Struct Namespace¶

Defined in File Namespace.hpp

Inheritance Relationships¶

Derived Types¶

public rdf4cpp::ClosedNamespace (Struct ClosedNamespace)
public rdf4cpp::namespaces::XSD (Struct XSD)

Struct Documentation¶

struct Namespace¶

Namespace provides a simple tool to create IRIs from a certain namespace and vocabulary. Each Namespace instance maintains an internal cache to save roundtrip to storage::NodeStorage

Example:

Namespace ex("http://example.com/);
IRI me = ex + "me";

Subclassed by rdf4cpp::ClosedNamespace, rdf4cpp::namespaces::XSD

Public Functions

explicit Namespace(std::string_view namespace_iri, storage::DynNodeStoragePtr node_storage = storage::default_node_storage)¶

Namespace Constructor

Parameters:

namespace_iri – namespace IRI string. This will be used as prefix. IRI must not be encapsulated in <..>.
node_storage – where the IRIs will live

std::string_view name_space() const noexcept¶

Returns:: IRI string of the Namespace

storage::DynNodeStoragePtr node_storage() const¶

Returns:: NodeStorage used to create IRIs from this Namespace.

virtual IRI operator+(std::string_view suffix) const¶

Create an IRI with the suffix added to the Namespace.

Parameters:: suffix – suffix that is appended
Returns:: the constructed IRI

virtual void clear() const¶: Clears the cache.

Protected Attributes

std::string namespace_iri_¶: The IRI string of the namespace.

storage::DynNodeStoragePtr node_storage_¶: NodeStorage from which IRI objects are created.

mutable dice::sparse_map::sparse_map<std::string, storage::identifier::NodeBackendID, dice::hash::DiceHashwyhash<std::string_view>, std::equal_to<>> cache_¶: Cache storing the NodeBackendHandle for prefixes. This saves roundtrips to NodeStorage.