Class Filter<A>

java.lang.Object

com.jnape.palatable.lambda.functions.builtin.fn2.Filter<A>

Type Parameters:

A - A type contravariant to the input Iterable element type

All Implemented Interfaces:

Fn1<Fn1<? super A, ? extends Boolean>, Fn1<Iterable<A>, Iterable<A>>>, Fn2<Fn1<? super A, ? extends Boolean>, Iterable<A>, Iterable<A>>, Applicative<Fn1<Iterable<A>, Iterable<A>>, Fn1<Fn1<? super A, ? extends Boolean>, ?>>, Cartesian<Fn1<? super A, ? extends Boolean>, Fn1<Iterable<A>, Iterable<A>>, Fn1<?,?>>, Cocartesian<Fn1<? super A, ? extends Boolean>, Fn1<Iterable<A>, Iterable<A>>, Fn1<?,?>>, Contravariant<Fn1<? super A, ? extends Boolean>, Profunctor<?, Fn1<Iterable<A>, Iterable<A>>, Fn1<?,?>>>, Functor<Fn1<Iterable<A>, Iterable<A>>, Fn1<Fn1<? super A, ? extends Boolean>, ?>>, Profunctor<Fn1<? super A, ? extends Boolean>, Fn1<Iterable<A>, Iterable<A>>, Fn1<?,?>>, Monad<Fn1<Iterable<A>, Iterable<A>>, Fn1<Fn1<? super A, ? extends Boolean>, ?>>, MonadReader<Fn1<? super A, ? extends Boolean>, Fn1<Iterable<A>, Iterable<A>>, Fn1<Fn1<? super A, ? extends Boolean>, ?>>, MonadRec<Fn1<Iterable<A>, Iterable<A>>, Fn1<Fn1<? super A, ? extends Boolean>, ?>>, MonadWriter<Fn1<? super A, ? extends Boolean>, Fn1<Iterable<A>, Iterable<A>>, Fn1<Fn1<? super A, ? extends Boolean>, ?>>

public final class Filter<A>
extends Object
implements Fn2<Fn1<? super A, ? extends Boolean>, Iterable<A>, Iterable<A>>

Lazily apply a predicate to each element in an Iterable, returning an Iterable of just the elements for which the predicate evaluated to true.

See Also:

• TakeWhile
• DropWhile

Field Summary

Fields

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

Constructor Summary

Constructors

Modifier	Constructor	Description
private	Filter()

Method Summary

Modifier and Type	Method	Description
Iterable<A>	checkedApply(Fn1<? super A, ? extends Boolean> predicate, Iterable<A> as)
static <A> Filter<A>	filter()
static <A> Fn1<Iterable<A>, Iterable<A>>	filter(Fn1<? super A, ? extends Boolean> predicate)
static <A> Iterable<A>	filter(Fn1<? super A, ? extends Boolean> predicate, 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, carry, cartesian, censor, choose, cocartesian, diMap, diMapR, discardL, flatMap, fmap, lazyZip, listens, local, pure, self, thunk, toFunction, trampolineM, zip, zip

Methods inherited from interface Fn2

apply, apply, checkedApply, compose, contraMap, diMapL, discardR, flip, toBiFunction, uncurry, widen

Methods inherited from interface Functor

coerce

Field Details

INSTANCE

private static final Filter<?> INSTANCE

Constructor Details

Filter

private Filter()

Method Details

checkedApply

public Iterable<A> checkedApply(Fn1<? super A, ? extends Boolean> predicate,
 Iterable<A> as)

Specified by:

checkedApply in interface Fn2<Fn1<? super A, ? extends Boolean>, Iterable<A>, Iterable<A>>

filter

public static <A> Filter<A> filter()

filter

public static <A> Fn1<Iterable<A>, Iterable<A>> filter(Fn1<? super A, ? extends Boolean> predicate)

filter

public static <A> Iterable<A> filter(Fn1<? super A, ? extends Boolean> predicate,
 Iterable<A> as)