com.jnape.palatable.lambda.optics.prisms

Class MaybePrism

java.lang.Object

com.jnape.palatable.lambda.optics.prisms.MaybePrism

public final class MaybePrism
extends Object

Prisms for Maybe.

Method Summary

Modifier and Type	Method and Description
static <A,B> Prism<Maybe<A>,Maybe<B>,A,B>	_just() A Prism that focuses on present values in a Maybe.
static <A> Prism.Simple<Maybe<A>,Unit>	_nothing() A Prism that focuses on absent values in a Maybe, for symmetry.

Methods inherited from class java.lang.Object

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

Method Detail

_just

public static <A,B> Prism<Maybe<A>,Maybe<B>,A,B> _just()

A Prism that focuses on present values in a Maybe.

Type Parameters:

A - Maybe the input value

B - Maybe the output value

Returns:

the Prism

_nothing

public static <A> Prism.Simple<Maybe<A>,Unit> _nothing()

A Prism that focuses on absent values in a Maybe, for symmetry.

Type Parameters:

A - Maybe the input and output value

Returns:

the Prism