com.atlassian.fugue

Interface Either.Projection<A,B,L,R>

All Superinterfaces:

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

All Known Implementing Classes:

Either.LeftProjection, Either.RightProjection

Enclosing class:

Either<L,R>

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

Method Summary

Methods

Modifier and Type	Method and Description
Either<L,R>	either() The either value underlying this projection.
A	on(com.google.common.base.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.

Methods inherited from interface com.atlassian.fugue.Maybe

exists, forall, get, getOrElse, getOrElse, getOrError, getOrNull, getOrThrow, isDefined, isEmpty, iterator

Methods inherited from interface com.atlassian.fugue.Effect.Applicant

foreach

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.

on

A on(com.google.common.base.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.