org.clafer.collection

Class Either<A,B>

java.lang.Object

org.clafer.collection.Either<A,B>

Type Parameters:

A - the type of left

B - the type of right

Direct Known Subclasses:

Left, Right

public abstract class Either<A,B>
extends Object

A sum type. Does not allow nulls.

Author:

jimmy

Constructor Summary

Constructors

Constructor and Description
Either()

Method Summary

Methods

Modifier and Type	Method and Description
static <A,B> A[]	filterLeft(Either<A,B>[] eithers, A... array)
static <A,B> List<A>	filterLeft(List<Either<A,B>> eithers)
static <A,B> B[]	filterRight(Either<A,B>[] eithers, B... array)
static <A,B> List<B>	filterRight(List<Either<A,B>> eithers)
abstract A	getLeft()
abstract B	getRight()
abstract boolean	isLeft()
abstract boolean	isRight()
static <A,B> Either<A,B>	left(A left)
static <A,B> Either<A,B>	right(B right)

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()

getLeft

public abstract A getLeft()

isRight

public abstract boolean isRight()

getRight

public abstract B getRight()

left

public static <A,B> Either<A,B> left(A left)

right

public static <A,B> Either<A,B> right(B right)

filterLeft

public static <A,B> List<A> filterLeft(List<Either<A,B>> eithers)

filterLeft

@SafeVarargs
public static <A,B> A[] filterLeft(Either<A,B>[] eithers,
                               A... array)

filterRight

public static <A,B> List<B> filterRight(List<Either<A,B>> eithers)

filterRight

@SafeVarargs
public static <A,B> B[] filterRight(Either<A,B>[] eithers,
                                B... array)