Struct BlankNode 

pub struct BlankNode { /* private fields */ }

A blank node identifier

Blank nodes are local identifiers used in RDF graphs that don’t have global meaning. Supports both named identifiers and efficient numerical IDs.

Implementations

impl BlankNode

pub fn new(id: impl Into<String>) -> Result<Self, OxirsError>

Creates a new blank node with the given identifier

Arguments

• id - The blank node identifier (with or without _: prefix)

Errors

Returns an error if the ID format is invalid according to RDF specifications

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

Creates a new blank node without validation

Safety

The caller must ensure the ID is valid and properly formatted

pub fn new_from_unique_id(id: u128) -> Self

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 new_unique() -> Self

Generates a new unique blank node with collision detection

This method ensures global uniqueness across all threads and sessions

pub fn new_unique_with_prefix(prefix: &str) -> Result<Self, OxirsError>

Generates a new unique blank node with a custom prefix

pub fn id(&self) -> &str

Returns the blank node identifier

pub fn as_str(&self) -> &str

Returns the blank node identifier as a string slice

pub fn unique_id(&self) -> Option<u128>

Returns the internal numerical ID of this blank node if it has been created using BlankNode::new_from_unique_id or BlankNode::default.

pub fn local_id(&self) -> &str

Returns the blank node identifier without the _: prefix

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

Returns a reference to this BlankNode as a BlankNodeRef

Trait Implementations

impl Clone for BlankNode

fn clone(&self) -> BlankNode

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for BlankNode

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

Formats the value using the given formatter.

impl Default for BlankNode

fn default() -> Self

Builds a new RDF blank node with a unique id. Ensures the ID does not start with a number to be also valid with RDF/XML

impl<'de> Deserialize<'de> for BlankNode

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

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl Display for BlankNode

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

Formats the value using the given formatter.

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

fn from(node: &'a BlankNode) -> Self

Converts to this type from the input type.

impl From<BlankNode> for GraphName

fn from(node: BlankNode) -> Self

Converts to this type from the input type.

impl From<BlankNode> for NamedOrBlankNode

fn from(node: BlankNode) -> Self

Converts to this type from the input type.

impl From<BlankNode> for Object

fn from(node: BlankNode) -> Self

Converts to this type from the input type.

impl From<BlankNode> for Subject

fn from(node: BlankNode) -> Self

Converts to this type from the input type.

impl From<BlankNode> for Term

fn from(node: BlankNode) -> Self

Converts to this type from the input type.

impl From<BlankNode> for TermPattern

fn from(b: BlankNode) -> Self

Converts to this type from the input type.

impl From<BlankNode> for TermPattern

fn from(n: BlankNode) -> Self

Converts to this type from the input type.

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

fn from(node_ref: BlankNodeRef<'a>) -> Self

Converts to this type from the input type.

impl Hash for BlankNode

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 BlankNode

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

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

fn partial_cmp(&self, other: &BlankNode) -> 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 RdfTerm for BlankNode

fn as_str(&self) -> &str

Returns the string representation of this term

fn is_blank_node(&self) -> bool

Returns true if this is a blank node

fn is_named_node(&self) -> bool

Returns true if this is a named node (IRI)

fn is_literal(&self) -> bool

Returns true if this is a literal

fn is_variable(&self) -> bool

Returns true if this is a variable

fn is_quoted_triple(&self) -> bool

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

impl Serialize for BlankNode

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

where __S: Serializer,

Serialize this value into the given Serde serializer.

impl Eq for BlankNode

impl ObjectTerm for BlankNode

impl StructuralPartialEq for BlankNode

impl SubjectTerm for BlankNode