oxigraph::model

Struct Triple

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

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§

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impl Triple

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

Builds an RDF triple.

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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.

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

Encodes that this triple is in an RDF dataset.

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

Trait Implementations§

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impl Clone for Triple

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fn clone(&self) -> Triple

Returns a copy of the value. Read more
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fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source. Read more
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impl Debug for Triple

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

Formats the value using the given formatter. Read more
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impl Display for Triple

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

Formats the value using the given formatter. Read more
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impl Extend<Triple> for Graph

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fn extend<I>(&mut self, iter: I)
where I: IntoIterator<Item = Triple>,

Extends a collection with the contents of an iterator. Read more
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fn extend_one(&mut self, item: A)

🔬This is a nightly-only experimental API. (extend_one)
Extends a collection with exactly one element.
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fn extend_reserve(&mut self, additional: usize)

🔬This is a nightly-only experimental API. (extend_one)
Reserves capacity in a collection for the given number of additional elements. Read more
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impl Extend<Triple> for GraphViewMut<'_>

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fn extend<I>(&mut self, iter: I)
where I: IntoIterator<Item = Triple>,

Extends a collection with the contents of an iterator. Read more
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fn extend_one(&mut self, item: A)

🔬This is a nightly-only experimental API. (extend_one)
Extends a collection with exactly one element.
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fn extend_reserve(&mut self, additional: usize)

🔬This is a nightly-only experimental API. (extend_one)
Reserves capacity in a collection for the given number of additional elements. Read more
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impl<'a> From<&'a Triple> for SubjectRef<'a>

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

Converts to this type from the input type.
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impl<'a> From<&'a Triple> for TermRef<'a>

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

Converts to this type from the input type.
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impl<'a> From<&'a Triple> for TripleRef<'a>

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

Converts to this type from the input type.
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impl From<Quad> for Triple

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fn from(quad: Quad) -> Triple

Converts to this type from the input type.
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impl From<Triple> for Subject

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fn from(node: Triple) -> Subject

Converts to this type from the input type.
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impl From<Triple> for Term

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fn from(triple: Triple) -> Term

Converts to this type from the input type.
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impl<'a> From<TripleRef<'a>> for Triple

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

Converts to this type from the input type.
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impl FromIterator<Triple> for Graph

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fn from_iter<I>(iter: I) -> Graph
where I: IntoIterator<Item = Triple>,

Creates a value from an iterator. Read more
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impl FromStr for Triple

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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")
    )
);
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type Err = TermParseError

The associated error which can be returned from parsing.
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impl Hash for Triple

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

Feeds this value into the given Hasher. Read more
1.3.0 · Source§

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

Feeds a slice of this type into the given Hasher. Read more
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impl PartialEq for Triple

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

Tests for self and other values to be equal, and is used by ==.
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fn ne(&self, other: &Rhs) -> bool

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.
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impl TryFrom<TriplePattern> for Triple

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type Error = ()

The type returned in the event of a conversion error.
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fn try_from( triple: TriplePattern, ) -> Result<Triple, <Triple as TryFrom<TriplePattern>>::Error>

Performs the conversion.
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impl Eq for Triple

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impl StructuralPartialEq for Triple

Auto Trait Implementations§

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impl Freeze for Triple

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impl RefUnwindSafe for Triple

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impl Send for Triple

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impl Sync for Triple

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impl Unpin for Triple

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impl UnwindSafe for Triple

Blanket Implementations§

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impl<T> Any for T
where T: 'static + ?Sized,

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fn type_id(&self) -> TypeId

Gets the TypeId of self. Read more
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impl<T> Borrow<T> for T
where T: ?Sized,

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fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more
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impl<T> BorrowMut<T> for T
where T: ?Sized,

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fn borrow_mut(&mut self) -> &mut T

Mutably borrows from an owned value. Read more
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impl<T> CloneToUninit for T
where T: Clone,

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unsafe fn clone_to_uninit(&self, dst: *mut u8)

🔬This is a nightly-only experimental API. (clone_to_uninit)
Performs copy-assignment from self to dst. Read more
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impl<Q, K> Equivalent<K> for Q
where Q: Eq + ?Sized, K: Borrow<Q> + ?Sized,

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fn equivalent(&self, key: &K) -> bool

Checks if this value is equivalent to the given key. Read more
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impl<T> From<T> for T

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fn from(t: T) -> T

Returns the argument unchanged.

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impl<T, U> Into<U> for T
where U: From<T>,

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fn into(self) -> U

Calls U::from(self).

That is, this conversion is whatever the implementation of From<T> for U chooses to do.

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impl<T> Same for T

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type Output = T

Should always be Self
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impl<T> ToOwned for T
where T: Clone,

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type Owned = T

The resulting type after obtaining ownership.
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fn to_owned(&self) -> T

Creates owned data from borrowed data, usually by cloning. Read more
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fn clone_into(&self, target: &mut T)

Uses borrowed data to replace owned data, usually by cloning. Read more
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impl<T> ToString for T
where T: Display + ?Sized,

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default fn to_string(&self) -> String

Converts the given value to a String. Read more
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impl<T, U> TryFrom<U> for T
where U: Into<T>,

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type Error = Infallible

The type returned in the event of a conversion error.
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fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>

Performs the conversion.
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impl<T, U> TryInto<U> for T
where U: TryFrom<T>,

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type Error = <U as TryFrom<T>>::Error

The type returned in the event of a conversion error.
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fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>

Performs the conversion.
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impl<V, T> VZip<V> for T
where V: MultiLane<T>,

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fn vzip(self) -> V