Struct QuadPattern

• Defined in File QuadPattern.hpp

Inheritance Relationships

Derived Type

• public rdf4cpp::Quad (Struct Quad)

Struct Documentation

struct QuadPattern

QuadPattern is modeled around SPARQL qual patterns.

One important difference is that pattern matching with BlankNodes is allowed subject and object. For the equivalent of SPARQL anonymous variables, use Variable and set anonymous to true.

See also

https://www.w3.org/TR/sparql11-query/#defn_TriplePattern

Subclassed by rdf4cpp::Quad

Public Types

using value_type = Node

using reference = value_type&

using const_reference = value_type const&

using pointer = value_type*

using const_pointer = value_type const*

using size_type = size_t

using difference_type = ptrdiff_t

using iterator = typename storage_type::iterator

using const_iterator = typename storage_type::const_iterator

using reverse_iterator = typename storage_type::reverse_iterator

using const_reverse_iterator = typename storage_type::const_reverse_iterator

Public Functions

QuadPattern() noexcept = default

QuadPattern(Node graph, Node subject, Node predicate, Node object) noexcept

inline reference graph() noexcept

inline const_reference graph() const noexcept

inline reference subject() noexcept

inline const_reference subject() const noexcept

inline reference predicate() noexcept

inline const_reference predicate() const noexcept

inline reference object() noexcept

inline const_reference object() const noexcept

inline reference operator[](size_type ix) noexcept

inline const_reference operator[](size_type ix) const noexcept

inline size_type size() const noexcept

bool valid() const noexcept

inline iterator begin() noexcept

inline const_iterator begin() const noexcept

inline iterator end() noexcept

inline const_iterator end() const noexcept

inline reverse_iterator rbegin() noexcept

inline const_reverse_iterator rbegin() const noexcept

inline reverse_iterator rend() noexcept

inline const_reverse_iterator rend() const noexcept

TriplePattern const &without_graph() const noexcept

auto operator<=>(QuadPattern const &rhs) const = default

explicit operator std::string() const

QuadPattern to_node_storage(storage::DynNodeStoragePtr node_storage) const

QuadPattern try_get_in_node_storage(storage::DynNodeStoragePtr node_storage) const noexcept

Protected Types

using storage_type = std::array<Node, 4>

Protected Attributes

storage_type entries_ = {}

Friends

friend std::ostream &operator<<(std::ostream &os, QuadPattern const &pattern)