Enum Predicate 

pub enum Predicate {
    NamedNode(NamedNode),
    Variable(Variable),
}

Union type for terms that can be predicates in RDF triples

Variants

NamedNode(NamedNode)

Variable(Variable)

Trait Implementations

impl Clone for Predicate

fn clone(&self) -> Predicate

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for Predicate

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

Formats the value using the given formatter.

impl<'de> Deserialize<'de> for Predicate

fn deserialize<__D>(__deserializer: __D) -> Result<Self, __D::Error>

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl Display for Predicate

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

Formats the value using the given formatter.

impl Eq for Predicate

impl<'a> From<&'a Predicate> for PredicateRef<'a>

fn from(predicate: &'a Predicate) -> Self

Converts to this type from the input type.

impl From<NamedNode> for Predicate

fn from(node: NamedNode) -> Self

Converts to this type from the input type.

impl From<NamedNodeRef<'_>> for Predicate

fn from(node: NamedNodeRef<'_>) -> Self

Converts to this type from the input type.

impl From<Predicate> for Object

fn from(predicate: Predicate) -> Self

Converts to this type from the input type.

impl From<Predicate> for Term

fn from(predicate: Predicate) -> Self

Converts to this type from the input type.

impl From<Variable> for Predicate

fn from(variable: Variable) -> Self

Converts to this type from the input type.

impl Hash for Predicate

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 Predicate

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

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

fn partial_cmp(&self, other: &Predicate) -> 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 PredicateTerm for Predicate

impl RdfTerm for Predicate

fn as_str(&self) -> &str

Returns the string representation of this term

fn is_named_node(&self) -> bool

Returns true if this is a named node (IRI)

fn is_variable(&self) -> bool

Returns true if this is a variable

fn is_blank_node(&self) -> bool

Returns true if this is a blank node

fn is_literal(&self) -> bool

Returns true if this is a literal

fn is_quoted_triple(&self) -> bool

Returns true if this is a quoted triple (RDF-star)

impl Serialize for Predicate

fn serialize<__S>(&self, __serializer: __S) -> Result<__S::Ok, __S::Error>

where __S: Serializer,

Serialize this value into the given Serde serializer.

impl StructuralPartialEq for Predicate

impl TryFrom<&PredicatePattern> for Predicate

type Error = ()

The type returned in the event of a conversion error.

fn try_from(pattern: &PredicatePattern) -> Result<Self, Self::Error>

Performs the conversion.

impl TryFrom<Term> for Predicate

type Error = OxirsError

The type returned in the event of a conversion error.

fn try_from(term: Term) -> Result<Self, Self::Error>

Performs the conversion.

impl ZeroCopySerialize for Predicate

fn serialize_to<W: Write>(&self, writer: &mut W) -> Result<()>

Serialize to a writer

fn serialized_size(&self) -> usize

Get the serialized size in bytes

fn serialize_to_bytes(&self, buf: &mut BytesMut)

Serialize to a byte buffer