Either monadic get of the passed get.
static <LT,RT> Iterator<Either<LT,RT>>	pures(RT first, RT second) Creates an iterator yielding pure() Either monadic values of the passed values.
static <LT,RT> Iterator<Either<LT,RT>>	pures(RT first, RT second, RT third) Creates an iterator yielding pure() Either monadic values of the passed values.
static <LT,RT> Iterator<RT>	rights(Iterable<Either<LT,RT>> eithers) Creates an iterator yielding only right wrapped values from an iterable of Either.
static <LT,RT> Iterator<RT>	rights(Iterator<Either<LT,RT>> eithers) Creates an iterator yielding only right wrapped values from an iterator of Either.

Methods inherited from class java.lang.Object

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

Constructor Detail

Eithers

public Eithers()

Method Detail

pure

public static <LT,RT> Either<LT,RT> pure(RT value)

Yields Either.pure() of a get. (Either.right(get)) E.g: Eithers.pure(1) -> Either.right(1)

Type Parameters:

LT - the left type

RT - the right type

Parameters:

value - the get to be transformed

Returns:

the resulting either

pure

public static <LT,RT> Either<LT,RT> pure(Class<LT> leftClass,
                                         RT value)

Yields Either.pure() of a get. (Either.right(get)) E.g: Eithers.pure(1) -> Either.right(1)

Type Parameters:

LT - the left type

RT - the right type

Parameters:

leftClass - the left type (used for type inference)

value - the get to be transformed

Returns:

the resulting either

pures

public static <LT,RT> Iterator<Either<LT,RT>> pures(Iterator<RT> values)

Creates an iterator transforming values from the source iterator into pure() Either monadic values. E.g: Eithers.pures([1,2,3]) -> [Right 1, Right 2, Right 3]

Type Parameters:

LT - the left type

RT - the right type

Parameters:

values - the source iterator

Returns:

the resulting iterator

pures

public static <LT,RT> Iterator<Either<LT,RT>> pures(Iterable<RT> values)

Creates an iterator transforming values from the source iterable into pure() Either monadic values. E.g: Eithers.pures([1,2,3]) -> [Right 1, Right 2, Right 3]

Type Parameters:

LT - the left type

RT - the right type

Parameters:

values - the source iterable

Returns:

the resulting iterator

pures

public static <LT,RT> Iterator<Either<LT,RT>> pures(RT value)

Creates a singleton iterator yielding pure() Either monadic get of the passed get. E.g: Eithers.pures(1) -> [Right 1]

Type Parameters:

LT - the left type

RT - the right type

Parameters:

value - the get to be transformed

Returns:

the resulting iterator

pures

public static <LT,RT> Iterator<Either<LT,RT>> pures(RT first,
                                                    RT second)

Creates an iterator yielding pure() Either monadic values of the passed values. E.g: Eithers.pures(1, 2) -> [Right 1, Right 2]

Type Parameters:

LT - the left type

RT - the right type

Parameters:

first - the first get

second - the second get

Returns:

the resulting iterator

pures

public static <LT,RT> Iterator<Either<LT,RT>> pures(RT first,
                                                    RT second,
                                                    RT third)

Creates an iterator yielding pure() Either monadic values of the passed values. E.g: Eithers.pures(1, 2, 3) -> [Right 1, Right 2, Right 3]

Type Parameters:

LT - the left type

RT - the right type

Parameters:

first - the first get

second - the second get

third - the third get

Returns:

the resulting iterator

pures

public static <LT,RT> Iterator<Either<LT,RT>> pures(RT... values)

Creates an iterator transforming values from the source array into pure() Either monadic values. E.g: Eithers.pures([1,2,3]) -> [Right 1, Right 2, Right 3]

Type Parameters:

LT - the left type

RT - the right type

Parameters:

values - the source array

Returns:

the resulting iterator

lift

public static <LT,RT,LR,RR> Function<Either<LT,RT>,Either<LR,RR>> lift(Function<LT,LR> left,
                                                                       Function<RT,RR> right)

Lifts functions working on the components of an Either<LT, RT> into a single function working on either monadic values.

Type Parameters:

LT - the left source type

RT - the right source type

LR - the left result type

RR - the right result type

Parameters:

left - the function to apply to the left element

right - the function to apply to the right element

Returns:

the resulting function

lefts

public static <LT,RT> Iterator<LT> lefts(Iterator<Either<LT,RT>> eithers)

Creates an iterator yielding only left wrapped values from an iterator of Either. E.g: Eithers.lefts([Right 1, Left 2, Right 3, Left 4]) -> [2, 4]

Type Parameters:

LT - the left type

RT - the right type

Parameters:

eithers - the source iterator

Returns:

the resulting iterator

lefts

public static <LT,RT> Iterator<LT> lefts(Iterable<Either<LT,RT>> eithers)

Creates an iterator yielding only left wrapped values from an iterable of Either. E.g: Eithers.lefts([Right 1, Left 2, Right 3, Left 4]) -> [2, 4]

Type Parameters:

LT - the left type

RT - the right type

Parameters:

eithers - the source iterable

Returns:

the resulting iterator

rights

public static <LT,RT> Iterator<RT> rights(Iterator<Either<LT,RT>> eithers)

Creates an iterator yielding only right wrapped values from an iterator of Either. E.g: Eithers.rights([Right 1, Left 2, Right 3, Left 4]) -> [1, 3]

Type Parameters:

LT - the left type

RT - the right type

Parameters:

eithers - the source iterator

Returns:

the resulting iterator

rights

public static <LT,RT> Iterator<RT> rights(Iterable<Either<LT,RT>> eithers)

Creates an iterator yielding only right wrapped values from an iterable of Either. E.g: Eithers.rights([Right 1, Left 2, Right 3, Left 4]) -> [1, 3]

Type Parameters:

LT - the left type

RT - the right type

Parameters:

eithers - the source iterable

Returns:

the resulting iterator