Enum EncodingName 

pub enum EncodingName {
    ObjectId,
    PlainTerm,
    TypedValue,
    Sortable,
}

Represents the name of a single TermEncoding.

RDF Fusion allows users to define multiple encodings for RDF terms. This allows specializing the Arrow arrays used for holding the results of queries.

Order

The order defined over the EncodingName defines how much information they preserve.

• Self::ObjectId and Self::PlainTerm preserve the entire information.
• Self::TypedValue preserves the value of the term, but not their lexical form.
• Self::Sortable can loose information (e.g., precision in numerics)

Variants

ObjectId

Name of the ObjectIdEncoding. Represents all terms, including literals, as a unique identifier.

PlainTerm

Name of the PlainTermEncoding. Represents all terms, including literals, using their lexical value.

TypedValue

Name of the TypedValueEncoding. Represents IRIs and blank nodes using their lexical value and literals as their typed value.

Sortable

Name of the SortableTermEncoding which is used for sorting. We plan to remove this encoding in the future, once we can introduce custom orderings into the query engine.

Trait Implementations

impl Clone for EncodingName

fn clone(&self) -> EncodingName

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for EncodingName

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

Formats the value using the given formatter.

impl Hash for EncodingName

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

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 EncodingName

fn cmp(&self, other: &EncodingName) -> 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 EncodingName

fn eq(&self, other: &EncodingName) -> 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 EncodingName

fn partial_cmp(&self, other: &EncodingName) -> 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 Copy for EncodingName

impl Eq for EncodingName

impl StructuralPartialEq for EncodingName