com.m3.scalaflavor4j

Class Either<L,R>

java.lang.Object

com.m3.scalaflavor4j.Either<L,R>

Direct Known Subclasses:

Left, Right

public abstract class Either<L,R>
extends Object

scala.Either (not exactly)

See Also:

"http://www.scala-lang.org/api/2.9.1/index.html#scala.Either"

Constructor Summary

Constructors

Constructor and Description
Either()

Method Summary

Methods

Modifier and Type	Method and Description
abstract boolean	isLeft() Returns true if this is a Left, false otherwise.
abstract boolean	isRight() Returns true if this is a Right, false otherwise.
abstract Option<L>	left() Projects this Either as a Left.
abstract L	mergeToLeft(Function1<R,L> rightToLeft) Returns merged value to the Left type.
abstract R	mergeToRight(Function1<L,R> leftToRight) Returns merged value to the Right type.
abstract Option<R>	right() Projects this Either as a Right.
abstract Either<R,L>	swap() If this is a Left, then return the left value in Right or vice versa.

Methods inherited from class java.lang.Object

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

Constructor Detail

Either

public Either()

Method Detail

isLeft

public abstract boolean isLeft()

Returns true if this is a Left, false otherwise.

isRight

public abstract boolean isRight()

Returns true if this is a Right, false otherwise.

left

public abstract Option<L> left()

Projects this Either as a Left. [NOTE] Different from Scala

right

public abstract Option<R> right()

Projects this Either as a Right. [NOTE] Different from Scala

swap

public abstract Either<R,L> swap()

If this is a Left, then return the left value in Right or vice versa.

mergeToRight

public abstract R mergeToRight(Function1<L,R> leftToRight)

Returns merged value to the Right type. [NOTE] Different from Scala

Parameters:

leftToRight -

Returns:

as a Right value

mergeToLeft

public abstract L mergeToLeft(Function1<R,L> rightToLeft)

Returns merged value to the Left type. [NOTE] Different from Scala

Parameters:

rightToLeft -

Returns:

as a Left value