Class Empty<A>

java.lang.Object

com.jnape.palatable.lambda.functions.builtin.fn1.Empty<A>

Type Parameters:

A - the iterable element type

All Implemented Interfaces:

Fn1<Iterable<A>, Boolean>, Predicate<Iterable<A>>, Applicative<Boolean, Fn1<Iterable<A>, ?>>, Cartesian<Iterable<A>, Boolean, Fn1<?,?>>, Cocartesian<Iterable<A>, Boolean, Fn1<?,?>>, Contravariant<Iterable<A>, Profunctor<?,Boolean,Fn1<?,?>>>, Functor<Boolean, Fn1<Iterable<A>, ?>>, Profunctor<Iterable<A>, Boolean, Fn1<?,?>>, Monad<Boolean, Fn1<Iterable<A>, ?>>, MonadReader<Iterable<A>, Boolean, Fn1<Iterable<A>, ?>>, MonadRec<Boolean, Fn1<Iterable<A>, ?>>, MonadWriter<Iterable<A>, Boolean, Fn1<Iterable<A>, ?>>

public final class Empty<A>
extends Object
implements Predicate<Iterable<A>>

A predicate that returns true if as is empty; false otherwise.

Field Summary

Fields

Modifier and Type	Field	Description
private static final Empty<?>	INSTANCE

Constructor Summary

Constructors

Modifier	Constructor	Description
private	Empty()

Method Summary

Modifier and Type	Method	Description
Boolean	checkedApply(Iterable<A> as)	Invoke this function with the given argument, potentially throwing any Throwable.
static <A> Empty<A>	empty()
static <A> Boolean	empty(Iterable<A> as)

Methods inherited from class Object

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

Methods inherited from interface Fn1

andThen, apply, carry, cartesian, censor, choose, cocartesian, diMap, diMapR, discardL, flatMap, fmap, lazyZip, listens, local, pure, self, thunk, toFunction, trampolineM, zip, zip

Methods inherited from interface Functor

coerce

Methods inherited from interface Predicate

and, compose, contraMap, diMapL, discardR, negate, or, toPredicate, widen

Field Details

INSTANCE

private static final Empty<?> INSTANCE

Constructor Details

Empty

private Empty()

Method Details

checkedApply

public Boolean checkedApply(Iterable<A> as)

Description copied from interface: Fn1

Invoke this function with the given argument, potentially throwing any Throwable.

Specified by:

checkedApply in interface Fn1<Iterable<A>, Boolean>

Parameters:

as - the argument

Returns:

the result of the function application

empty

public static <A> Empty<A> empty()

empty

public static <A> Boolean empty(Iterable<A> as)