Right<L, R> class

A concrete implementation of Either that represents the successful value (Right) in a computation.

Commonly used in functional programming to wrap a successful result, while the Left represents a failure or error.

Example usage:

Either<String, int> result = Right(42);
print(result.isRight()); // true

Inheritance

Object
Either<L, R>
Right

Available extensions

Annotations

@immutable

Constructors

Right(R value): Creates a Right instance with the given value.
const

Properties

errorOrNull → E?: Available on Either<E, T>, provided by the GmanaValueObjectResultX extension
The validation error, or null when validation succeeded.
no setter
hashCode → int: The hash code for this object.
no setteroverride
isInvalid → bool: Available on ValidationResult<TIssue, TValue>, provided by the GmanaValidationResultX extension
Whether validation failed.
no setter
isInvalid → bool: Available on Either<E, T>, provided by the GmanaValueObjectResultX extension
Whether validation failed.
no setter
issueOrNull → TIssue?: Available on ValidationResult<TIssue, TValue>, provided by the GmanaValidationResultX extension
The typed validation issue, or null when validation succeeded.
no setter
isValid → bool: Available on ValidationResult<TIssue, TValue>, provided by the GmanaValidationResultX extension
Whether validation succeeded.
no setter
isValid → bool: Available on Either<E, T>, provided by the GmanaValueObjectResultX extension
Whether validation succeeded.
no setter
runtimeType → Type: A representation of the runtime type of the object.
no setterinherited
value → R: The successful value held by this Right.
final
valueOrNull → TValue?: Available on ValidationResult<TIssue, TValue>, provided by the GmanaValidationResultX extension
The validated value, or null when validation failed.
no setter
valueOrNull → T?: Available on Either<E, T>, provided by the GmanaValueObjectResultX extension
The validated value, or null when validation failed.
no setter

Methods

all(bool test(R right)) → bool: Returns true when this is a Left or when test passes for the Right value.
inherited
bimap<L2, R2>(L2 ifLeft(L left), R2 ifRight(R right)) → Either<L2, R2>: Applies ifLeft or ifRight and returns a new Either with mapped values.
override
contains(R value) → bool: Returns true when this is a Right containing value.
inherited
exists(bool test(R right)) → bool: Returns true when this is a Right and test passes.
inherited
filterOrElse(bool test(R right), L onFalse(R right)) → Either<L, R>: Demotes a Right to a Left when test fails.
inherited
flatMap<R2>(Either<L, R2> f(R right)) → Either<L, R2>: Applies the given function f to the contained value, and flattens the result.
override
flatMapAsync<R2>(FutureOr<Either<L, R2>> f(R right)) → Future<Either<L, R2>>: Asynchronously applies f to the Right value, if present.
override
flatMapLeft<L2>(Either<L2, R> f(L left)) → Either<L2, R>: Chains on the Left side — the mirror of flatMap.
inherited
fold(B ifLeft(L left), B ifRight(R right)) → B: Applies ifRight to the contained value and returns its result.
override
foldAsync(FutureOr ifLeft(L left), FutureOr ifRight(R right)) → Future: Asynchronously applies one of two functions depending on the side present.
inherited
getLeft() → L: Throws a StateError because this is a Right and does not contain a Left value.
override
getOrDefault(R defaultValue) → R: Returns the Right value, or defaultValue when this is a Left.
inherited
getOrElse(R orElse(L left)) → R: Returns the Right value if this is a Right, otherwise computes a fallback.
inherited
getOrNull() → R?: Returns the Right value if this is a Right, otherwise null.
inherited
getRight() → R: Returns the contained value.
override
isLeft() → bool: Always returns false because this is a Right.
override
isRight() → bool: Always returns true because this is a Right.
override
leftOrNull() → L?: Returns the Left value if this is a Left, otherwise null.
override
map<R2>(R2 f(R right)) → Either<L, R2>: Transforms the contained value using the provided function f, returning a new Right.
override
mapAsync<R2>(FutureOr<R2> f(R right)) → Future<Either<L, R2>>: Asynchronously transforms the Right value using f, if present.
override
mapLeft<L2>(L2 f(L left)) → Either<L2, R>: Maps the Left value using f, if present.
override
messageOrNull([ValidationErrorMessages messages = const DefaultValidationErrorMessages()]) → String?: Available on Either<E, T>, provided by the GmanaValueObjectResultX extension
Resolves the validation error to a message, or returns null on success.
messageOrNull(ValidationMessageResolver<TIssue> resolve) → String?: Available on ValidationResult<TIssue, TValue>, provided by the GmanaValidationResultX extension
Resolves the validation issue to a message, or returns null on success.
noSuchMethod(Invocation invocation) → dynamic: Invoked when a nonexistent method or property is accessed.
inherited
orElse(Either<L, R> f(L left)) → Either<L, R>: Returns this Either when it is a Right, otherwise the result of f.
inherited
orElseWith<L2>(Either<L2, R> f(L left)) → Either<L2, R>: Like orElse but the recovery may produce a different Left type.
inherited
recover(R f(L left)) → Either<L, R>: Turns a Left into a Right by computing a fallback value.
inherited
rightOrNull() → R?: Returns the Right value if this is a Right, otherwise null.
override
swap() → Either<R, L>: Swaps the sides of this Either, turning Left into Right and vice versa.
override
tap(void f(R right)) → Either<L, R>: Runs f with the Right value, if present, and returns this Either.
inherited
tapLeft(void f(L left)) → Either<L, R>: Runs f with the Left value, if present, and returns this Either.
inherited
toEmailDomainResult() → Either<EmailError, Email>: Available on Either<EmailValidationIssue, String>, provided by the EmailValidationAdapterX extension
Converts this validation result to a domain Email result with EmailError.
toEmailValueObject() → Either<EmailValidationIssue, Email>: Available on Either<EmailValidationIssue, String>, provided by the EmailValidationAdapterX extension
Converts a successful validation into an Email value object.
toIdentifierDomainResult() → Either<IdentifierError, IdentifierValue>: Available on Either<IdentifierValidationIssue, String>, provided by the IdentifierValidationAdapterX extension
Converts this validation result to a domain IdentifierValue result with IdentifierError.
toIdentifierValueObject() → Either<IdentifierValidationIssue, IdentifierValue>: Available on Either<IdentifierValidationIssue, String>, provided by the IdentifierValidationAdapterX extension
Converts a successful validation into an IdentifierValue value object.
toList() → List<R>: A single-element list for a Right, or an empty list for a Left.
inherited
toNetworkAddressDomainResult() → Either<NetworkAddressError, NetworkAddressValue>: Available on Either<NetworkValidationIssue, String>, provided by the NetworkValidationAdapterX extension
Converts this validation result to a domain NetworkAddressValue result with NetworkAddressError.
toNetworkAddressValueObject() → Either<NetworkValidationIssue, NetworkAddressValue>: Available on Either<NetworkValidationIssue, String>, provided by the NetworkValidationAdapterX extension
Converts a successful validation into a NetworkAddressValue value object.
toNumberDomainResult() → Either<NumberError, NumberValue>: Available on Either<NumberValidationIssue, num>, provided by the NumberValidationAdapterX extension
Converts this validation result to a domain NumberValue result with NumberError.
toNumberValueObject() → Either<NumberValidationIssue, NumberValue>: Available on Either<NumberValidationIssue, num>, provided by the NumberValidationAdapterX extension
Converts a successful validation into a NumberValue value object.
toOption() → Option<R>: Discards the Left value, keeping only whether a Right was present.
inherited
toPasswordDomainResult() → Either<PasswordError, Password>: Available on Either<PasswordValidationIssue, String>, provided by the PasswordValidationAdapterX extension
Converts this validation result to a domain Password result with PasswordError.
toPasswordValueObject() → Either<PasswordValidationIssue, Password>: Available on Either<PasswordValidationIssue, String>, provided by the PasswordValidationAdapterX extension
Converts a successful validation into a Password value object.
toPhoneDomainResult() → Either<PhoneError, PhoneValue>: Available on Either<PhoneValidationIssue, String>, provided by the PhoneValidationAdapterX extension
Converts this validation result to a domain PhoneValue result with PhoneError.
toPhoneValueObject() → Either<PhoneValidationIssue, PhoneValue>: Available on Either<PhoneValidationIssue, String>, provided by the PhoneValidationAdapterX extension
Converts a successful validation into a PhoneValue value object.
toResult() → GResult<R, L>: Available on Either<L, R>, provided by the GmanaEitherToResultX extension
Converts this Either to a GResult, mapping Left to GFailure and Right to GSuccess.
toString() → String: A string representation of this object.
override
toTextDomainResult() → Either<TextError, TextValue>: Available on Either<TextValidationIssue, String>, provided by the TextValidationAdapterX extension
Converts this validation result to a domain TextValue result with TextError.
toTextValueObject() → Either<TextValidationIssue, TextValue>: Available on Either<TextValidationIssue, String>, provided by the TextValidationAdapterX extension
Converts a successful validation into a TextValue value object.
toUrlDomainResult() → Either<UrlError, UrlValue>: Available on Either<UrlValidationIssue, Uri>, provided by the UrlValidationAdapterX extension
Converts this validation result to a domain UrlValue result with UrlError.
toUrlValueObject() → Either<UrlValidationIssue, UrlValue>: Available on Either<UrlValidationIssue, Uri>, provided by the UrlValidationAdapterX extension
Converts a successful validation into an UrlValue value object.
zip<R2>(Either<L, R2> other) → Either<L, (R, R2)>: Pairs the Right values of this and other.
inherited
zipWith<R2, R3>(Either<L, R2> other, R3 combine(R first, R2 second)) → Either<L, R3>: Combines the Right values of this and other through combine.
inherited

Operators

operator ==(Object other) → bool: The equality operator.
override

Right<L, R> class

Constructors

Properties

Methods

Operators

gmana library