Package com.fa993.types.supertype

Class Either.OfTwo<A,B>

java.lang.Object

com.fa993.types.supertype.Either.OfTwo<A,B>

Type Parameters:

A - the type of the first possible value

B - the type of the second possible value

Enclosing class:

Either

public static class Either.OfTwo<A,B>
extends Object

Represents an exclusive choice between two possible types.

Constructor Summary

Constructors

Modifier	Constructor	Description
protected	OfTwo(A first, B second, Either.Selector selector)	Constructs an OfTwo object with the specified values and selector.

Method Summary

Modifier and Type	Method	Description
static <A,B> Either.OfTwo<A,B>	first(A first)	Creates an OfTwo instance with the first value selected.
A	getFirst()	Gets the first value if selected.
B	getSecond()	Gets the second value if selected.
Either.Selector	getSelector()	Gets the current selector.
static <A,B> Either.OfTwo<A,B>	second(B second)	Creates an OfTwo instance with the second value selected.

Methods inherited from class java.lang.Object

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

Constructor Detail

OfTwo

protected OfTwo(A first,
                B second,
                Either.Selector selector)

Constructs an OfTwo object with the specified values and selector.

Parameters:

first - the value of the first option

second - the value of the second option

selector - the selector indicating the current choice

Method Detail

first

public static <A,B> Either.OfTwo<A,B> first(A first)

Creates an OfTwo instance with the first value selected.

Type Parameters:

A - the type of the first value

B - the type of the second value

Parameters:

first - the value of the first option

Returns:

an OfTwo instance with the first value selected

second

public static <A,B> Either.OfTwo<A,B> second(B second)

Creates an OfTwo instance with the second value selected.

Type Parameters:

A - the type of the first value

B - the type of the second value

Parameters:

second - the value of the second option

Returns:

an OfTwo instance with the second value selected

getFirst

public A getFirst()

Gets the first value if selected.

Returns:

the first value

Throws:

IllegalStateException - if the current selection is not First

getSecond

public B getSecond()

Gets the second value if selected.

Returns:

the second value

Throws:

IllegalStateException - if the current selection is not Second

getSelector

public Either.Selector getSelector()

Gets the current selector.

Returns:

the Selector indicating the current selection