Interface BiPredicate<A,B>

Type Parameters:

A - the first argument type

B - the second argument type

All Superinterfaces:

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

All Known Implementing Classes:

All, And, Any, CmpEq, Eq, GT, GTE, LT, LTE, Not, Or, Xor

Functional Interface:

This is a functional interface and can therefore be used as the assignment target for a lambda expression or method reference.

@FunctionalInterface
public interface BiPredicate<A,B>
extends Fn2<A,B,Boolean>

A specialized Fn2 that returns a Boolean when fully applied, or a Predicate when partially applied.

Method Summary

Modifier and Type	Method	Description
default BiPredicate<A,B>	and(BiPredicate<? super A, ? super B> other)	Left-to-right short-circuiting logical conjunction.
default Predicate<B>	apply(A a)	Partially apply this function by passing its first argument.
default <Z> Fn2<Z,B,Boolean>	contraMap(Fn1<? super Z, ? extends A> fn)	Contravariantly map A <- B.
default <Z> BiPredicate<Z,B>	diMapL(Fn1<? super Z, ? extends A> fn)	Contravariantly map over the argument to this function, producing a function that takes the new argument type, and produces the same result.
default <D> BiPredicate<A,B>	discardR(Applicative<D,Fn1<A,?>> appB)	Sequence both this Applicative and appB, discarding appB's result and returning this Applicative.
default BiPredicate<B,A>	flip()	Flip the order of the arguments.
static <A,B> BiPredicate<A,B>	fromBiPredicate(BiPredicate<A,B> biPredicate)	Create a BiPredicate from a java BiPredicate.
default BiPredicate<A,B>	negate()	Logical negation.
default BiPredicate<A,B>	or(BiPredicate<? super A, ? super B> other)	Left-to-right short-circuiting logical disjunction.
default BiPredicate<A,B>	toBiPredicate()	Convert this BiPredicate to a java BiPredicate.
default Predicate<? super Product2<? extends A, ? extends B>>	uncurry()	Returns an Fn1 that takes the arguments as a Product2<A, B>.

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, checkedApply, checkedApply, compose, toBiFunction, widen

Methods inherited from interface Functor

coerce

Method Details

apply

default Predicate<B> apply(A a)

Partially apply this function by passing its first argument.

Specified by:

apply in interface Fn1<A,B>

Specified by:

apply in interface Fn2<A,B,Boolean>

Parameters:

a - the first argument

Returns:

an Fn1<B, C>

flip

default BiPredicate<B,A> flip()

Flip the order of the arguments.

Specified by:

flip in interface Fn2<A,B,Boolean>

Returns:

an Fn2<B, A, C>

discardR

default <D> BiPredicate<A,B> discardR(Applicative<D,Fn1<A,?>> appB)

Sequence both this Applicative and appB, discarding appB's result and returning this Applicative. This is generally useful for sequentially performing side-effects.

Specified by:

discardR in interface Applicative<A,B>

Specified by:

discardR in interface Fn1<A,B>

Specified by:

discardR in interface Fn2<A,B,Boolean>

Specified by:

discardR in interface Monad<A,B>

Specified by:

discardR in interface MonadReader<A, Fn1<B,Boolean>, Fn1<A,?>>

Specified by:

discardR in interface MonadRec<A,B>

Specified by:

discardR in interface MonadWriter<A, Fn1<B,Boolean>, Fn1<A,?>>

Type Parameters:

D - the type of appB's parameter

Parameters:

appB - the other Applicative

Returns:

this Applicative

uncurry

default Predicate<? super Product2<? extends A, ? extends B>> uncurry()

Returns an Fn1 that takes the arguments as a Product2<A, B>.

Specified by:

uncurry in interface Fn2<A,B,Boolean>

Returns:

an Fn1 taking a Product2

diMapL

default <Z> BiPredicate<Z,B> diMapL(Fn1<? super Z, ? extends A> fn)

Contravariantly map over the argument to this function, producing a function that takes the new argument type, and produces the same result.

Specified by:

diMapL in interface Cartesian<A, Fn1<B,Boolean>, Fn1<?,?>>

Specified by:

diMapL in interface Cocartesian<A, Fn1<B,Boolean>, Fn1<?,?>>

Specified by:

diMapL in interface Fn1<A,B>

Specified by:

diMapL in interface Fn2<A,B,Boolean>

Specified by:

diMapL in interface Profunctor<A, Fn1<B,Boolean>, Fn1<?,?>>

Type Parameters:

Z - the new argument type

Parameters:

fn - the contravariant argument mapping function

Returns:

an Fn1<Z, B>

contraMap

default <Z> Fn2<Z,B,Boolean> contraMap(Fn1<? super Z, ? extends A> fn)

Contravariantly map A <- B.

Specified by:

contraMap in interface Cartesian<A, Fn1<B,Boolean>, Fn1<?,?>>

Specified by:

contraMap in interface Cocartesian<A, Fn1<B,Boolean>, Fn1<?,?>>

Specified by:

contraMap in interface Contravariant<A,B>

Specified by:

contraMap in interface Fn1<A,B>

Specified by:

contraMap in interface Fn2<A,B,Boolean>

Specified by:

contraMap in interface Profunctor<A, Fn1<B,Boolean>, Fn1<?,?>>

Type Parameters:

Z - the new parameter type

Parameters:

fn - the mapping function

Returns:

the mapped Contravariant functor instance

and

default BiPredicate<A,B> and(BiPredicate<? super A, ? super B> other)

Left-to-right short-circuiting logical conjunction.

Parameters:

other - the biPredicate to test if this one succeeds

Returns:

a biPredicate representing the conjunction of this biPredicate and other

or

default BiPredicate<A,B> or(BiPredicate<? super A, ? super B> other)

Left-to-right short-circuiting logical disjunction.

Parameters:

other - the biPredicate to test if this one fails

Returns:

a biPredicate representing the disjunction of this biPredicate and other

negate

default BiPredicate<A,B> negate()

Logical negation.

Returns:

the negation of this biPredicate

toBiPredicate

default BiPredicate<A,B> toBiPredicate()

Convert this BiPredicate to a java BiPredicate.

Returns:

BiPredicate

fromBiPredicate

static <A,B> BiPredicate<A,B> fromBiPredicate(BiPredicate<A,B> biPredicate)

Create a BiPredicate from a java BiPredicate.

Type Parameters:

A - the first input type

B - the second input type

Parameters:

biPredicate - the BiPredicate

Returns:

the BiPredicate