Skip to main content

BlankNode

flams_math_archives::triple_store::sparql::spargebra::term

Struct BlankNode 

pub struct BlankNode(BlankNodeContent);
Available on crate feature rdf only.
Expand description

An owned RDF blank node.

The common way to create a new blank node is to use the BlankNode::default() function.

It is also possible to create a blank node from a blank node identifier using the BlankNode::new() function. The blank node identifier must be valid according to N-Triples, Turtle, and SPARQL grammars.

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

use oxrdf::BlankNode;

assert_eq!("_:a122", BlankNode::new("a122")?.to_string());

Tuple Fields§

§0: BlankNodeContent

Implementations§

§

impl BlankNode

pub fn new(id: impl Into<String>) -> Result<BlankNode, BlankNodeIdParseError>

Creates a blank node from a unique identifier.

The blank node identifier must be valid according to N-Triples, Turtle, and SPARQL grammars.

In most cases, it is much more convenient to create a blank node using BlankNode::default() that creates a random ID that could be easily inlined by Oxigraph stores.

pub fn new_unchecked(id: impl Into<String>) -> BlankNode

Creates a blank node from a unique identifier without validation.

It is the caller’s responsibility to ensure that id is a valid blank node identifier according to N-Triples, Turtle, and SPARQL grammars.

BlankNode::new() is a safe version of this constructor and should be used for untrusted data.

pub fn new_from_unique_id(id: u128) -> BlankNode

Creates a blank node from a unique numerical id.

In most cases, it is much more convenient to create a blank node using BlankNode::default().

pub fn as_str(&self) -> &str

Returns the underlying ID of this blank node.

pub fn into_string(self) -> String

Returns the underlying ID of this blank node.

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

Trait Implementations§

§

impl Clone for BlankNode

§

fn clone(&self) -> BlankNode

Returns a duplicate of the value. Read more
1.0.0 (const: unstable) · Source§

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

Performs copy-assignment from source. Read more
§

impl Debug for BlankNode

§

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

Formats the value using the given formatter. Read more
§

impl Default for BlankNode

§

fn default() -> BlankNode

Builds a new RDF blank node with a unique id.

§

impl Display for BlankNode

§

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

Formats the value using the given formatter. Read more
§

impl From<BlankNode> for Term

§

fn from(node: BlankNode) -> Term

Converts to this type from the input type.
§

impl From<BlankNode> for NamedOrBlankNode

§

fn from(node: BlankNode) -> NamedOrBlankNode

Converts to this type from the input type.
§

impl From<BlankNode> for TermPattern

§

fn from(node: BlankNode) -> TermPattern

Converts to this type from the input type.
§

impl<'a> From<BlankNodeRef<'a>> for BlankNode

§

fn from(node: BlankNodeRef<'a>) -> BlankNode

Converts to this type from the input type.
§

impl FromStr for BlankNode

§

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

Parses a blank node from its NTriples serialization

use oxrdf::BlankNode;
use std::str::FromStr;

assert_eq!(BlankNode::from_str("_:ex")?, BlankNode::new("ex")?);
§

type Err = TermParseError

The associated error which can be returned from parsing.
§

impl Hash for BlankNode

§

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
§

impl PartialEq<BlankNodeRef<'_>> for BlankNode

§

fn eq(&self, other: &BlankNodeRef<'_>) -> bool

Tests for self and other values to be equal, and is used by ==.
1.0.0 (const: unstable) · Source§

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 PartialEq for BlankNode

§

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

Tests for self and other values to be equal, and is used by ==.
1.0.0 (const: unstable) · Source§

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 TryFrom<Term> for BlankNode

§

type Error = TryFromTermError

The type returned in the event of a conversion error.
§

fn try_from( term: Term, ) -> Result<BlankNode, <BlankNode as TryFrom<Term>>::Error>

Performs the conversion.
§

impl Eq for BlankNode

§

impl StructuralPartialEq for BlankNode

Auto Trait Implementations§

Blanket Implementations§

Source§

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

Source§

fn type_id(&self) -> TypeId

Gets the TypeId of self. Read more
Source§

impl<T> Borrow<T> for T
where T: ?Sized,

Source§

fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more
Source§

impl<T> BorrowMut<T> for T
where T: ?Sized,

Source§

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

Mutably borrows from an owned value. Read more
Source§

impl<T> CloneToUninit for T
where T: Clone,

Source§

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

🔬This is a nightly-only experimental API. (clone_to_uninit)
Performs copy-assignment from self to dest. Read more
§

impl<T> Downcast for T
where T: Any,

§

fn into_any(self: Box<T>) -> Box<dyn Any>

Converts Box<dyn Trait> (where Trait: Downcast) to Box<dyn Any>, which can then be downcast into Box<dyn ConcreteType> where ConcreteType implements Trait.
§

fn into_any_rc(self: Rc<T>) -> Rc<dyn Any>

Converts Rc<Trait> (where Trait: Downcast) to Rc<Any>, which can then be further downcast into Rc<ConcreteType> where ConcreteType implements Trait.
§

fn as_any(&self) -> &(dyn Any + 'static)

Converts &Trait (where Trait: Downcast) to &Any. This is needed since Rust cannot generate &Any’s vtable from &Trait’s.
§

fn as_any_mut(&mut self) -> &mut (dyn Any + 'static)

Converts &mut Trait (where Trait: Downcast) to &Any. This is needed since Rust cannot generate &mut Any’s vtable from &mut Trait’s.
§

impl<T> DowncastSend for T
where T: Any + Send,

§

fn into_any_send(self: Box<T>) -> Box<dyn Any + Send>

Converts Box<Trait> (where Trait: DowncastSend) to Box<dyn Any + Send>, which can then be downcast into Box<ConcreteType> where ConcreteType implements Trait.
§

impl<T> DowncastSync for T
where T: Any + Send + Sync,

§

fn into_any_sync(self: Box<T>) -> Box<dyn Any + Sync + Send>

Converts Box<Trait> (where Trait: DowncastSync) to Box<dyn Any + Send + Sync>, which can then be downcast into Box<ConcreteType> where ConcreteType implements Trait.
§

fn into_any_arc(self: Arc<T>) -> Arc<dyn Any + Sync + Send> ⓘ

Converts Arc<Trait> (where Trait: DowncastSync) to Arc<Any>, which can then be downcast into Arc<ConcreteType> where ConcreteType implements Trait.
§

impl<Q, K> Equivalent<K> for Q
where Q: Eq + ?Sized, K: Borrow<Q> + ?Sized,

§

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

Compare self to key and return true if they are equal.
§

impl<Q, K> Equivalent<K> for Q
where Q: Eq + ?Sized, K: Borrow<Q> + ?Sized,

§

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

Checks if this value is equivalent to the given key. Read more
§

impl<Q, K> Equivalent<K> for Q
where Q: Eq + ?Sized, K: Borrow<Q> + ?Sized,

§

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

Checks if this value is equivalent to the given key. Read more
Source§

impl<T> From<T> for T

Source§

fn from(t: T) -> T

Returns the argument unchanged.

§

impl<T> FromRef<T> for T
where T: Clone,

§

fn from_ref(input: &T) -> T

Converts to this type from a reference to the input type.
§

impl<E, T, Request, Encoding> FromReq<Patch<Encoding>, Request, E> for T
where Request: Req<E> + Send + 'static, Encoding: Decodes<T>, E: FromServerFnError,

§

async fn from_req(req: Request) -> Result<T, E>

Attempts to deserialize the arguments from a request.
§

impl<E, T, Request, Encoding> FromReq<Post<Encoding>, Request, E> for T
where Request: Req<E> + Send + 'static, Encoding: Decodes<T>, E: FromServerFnError,

§

async fn from_req(req: Request) -> Result<T, E>

Attempts to deserialize the arguments from a request.
§

impl<E, T, Request, Encoding> FromReq<Put<Encoding>, Request, E> for T
where Request: Req<E> + Send + 'static, Encoding: Decodes<T>, E: FromServerFnError,

§

async fn from_req(req: Request) -> Result<T, E>

Attempts to deserialize the arguments from a request.
§

impl<E, Encoding, Response, T> FromRes<Patch<Encoding>, Response, E> for T
where Response: ClientRes<E> + Send, Encoding: Decodes<T>, E: FromServerFnError,

§

async fn from_res(res: Response) -> Result<T, E>

Attempts to deserialize the outputs from a response.
§

impl<E, Encoding, Response, T> FromRes<Post<Encoding>, Response, E> for T
where Response: ClientRes<E> + Send, Encoding: Decodes<T>, E: FromServerFnError,

§

async fn from_res(res: Response) -> Result<T, E>

Attempts to deserialize the outputs from a response.
§

impl<E, Encoding, Response, T> FromRes<Put<Encoding>, Response, E> for T
where Response: ClientRes<E> + Send, Encoding: Decodes<T>, E: FromServerFnError,

§

async fn from_res(res: Response) -> Result<T, E>

Attempts to deserialize the outputs from a response.
§

impl<T> Instrument for T

§

fn instrument(self, span: Span) -> Instrumented<Self>

Instruments this type with the provided [Span], returning an Instrumented wrapper. Read more
§

fn in_current_span(self) -> Instrumented<Self>

Instruments this type with the current Span, returning an Instrumented wrapper. Read more
Source§

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

Source§

fn into(self) -> U

Calls U::from(self).

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

Source§

impl<T> IntoEither for T

Source§

fn into_either(self, into_left: bool) -> Either<Self, Self>

Converts self into a Left variant of Either<Self, Self> if into_left is true. Converts self into a Right variant of Either<Self, Self> otherwise. Read more
Source§

fn into_either_with<F>(self, into_left: F) -> Either<Self, Self>
where F: FnOnce(&Self) -> bool,

Converts self into a Left variant of Either<Self, Self> if into_left(&self) returns true. Converts self into a Right variant of Either<Self, Self> otherwise. Read more
§

impl<E, T, Encoding, Request> IntoReq<Patch<Encoding>, Request, E> for T
where Request: ClientReq<E>, Encoding: Encodes<T>, E: FromServerFnError,

§

fn into_req(self, path: &str, accepts: &str) -> Result<Request, E>

Attempts to serialize the arguments into an HTTP request.
§

impl<E, T, Encoding, Request> IntoReq<Post<Encoding>, Request, E> for T
where Request: ClientReq<E>, Encoding: Encodes<T>, E: FromServerFnError,

§

fn into_req(self, path: &str, accepts: &str) -> Result<Request, E>

Attempts to serialize the arguments into an HTTP request.
§

impl<E, T, Encoding, Request> IntoReq<Put<Encoding>, Request, E> for T
where Request: ClientReq<E>, Encoding: Encodes<T>, E: FromServerFnError,

§

fn into_req(self, path: &str, accepts: &str) -> Result<Request, E>

Attempts to serialize the arguments into an HTTP request.
§

impl<E, Response, Encoding, T> IntoRes<Patch<Encoding>, Response, E> for T
where Response: TryRes<E>, Encoding: Encodes<T>, E: FromServerFnError + Send, T: Send,

§

async fn into_res(self) -> Result<Response, E>

Attempts to serialize the output into an HTTP response.
§

impl<E, Response, Encoding, T> IntoRes<Post<Encoding>, Response, E> for T
where Response: TryRes<E>, Encoding: Encodes<T>, E: FromServerFnError + Send, T: Send,

§

async fn into_res(self) -> Result<Response, E>

Attempts to serialize the output into an HTTP response.
§

impl<E, Response, Encoding, T> IntoRes<Put<Encoding>, Response, E> for T
where Response: TryRes<E>, Encoding: Encodes<T>, E: FromServerFnError + Send, T: Send,

§

async fn into_res(self) -> Result<Response, E>

Attempts to serialize the output into an HTTP response.
§

impl<T> Pointable for T

§

const ALIGN: usize

The alignment of pointer.
§

type Init = T

The type for initializers.
§

unsafe fn init(init: <T as Pointable>::Init) -> usize

Initializes a with the given initializer. Read more
§

unsafe fn deref<'a>(ptr: usize) -> &'a T

Dereferences the given pointer. Read more
§

unsafe fn deref_mut<'a>(ptr: usize) -> &'a mut T

Mutably dereferences the given pointer. Read more
§

unsafe fn drop(ptr: usize)

Drops the object pointed to by the given pointer. Read more
§

impl<T> PolicyExt for T
where T: ?Sized,

§

fn and<P, B, E>(self, other: P) -> And<T, P>
where T: Policy<B, E>, P: Policy<B, E>,

Create a new Policy that returns [Action::Follow] only if self and other return Action::Follow. Read more
§

fn or<P, B, E>(self, other: P) -> Or<T, P>
where T: Policy<B, E>, P: Policy<B, E>,

Create a new Policy that returns [Action::Follow] if either self or other returns Action::Follow. Read more
Source§

impl<T> Same for T

Source§

type Output = T

Should always be Self
§

impl<T> SerializableKey for T

§

fn ser_key(&self) -> String

Serializes the key to a unique string. Read more
§

impl<T> StorageAccess<T> for T

§

fn as_borrowed(&self) -> &T

Borrows the value.
§

fn into_taken(self) -> T

Takes the value.
Source§

impl<T> ToOwned for T
where T: Clone,

Source§

type Owned = T

The resulting type after obtaining ownership.
Source§

fn to_owned(&self) -> T

Creates owned data from borrowed data, usually by cloning. Read more
Source§

fn clone_into(&self, target: &mut T)

Uses borrowed data to replace owned data, usually by cloning. Read more
Source§

impl<T> ToString for T
where T: Display + ?Sized,

Source§

fn to_string(&self) -> String

Converts the given value to a String. Read more
Source§

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

Source§

type Error = Infallible

The type returned in the event of a conversion error.
Source§

fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>

Performs the conversion.
Source§

impl<T, U> TryInto<U> for T
where U: TryFrom<T>,

Source§

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

The type returned in the event of a conversion error.
Source§

fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>

Performs the conversion.
Source§

impl<S, T> Upcast<T> for S
where T: UpcastFrom<S> + ?Sized, S: ?Sized,

Source§

fn upcast(&self) -> &T
where Self: ErasableGeneric, T: ErasableGeneric<Repr = Self::Repr>,

Perform a zero-cost type-safe upcast to a wider ref type within the Wasm bindgen generics type system. Read more
Source§

fn upcast_into(self) -> T
where Self: Sized + ErasableGeneric, T: ErasableGeneric<Repr = Self::Repr>,

Perform a zero-cost type-safe upcast to a wider type within the Wasm bindgen generics type system. Read more
§

impl<V, T> VZip<V> for T
where V: MultiLane<T>,

§

fn vzip(self) -> V

§

impl<T> WithSubscriber for T

§

fn with_subscriber<S>(self, subscriber: S) -> WithDispatch<Self>
where S: Into<Dispatch>,

Attaches the provided Subscriber to this type, returning a [WithDispatch] wrapper. Read more
§

fn with_current_subscriber(self) -> WithDispatch<Self>

Attaches the current default Subscriber to this type, returning a [WithDispatch] wrapper. Read more
§

impl<T> Fruit for T
where T: Send + Downcast,