Uses of Interface
io.vavr.control.Validation

Packages that use Validation

Package	Description
io.vavr	Beside API the io.vavr package contains core types like (Checked)Functions and Tuples.
io.vavr.control	Control structures like the disjoint union type Either, the optional value type Option and Try for exception handling.

Uses of Validation in io.vavr

Methods in io.vavr that return Validation

Modifier and Type	Method	Description
default <U> Validation<T,U>	Value.toInvalid(Supplier<? extends U> valueSupplier)	Deprecated. Use Value.toValidation(Supplier) instead.
default <U> Validation<T,U>	Value.toInvalid(U value)	Deprecated. Use Value.toValidation(Object) instead.
default <E> Validation<E,T>	Value.toValid(E error)	Deprecated. Use Value.toValidation(Object) instead.
default <E> Validation<E,T>	Value.toValid(Supplier<? extends E> errorSupplier)	Deprecated. Use Value.toValidation(Supplier) instead.
default <E> Validation<E,T>	Value.toValidation(E invalid)	Converts this to an Validation.
default <E> Validation<E,T>	Value.toValidation(Supplier<? extends E> invalidSupplier)	Converts this to an Validation.

Uses of Validation in io.vavr.control

Classes in io.vavr.control that implement Validation

Modifier and Type	Class	Description
static final class	Validation.Invalid<E,T>	An invalid Validation
static final class	Validation.Valid<E,T>	A valid Validation

Fields in io.vavr.control declared as Validation

Modifier and Type	Field	Description
private Validation<E,T1>	Validation.Builder.v1
private Validation<E,T1>	Validation.Builder3.v1
private Validation<E,T1>	Validation.Builder4.v1
private Validation<E,T1>	Validation.Builder5.v1
private Validation<E,T1>	Validation.Builder6.v1
private Validation<E,T1>	Validation.Builder7.v1
private Validation<E,T1>	Validation.Builder8.v1
private Validation<E,T2>	Validation.Builder.v2
private Validation<E,T2>	Validation.Builder3.v2
private Validation<E,T2>	Validation.Builder4.v2
private Validation<E,T2>	Validation.Builder5.v2
private Validation<E,T2>	Validation.Builder6.v2
private Validation<E,T2>	Validation.Builder7.v2
private Validation<E,T2>	Validation.Builder8.v2
private Validation<E,T3>	Validation.Builder3.v3
private Validation<E,T3>	Validation.Builder4.v3
private Validation<E,T3>	Validation.Builder5.v3
private Validation<E,T3>	Validation.Builder6.v3
private Validation<E,T3>	Validation.Builder7.v3
private Validation<E,T3>	Validation.Builder8.v3
private Validation<E,T4>	Validation.Builder4.v4
private Validation<E,T4>	Validation.Builder5.v4
private Validation<E,T4>	Validation.Builder6.v4
private Validation<E,T4>	Validation.Builder7.v4
private Validation<E,T4>	Validation.Builder8.v4
private Validation<E,T5>	Validation.Builder5.v5
private Validation<E,T5>	Validation.Builder6.v5
private Validation<E,T5>	Validation.Builder7.v5
private Validation<E,T5>	Validation.Builder8.v5
private Validation<E,T6>	Validation.Builder6.v6
private Validation<E,T6>	Validation.Builder7.v6
private Validation<E,T6>	Validation.Builder8.v6
private Validation<E,T7>	Validation.Builder7.v7
private Validation<E,T7>	Validation.Builder8.v7
private Validation<E,T8>	Validation.Builder8.v8

Methods in io.vavr.control that return Validation

Modifier and Type	Method	Description
default <U> Validation<Seq<E>,U>	Validation.ap(Validation<Seq<E>, ? extends Function<? super T, ? extends U>> validation)
<R> Validation<Seq<E>,R>	Validation.Builder.ap(Function2<T1,T2,R> f)
<R> Validation<Seq<E>,R>	Validation.Builder3.ap(Function3<T1,T2,T3,R> f)
<R> Validation<Seq<E>,R>	Validation.Builder4.ap(Function4<T1,T2,T3,T4,R> f)
<R> Validation<Seq<E>,R>	Validation.Builder5.ap(Function5<T1,T2,T3,T4,T5,R> f)
<R> Validation<Seq<E>,R>	Validation.Builder6.ap(Function6<T1,T2,T3,T4,T5,T6,R> f)
<R> Validation<Seq<E>,R>	Validation.Builder7.ap(Function7<T1,T2,T3,T4,T5,T6,T7,R> f)
<R> Validation<Seq<E>,R>	Validation.Builder8.ap(Function8<T1,T2,T3,T4,T5,T6,T7,T8,R> f)
default <E2,T2> Validation<E2,T2>	Validation.bimap(Function<? super E, ? extends E2> errorMapper, Function<? super T, ? extends T2> valueMapper)	Whereas map only performs a mapping on a valid Validation, and mapError performs a mapping on an invalid Validation, bimap allows you to provide mapping actions for both, and will give you the result based on what type of Validation this is.
default <U> Validation<E,U>	Validation.flatMap(Function<? super T, ? extends Validation<E, ? extends U>> mapper)
static <E,T> Validation<E,T>	Validation.fromEither(Either<E,T> either)	Creates a Validation of an Either.
static <T> Validation<Throwable, T>	Validation.fromTry(Try<? extends T> t)	Creates a Validation of an Try.
static <E,T> Validation<E,T>	Validation.invalid(E error)	Creates an Validation.Invalid that contains the given error.
default <U> Validation<E,U>	Validation.map(Function<? super T, ? extends U> f)
default <U> Validation<U,T>	Validation.mapError(Function<? super E, ? extends U> f)	Applies a function f to the error of this Validation if this is an Invalid.
static <E,T> Validation<E,T>	Validation.narrow(Validation<? extends E, ? extends T> validation)	Narrows a widened Validation<? extends E, ? extends T> to Validation<E, T> by performing a type-safe cast.
default Validation<E,T>	Validation.orElse(Validation<? extends E, ? extends T> other)	Returns this Validation if it is valid, otherwise return the alternative.
default Validation<E,T>	Validation.orElse(Supplier<Validation<? extends E, ? extends T>> supplier)	Returns this Validation if it is valid, otherwise return the result of evaluating supplier.
default Validation<E,T>	Validation.peek(Consumer<? super T> action)
static <E,T> Validation<Seq<E>,Seq<T>>	Validation.sequence(Iterable<? extends Validation<? extends Seq<? extends E>, ? extends T>> values)	Reduces many Validation instances into a single Validation by transforming an Iterable<Validation<? extends T>> into a Validation<Seq<T>>.
default Validation<T,E>	Validation.swap()	Flip the valid/invalid values for this Validation.
default Validation<L,R>	Either.toValidation()	Returns this as Validation.
default Validation<Throwable, T>	Try.toValidation()	Converts this Try to a Validation.
default <U> Validation<U,T>	Try.toValidation(Function<? super Throwable, ? extends U> throwableMapper)	Converts this Try to a Validation, converting the Throwable (if present) to another object using passed Function.
static <E,T,U> Validation<Seq<E>,Seq<U>>	Validation.traverse(Iterable<? extends T> values, Function<? super T, ? extends Validation<? extends Seq<? extends E>, ? extends U>> mapper)	Maps the values of an iterable to a sequence of mapped values into a single Validation by transforming an Iterable<? extends T> into a Validation<Seq<U>>.
static <E,T> Validation<E,T>	Validation.valid(T value)	Creates a Validation.Valid that contains the given value.

Methods in io.vavr.control that return types with arguments of type Validation

Modifier and Type	Method	Description
default Option<Validation<E,T>>	Validation.filter(Predicate<? super T> predicate)

Methods in io.vavr.control with parameters of type Validation

Modifier and Type	Method	Description
default <U> Validation<Seq<E>,U>	Validation.ap(Validation<Seq<E>, ? extends Function<? super T, ? extends U>> validation)
<T3> Validation.Builder3<E,T1,T2,T3>	Validation.Builder.combine(Validation<E,T3> v3)
<T4> Validation.Builder4<E,T1,T2,T3,T4>	Validation.Builder3.combine(Validation<E,T4> v4)
<T5> Validation.Builder5<E,T1,T2,T3,T4,T5>	Validation.Builder4.combine(Validation<E,T5> v5)
<T6> Validation.Builder6<E,T1,T2,T3,T4,T5,T6>	Validation.Builder5.combine(Validation<E,T6> v6)
<T7> Validation.Builder7<E,T1,T2,T3,T4,T5,T6,T7>	Validation.Builder6.combine(Validation<E,T7> v7)
<T8> Validation.Builder8<E,T1,T2,T3,T4,T5,T6,T7,T8>	Validation.Builder7.combine(Validation<E,T8> v8)
static <E,T1,T2> Validation.Builder<E,T1,T2>	Validation.combine(Validation<E,T1> validation1, Validation<E,T2> validation2)	Combines two Validations into a Validation.Builder.
static <E,T1,T2,T3> Validation.Builder3<E,T1,T2,T3>	Validation.combine(Validation<E,T1> validation1, Validation<E,T2> validation2, Validation<E,T3> validation3)	Combines three Validations into a Validation.Builder3.
static <E,T1,T2,T3,T4> Validation.Builder4<E,T1,T2,T3,T4>	Validation.combine(Validation<E,T1> validation1, Validation<E,T2> validation2, Validation<E,T3> validation3, Validation<E,T4> validation4)	Combines four Validations into a Validation.Builder4.
static <E,T1,T2,T3,T4,T5> Validation.Builder5<E,T1,T2,T3,T4,T5>	Validation.combine(Validation<E,T1> validation1, Validation<E,T2> validation2, Validation<E,T3> validation3, Validation<E,T4> validation4, Validation<E,T5> validation5)	Combines five Validations into a Validation.Builder5.
static <E,T1,T2,T3,T4,T5,T6> Validation.Builder6<E,T1,T2,T3,T4,T5,T6>	Validation.combine(Validation<E,T1> validation1, Validation<E,T2> validation2, Validation<E,T3> validation3, Validation<E,T4> validation4, Validation<E,T5> validation5, Validation<E,T6> validation6)	Combines six Validations into a Validation.Builder6.
static <E,T1,T2,T3,T4,T5,T6,T7> Validation.Builder7<E,T1,T2,T3,T4,T5,T6,T7>	Validation.combine(Validation<E,T1> validation1, Validation<E,T2> validation2, Validation<E,T3> validation3, Validation<E,T4> validation4, Validation<E,T5> validation5, Validation<E,T6> validation6, Validation<E,T7> validation7)	Combines seven Validations into a Validation.Builder7.
static <E,T1,T2,T3,T4,T5,T6,T7,T8> Validation.Builder8<E,T1,T2,T3,T4,T5,T6,T7,T8>	Validation.combine(Validation<E,T1> validation1, Validation<E,T2> validation2, Validation<E,T3> validation3, Validation<E,T4> validation4, Validation<E,T5> validation5, Validation<E,T6> validation6, Validation<E,T7> validation7, Validation<E,T8> validation8)	Combines eight Validations into a Validation.Builder8.
default <U> Validation.Builder<E,T,U>	Validation.combine(Validation<E,U> validation)	Combines two Validations to form a Validation.Builder, which can then be used to perform further combines, or apply a function to it in order to transform the Validation.Builder into a Validation.
static <E,T> Validation<E,T>	Validation.narrow(Validation<? extends E, ? extends T> validation)	Narrows a widened Validation<? extends E, ? extends T> to Validation<E, T> by performing a type-safe cast.
default Validation<E,T>	Validation.orElse(Validation<? extends E, ? extends T> other)	Returns this Validation if it is valid, otherwise return the alternative.

Method parameters in io.vavr.control with type arguments of type Validation

Modifier and Type	Method	Description
default <U> Validation<E,U>	Validation.flatMap(Function<? super T, ? extends Validation<E, ? extends U>> mapper)
default Validation<E,T>	Validation.orElse(Supplier<Validation<? extends E, ? extends T>> supplier)	Returns this Validation if it is valid, otherwise return the result of evaluating supplier.
static <E,T> Validation<Seq<E>,Seq<T>>	Validation.sequence(Iterable<? extends Validation<? extends Seq<? extends E>, ? extends T>> values)	Reduces many Validation instances into a single Validation by transforming an Iterable<Validation<? extends T>> into a Validation<Seq<T>>.
static <E,T,U> Validation<Seq<E>,Seq<U>>	Validation.traverse(Iterable<? extends T> values, Function<? super T, ? extends Validation<? extends Seq<? extends E>, ? extends U>> mapper)	Maps the values of an iterable to a sequence of mapped values into a single Validation by transforming an Iterable<? extends T> into a Validation<Seq<U>>.

Constructors in io.vavr.control with parameters of type Validation

Modifier	Constructor	Description
private	Builder(Validation<E,T1> v1, Validation<E,T2> v2)
private	Builder3(Validation<E,T1> v1, Validation<E,T2> v2, Validation<E,T3> v3)
private	Builder4(Validation<E,T1> v1, Validation<E,T2> v2, Validation<E,T3> v3, Validation<E,T4> v4)
private	Builder5(Validation<E,T1> v1, Validation<E,T2> v2, Validation<E,T3> v3, Validation<E,T4> v4, Validation<E,T5> v5)
private	Builder6(Validation<E,T1> v1, Validation<E,T2> v2, Validation<E,T3> v3, Validation<E,T4> v4, Validation<E,T5> v5, Validation<E,T6> v6)
private	Builder7(Validation<E,T1> v1, Validation<E,T2> v2, Validation<E,T3> v3, Validation<E,T4> v4, Validation<E,T5> v5, Validation<E,T6> v6, Validation<E,T7> v7)
private	Builder8(Validation<E,T1> v1, Validation<E,T2> v2, Validation<E,T3> v3, Validation<E,T4> v4, Validation<E,T5> v5, Validation<E,T6> v6, Validation<E,T7> v7, Validation<E,T8> v8)