#include <Literal.h>

Inheritance diagram for knowRDF::Literal:

Collaboration diagram for knowRDF::Literal:

Public Member Functions
	Literal ()

	Literal (const knowCore::Value &_rhs, const QString &_lang=QString())

	Literal (const Literal &_rhs)

Literal &	operator= (const Literal &_rhs)

knowCore::Uri	datatype () const

QString	lang () const

bool	operator< (const Literal &_rhs) const

bool	operator== (const Literal &_rhs) const

knowCore::ReturnValue< QByteArray >	md5 () const

knowCore::ReturnValue< QJsonValue >	toJsonValue (const knowCore::SerialisationContexts &_contexts) const

knowCore::ReturnValue< QCborValue >	toCborValue (const knowCore::SerialisationContexts &_contexts) const

Public Member Functions inherited from knowCore::Value
	Value ()

	Value (const Value &_rhs)

Value &	operator= (const Value &_rhs)

QVariant	toVariant () const

Uri	datatype () const

bool	isEmpty () const

bool	operator< (const Value &_rhs) const

bool	operator== (const Value &_rhs) const

bool	operator!= (const Value &_rhs) const

ReturnValue< bool >	compare (const Value &_value, ComparisonOperators _operators) const

ReturnValue< Value >	convert (const Uri &_uri, TypeCheckingMode _conversion=TypeCheckingMode::Safe) const

ReturnValue< Value >	compute (const Value &_value, ArithmeticOperator _operator) const

template<typename _T_ >
ReturnValue< _T_ >	value (TypeCheckingMode _conversion=TypeCheckingMode::Safe) const

template<typename _T_ >
_T_	value (const _T_ &_default, TypeCheckingMode _conversion=TypeCheckingMode::Safe) const

template<typename _T_ >
bool	canConvert (TypeCheckingMode _conversion=TypeCheckingMode::Safe) const

bool	canConvert (const Uri &_uri, TypeCheckingMode _conversion=TypeCheckingMode::Safe) const

template<typename _T_ >
bool	is () const

ReturnValue< QByteArray >	md5 () const

ReturnValue< QJsonValue >	toJsonValue (const SerialisationContexts &_contexts=defaultSerialisationContext()) const

ReturnValue< QCborValue >	toCborValue (const SerialisationContexts &_contexts=defaultSerialisationContext()) const

ReturnValue< QString >	toRdfLiteral (const SerialisationContexts &_contexts=defaultSerialisationContext()) const

ReturnValue< QString >	printable () const

ReturnValue< QJsonObject >	toJsonObject (const SerialisationContexts &_contexts=defaultSerialisationContext()) const

ReturnValue< QCborMap >	toCborMap (const SerialisationContexts &_contexts=defaultSerialisationContext()) const

ReturnValue< ValueList >	toList () const

ReturnValue< ValueHash >	toHash () const

Static Public Member Functions
template<typename _T_ >
static Literal	fromValue (const _T_ &_value, const Lang &_lang=Lang(QString()))

static knowCore::ReturnValue< Literal >	fromValue (const knowCore::Value &_value, const Lang &_lang)

static knowCore::ReturnValue< Literal >	fromValue (const Literal &_value, const Lang &_lang=Lang(QString()))

static knowCore::ReturnValue< Literal >	fromValue (const QVariant &_value, const Lang &_lang=Lang(QString()))

template<typename _T_ >
static knowCore::ReturnValue< Literal >	fromValue (const knowCore::Uri &_datatype, const _T_ &_value, const QString &_lang=QString(), knowCore::TypeCheckingMode _conversion=knowCore::TypeCheckingMode::Safe)

static Literal	fromValue (const knowCore::Value &_rhs)

static knowCore::ReturnValue< Literal >	fromVariant (const knowCore::Uri &_datatype, const QVariant &_value, const QString &_lang=QString(), knowCore::TypeCheckingMode _conversion=knowCore::TypeCheckingMode::Safe)

static knowCore::ReturnValue< Literal >	fromVariant (const QVariant &_value, const QString &_lang=QString())

static knowCore::ReturnValue< Literal >	fromRdfLiteral (const knowCore::Uri &_datatype, const QString &_value, const QString &_lang=QString())

static knowCore::ReturnValue< Literal >	fromJsonValue (const QJsonValue &_value, const knowCore::DeserialisationContexts &_contexts)

static knowCore::ReturnValue< Literal >	fromCborValue (const QCborValue &_value, const knowCore::DeserialisationContexts &_contexts)

template<>
knowCore::ReturnValue< Literal >	fromValue (const knowCore::Uri &_datatype, const QVariant &_value, const QString &_lang, knowCore::TypeCheckingMode _conversion)

Static Public Member Functions inherited from knowCore::Value
template<typename _T_ >
static Value	fromValue (const _T_ &_value)

static ReturnValue< Value >	fromValue (const QVariant &_value)

template<typename _T_ >
static ReturnValue< Value >	fromValue (const Uri &_datatype, const _T_ &_value, TypeCheckingMode _conversion=TypeCheckingMode::Safe)

static ReturnValue< Value >	fromVariant (const Uri &_datatype, const QVariant &_value, TypeCheckingMode _conversion=TypeCheckingMode::Safe)

static ReturnValue< Value >	fromVariant (const QVariant &_variant)

static ReturnValue< Value >	fromJsonValue (const Uri &_datatype, const QJsonValue &_value, const DeserialisationContexts &_context=defaultDeserialisationContext())

template<typename _T_ >
static ReturnValue< _T_ >	fromJsonValue (const QJsonValue &_value, const DeserialisationContexts &_context=defaultDeserialisationContext())

static ReturnValue< Value >	fromCborValue (const Uri &_datatype, const QCborValue &_value, const DeserialisationContexts &_context=defaultDeserialisationContext())

static ReturnValue< Value >	fromRdfLiteral (const Uri &_datatype, const QString &_value, const DeserialisationContexts &_context=defaultDeserialisationContext())

static ReturnValue< Value >	fromJsonObject (const QJsonObject &_value, const DeserialisationContexts &_context=defaultDeserialisationContext())

static ReturnValue< Value >	fromCborMap (const QCborMap &_value, const DeserialisationContexts &_context=defaultDeserialisationContext())

template<>
ReturnValue< Value >	fromValue (const Uri &_datatype, const QVariant &_value, TypeCheckingMode _conversion)

Detailed Description

Represents a RDF Literal, as knowCore::Value with a lang tag.

Constructor & Destructor Documentation

◆ Literal()

Literal::Literal ( )

Construct an empty Literal

Member Function Documentation

◆ datatype()

knowCore::Uri Literal::datatype ( ) const

Returns: the URI corresponding to the datatype, this might differ from Value::datatype in case Value::datatype is set to knowCore::Uris::xsd::string and the literal hold a value as a QString for an unregistered type.

◆ fromRdfLiteral()

knowCore::ReturnValue< Literal > Literal::fromRdfLiteral	(	const knowCore::Uri &	_datatype,
		const QString &	_value,
		const QString &	_lang = QString() )

static

Create a Literal from a string and datatype. If the type is not available in knowCore MetaType system, it is stored as a string. If the type is available, attemps a conversion, which may fails.

◆ fromValue()

Literal Literal::fromValue ( const knowCore::Value & _rhs )

static

Construct a literal from a value. If _rhs contains a Literal, it returns it, otherwise, it call the Literal constructor with the value and an empty lang.

◆ fromVariant() [1/2]

knowCore::ReturnValue< Literal > Literal::fromVariant	(	const knowCore::Uri &	_datatype,
		const QVariant &	_value,
		const QString &	_lang = QString(),
		knowCore::TypeCheckingMode	_conversion = knowCore::TypeCheckingMode::Safe )

static

Construct a literal from its full definition

Parameters

_datatype	the type of the literal
_value	a variant with the value
_lang	the language tag (ie 'en')
_normalise	whether the QVariant should be casted to the default type for `_datatype`

◆ fromVariant() [2/2]

knowCore::ReturnValue< Literal > Literal::fromVariant	(	const QVariant &	_value,
		const QString &	_lang = QString() )

static

Create a Literal from a variant.

◆ lang()

QString Literal::lang ( ) const

Returns: the lang tag

The documentation for this class was generated from the following files:

knowl/src/knowRDF/Literal.h
knowl/src/knowRDF/Literal.cpp

Public Member Functions

Static Public Member Functions

Detailed Description

Constructor & Destructor Documentation

◆ Literal()

Member Function Documentation

◆ datatype()

◆ fromRdfLiteral()

◆ fromValue()

◆ fromVariant() [1/2]

◆ fromVariant() [2/2]

◆ lang()