Struct Triple

pub struct Triple {
    pub subject: Subject,
    pub predicate: NamedNode,
    pub object: Term,
}

Available on crate feature rdf only.

An owned RDF triple.

The default string formatter is returning an N-Triples, Turtle, and SPARQL compatible representation:

use oxrdf::{NamedNode, Triple};

assert_eq!(
    "<http://example.com/s> <http://example.com/p> <http://example.com/o>",
    Triple {
        subject: NamedNode::new("http://example.com/s")?.into(),
        predicate: NamedNode::new("http://example.com/p")?,
        object: NamedNode::new("http://example.com/o")?.into(),
    }
    .to_string()
);

Fields

subject: Subject

The subject of this triple.

predicate: NamedNode

The predicate of this triple.

object: Term

The object of this triple.

Implementations

impl Triple

pub fn new( subject: impl Into<Subject>, predicate: impl Into<NamedNode>, object: impl Into<Term>, ) -> Triple

Builds an RDF triple.

pub fn from_terms( subject: impl Into<Term>, predicate: impl Into<Term>, object: impl Into<Term>, ) -> Result<Triple, TryFromTermError>

Builds an RDF triple from Terms.

Returns a [TryFromTermError] error if the generated triple would be ill-formed.

pub fn in_graph(self, graph_name: impl Into<GraphName>) -> Quad

Encodes that this triple is in an RDF dataset.

pub fn as_ref(&self) -> TripleRef<'_>

Trait Implementations

impl Clone for Triple

fn clone(&self) -> Triple

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for Triple

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

Formats the value using the given formatter.

impl Display for Triple

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

Formats the value using the given formatter.

impl<'a> From<&'a Triple> for SubjectRef<'a>

fn from(node: &'a Triple) -> SubjectRef<'a>

Converts to this type from the input type.

impl<'a> From<&'a Triple> for TermRef<'a>

fn from(node: &'a Triple) -> TermRef<'a>

Converts to this type from the input type.

impl<'a> From<&'a Triple> for TripleRef<'a>

fn from(triple: &'a Triple) -> TripleRef<'a>

Converts to this type from the input type.

impl From<Quad> for Triple

fn from(quad: Quad) -> Triple

Converts to this type from the input type.

impl From<Triple> for Subject

fn from(node: Triple) -> Subject

Converts to this type from the input type.

impl From<Triple> for Term

fn from(triple: Triple) -> Term

Converts to this type from the input type.

impl<'a> From<TripleRef<'a>> for Triple

fn from(triple: TripleRef<'a>) -> Triple

Converts to this type from the input type.

impl FromStr for Triple

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

Parses a triple from its NTriples serialization

use oxrdf::{BlankNode, Literal, NamedNode, Triple};
use std::str::FromStr;

assert_eq!(
    Triple::from_str("_:a <http://example.com/p> \"o\" .")?,
    Triple::new(
        BlankNode::new("a")?,
        NamedNode::new("http://example.com/p")?,
        Literal::new_simple_literal("o")
    )
);

type Err = TermParseError

The associated error which can be returned from parsing.

impl Hash for Triple

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 PartialEq for Triple

fn eq(&self, other: &Triple) -> 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 Eq for Triple

impl StructuralPartialEq for Triple