Enum RdfDirection

pub enum RdfDirection {
    I18nDatatype,
    CompoundLiteral,
}

Direction representation method.

Used by the RDF serializer to decide how to encode Directions.

Variants

I18nDatatype

Encode direction in the string value type IRI using the https://www.w3.org/ns/i18n# prefix.

If a language tag is present the IRI will be of the form https://www.w3.org/ns/i18n#language_direction or simply https://www.w3.org/ns/i18n#direction otherwise where direction is either rtl or ltr.

CompoundLiteral

Encode the direction using a compound literal value.

In this case the direction tagged string is encoded with a fresh blank node identifier _:b and the following triples:

_:b http://www.w3.org/1999/02/22-rdf-syntax-ns#value value@language
_:b http://www.w3.org/1999/02/22-rdf-syntax-ns#direction direction

where direction is either rtl or ltr.

Trait Implementations

impl Clone for RdfDirection

fn clone(&self) -> RdfDirection

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for RdfDirection

fn fmt(&self, f: &mut Formatter<'_>) -> Result<(), Error>

Formats the value using the given formatter.

impl FromStr for RdfDirection

type Err = InvalidRdfDirection

The associated error which can be returned from parsing.

fn from_str(s: &str) -> Result<RdfDirection, <RdfDirection as FromStr>::Err>

Parses a string s to return a value of this type.

impl Hash for RdfDirection

fn hash<__H>(&self, state: &mut __H)

where __H: Hasher,

Feeds this value into the given Hasher.

fn hash_slice<H>(data: &[Self], state: &mut H)

where H: Hasher, Self: Sized,

Feeds a slice of this type into the given Hasher.

impl Ord for RdfDirection

fn cmp(&self, other: &RdfDirection) -> Ordering

This method returns an Ordering between self and other.

fn max(self, other: Self) -> Self

where Self: Sized,

Compares and returns the maximum of two values.

fn min(self, other: Self) -> Self

where Self: Sized,

Compares and returns the minimum of two values.

fn clamp(self, min: Self, max: Self) -> Self

where Self: Sized,

Restrict a value to a certain interval.

impl PartialEq for RdfDirection

fn eq(&self, other: &RdfDirection) -> bool

Tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &Rhs) -> bool

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl PartialOrd for RdfDirection

fn partial_cmp(&self, other: &RdfDirection) -> Option<Ordering>

This method returns an ordering between self and other values if one exists.

fn lt(&self, other: &Rhs) -> bool

Tests less than (for self and other) and is used by the < operator.

fn le(&self, other: &Rhs) -> bool

Tests less than or equal to (for self and other) and is used by the <= operator.

fn gt(&self, other: &Rhs) -> bool

Tests greater than (for self and other) and is used by the > operator.

fn ge(&self, other: &Rhs) -> bool

Tests greater than or equal to (for self and other) and is used by the >= operator.

impl<'a> TryFrom<&'a str> for RdfDirection

type Error = InvalidRdfDirection

The type returned in the event of a conversion error.

fn try_from( value: &'a str, ) -> Result<RdfDirection, <RdfDirection as TryFrom<&'a str>>::Error>

Performs the conversion.

impl Copy for RdfDirection

impl Eq for RdfDirection

impl StructuralPartialEq for RdfDirection