Package com.jnape.palatable.lambda.functions.builtin.fn2

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

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

Constructor Summary

Constructors

Modifier	Constructor	Description
private	Filter()

Method Summary

Modifier and Type	Method	Description
java.lang.Iterable<A>	checkedApply(Fn1<? super A,? extends java.lang.Boolean> predicate, java.lang.Iterable<A> as)
static <A> Filter<A>	filter()
static <A> Fn1<java.lang.Iterable<A>,java.lang.Iterable<A>>	filter(Fn1<? super A,? extends java.lang.Boolean> predicate)
static <A> java.lang.Iterable<A>	filter(Fn1<? super A,? extends java.lang.Boolean> predicate, java.lang.Iterable<A> as)

Methods inherited from class java.lang.Object

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

Methods inherited from interface com.jnape.palatable.lambda.functions.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 com.jnape.palatable.lambda.functions.Fn2

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

Methods inherited from interface com.jnape.palatable.lambda.functor.Functor

coerce

Field Detail

INSTANCE

private static final Filter<?> INSTANCE

Constructor Detail

Filter

private Filter()

Method Detail

checkedApply

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

Specified by:

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

filter

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

filter

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

filter

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