Either.Projection

All Superinterfaces:

Effect.Applicant<A>, java.lang.Iterable<A>, Maybe<A>

All Known Implementing Classes:

Either.AbstractProjection, Either.LeftProjection, Either.RightProjection

Enclosing class:

Either<L,R>
```
public static interface Either.Projection<A,B,L,R>
extends Maybe<A>
```

Method Summary

All Methods Instance Methods Abstract Methods
Modifier and Type	Method	Description
`Either<L,R>`	`either()`	The either value underlying this projection.
`A`	`on(java.util.function.Function<? super B,? extends A> f)`	The value of this projection or the result of the given function on the opposing projection's value.
`Option<? super A>`	`toOption()`	Returns this projection's value in `Some` if it exists, otherwise `None`.
`java.util.Optional<? super A>`	`toOptional()`	Returns this projection's value in `Optional.of(T)` if it exists, otherwise `Optional.empty()`.
`java.util.stream.Stream<? super A>`	`toStream()`	Returns this projection's value in `Stream.of(T)` if it exists, otherwise `Stream.empty()`.

Methods inherited from interface io.atlassian.fugue.Effect.Applicant
foreach

Methods inherited from interface java.lang.Iterable
forEach, spliterator

Methods inherited from interface io.atlassian.fugue.Maybe
contains, exists, forall, get, getOr, getOrElse, getOrElse, getOrError, getOrNull, getOrThrow, isDefined, isEmpty, iterator

- Method Detail
  - either
```
Either<L,R> either()
```
    The either value underlying this projection.
    
    Returns:
    
    The either value underlying this projection.
  - toOption
```
Option<? super A> toOption()
```
    Returns this projection's value in Some if it exists, otherwise None.
    
    Returns:
    
    This projection's value in Some if it exists, otherwise None.
  - toOptional
```
java.util.Optional<? super A> toOptional()
```
    Returns this projection's value in Optional.of(T) if it exists, otherwise Optional.empty().
    
    Returns:
    
    This projection's value in of if it exists, otherwise empty.
    
    Since:
    
    4.0
  - toStream
```
java.util.stream.Stream<? super A> toStream()
```
    Returns this projection's value in Stream.of(T) if it exists, otherwise Stream.empty().
    
    Returns:
    
    This projection's value in of if it exists, otherwise empty.
    
    Since:
    
    4.5.0
  - on
```
A on(java.util.function.Function<? super B,? extends A> f)
```
    The value of this projection or the result of the given function on the opposing projection's value.
    
    Parameters:
    
    f - The function to execute if this projection has no value.
    
    Returns:
    
    The value of this projection or the result of the given function on the opposing projection's value.