Struct IRI¶

Defined in File IRI.hpp

Inheritance Relationships¶

Base Type¶

public rdf4cpp::Node (Struct Node)

Struct Documentation¶

struct IRI : public rdf4cpp::Node ¶

IRI Resource node.

Public Functions

operator datatypes::registry::DatatypeIDView() const noexcept¶: Constructs the corresponding datatype id for this iri. Return value can be safely used to index the registry and yields the correct result.

explicit IRI(storage::identifier::NodeBackendHandle handle) noexcept¶: Constructs an IRI from a node backend handle

IRI() noexcept¶: Constructs the null-iri

explicit IRI(std::string_view iri, storage::DynNodeStoragePtr node_storage = storage::default_node_storage)¶

Constructs an IRI object from a IRI string

Parameters:

iri – IRI string
node_storage – optional custom node_storage used to store the IRI

Throws:

rdf4cpp::ParsingError – if iri is invalid

IRI to_node_storage(storage::DynNodeStoragePtr node_storage) const¶

IRI try_get_in_node_storage(storage::DynNodeStoragePtr node_storage) const noexcept¶

std::string_view identifier() const noexcept¶

Get the IRI string of this.

Returns:: IRI string

FetchOrSerializeResult fetch_or_serialize_identifier(std::string_view &out, writer::BufWriterParts writer) const noexcept¶

bool serialize(writer::BufWriterParts writer) const noexcept¶: See Node::serialize

explicit operator std::string() const noexcept¶

bool is_literal() const noexcept = delete¶

bool is_variable() const noexcept = delete¶

bool is_blank_node() const noexcept = delete¶

bool is_iri() const noexcept = delete¶

TriBool is_default_graph() const noexcept¶

Returns:: err if this is null, otherwise true iff this IRI is the default graph IRI

TriBool is_rdf_type() const noexcept¶

Check if this IRI is rdf:type

Returns:: err if this is null, otherwise true iff this IRI is rdf:type

template<datatypes::LiteralDatatype T> inline TriBool is_datatype() const noexcept¶

Check if this IRI is the IRI of the given datatype

Template Parameters:: T – datatype
Returns:: err if this is null, otherwise true iff this IRI is the datatype IRI of the given datatype

Public Static Functions

static IRI make_null() noexcept¶: Constructs the null-iri

static IRI make(std::string_view iri, storage::DynNodeStoragePtr node_storage = storage::default_node_storage)¶

Constructs an IRI object from a IRI string.

Parameters:

iri – IRI string
node_storage – optional custom node_storage used to store the IRI

Throws:

rdf4cpp::ParsingError – if iri is invalid

static IRI make_unchecked(std::string_view iri, storage::DynNodeStoragePtr node_storage = storage::default_node_storage)¶

Constructs an IRI object from a IRI string without checking if the IRI is valid.

Parameters:

iri – IRI string
node_storage – optional custom node_storage used to store the IRI

static IRI make_uuid(storage::DynNodeStoragePtr node_storage = storage::default_node_storage)¶

creates a new IRI containing a random UUID (Universally Unique IDentifier)

Returns:: UUID IRI

static IRI find(std::string_view iri, storage::DynNodeStoragePtr node_storage = storage::default_node_storage) noexcept¶

searches for a IRI in the specified node storage and returns it. returns a null IRI, if not found.

Parameters:

iri –
node_storage –

Returns:

static void validate(std::string_view iri)¶

Validates that the given input string is a valid IRI

Parameters:: iri – iri string to validate
Throws:: ParsingError – if the given IRI is invalid

static IRI default_graph(storage::DynNodeStoragePtr node_storage = storage::default_node_storage)¶

Get the default graph IRI.

Parameters:: node_storage – optional custom node_storage where the returned IRI lives
Returns:: default graph IRI

static IRI rdf_type(storage::DynNodeStoragePtr node_storage = storage::default_node_storage)¶

Get the IRI for rdf:type

Parameters:: node_storage – optional custom node_storage where the returned IRI lives
Returns:: rdf:type IRI

template<datatypes::LiteralDatatype T> static inline IRI datatype(storage::DynNodeStoragePtr node_storage = storage::default_node_storage)¶

Get the IRI for the given datatype

Template Parameters:: T – datatype
Parameters:: node_storage – optional node storage where the returned IRI is placed
Returns:: datatype IRI

Friends

friend struct Node

friend struct Literal

friend std::ostream &operator<<(std::ostream &os, const IRI &iri)¶