Nepomuk2::Query::NegationTerm Class Reference

#include <Nepomuk2/Query/NegationTerm>

Inheritance diagram for Nepomuk2::Query::NegationTerm:

Public Member Functions
	NegationTerm ()
	NegationTerm (const NegationTerm &term)
	~NegationTerm ()
NegationTerm &	operator= (const NegationTerm &term)
Public Member Functions inherited from Nepomuk2::Query::SimpleTerm
	~SimpleTerm ()
void	setSubTerm (const Term &term)
Term	subTerm () const
Public Member Functions inherited from Nepomuk2::Query::Term
	Term ()
	Term (const Term &other)
	~Term ()
bool	isAndTerm () const
bool	isComparisonTerm () const
bool	isLiteralTerm () const
bool	isNegationTerm () const
bool	isOptionalTerm () const
bool	isOrTerm () const
bool	isResourceTerm () const
bool	isResourceTypeTerm () const
bool	isValid () const
bool	operator!= (const Term &term) const
QDebug	operator<< (QDebug) const
Term &	operator= (const Term &other)
bool	operator== (const Term &term) const
Term	optimized () const
void	setUserData (const QString &key, const QVariant &value)
AndTerm	toAndTerm () const
AndTerm &	toAndTerm ()
ComparisonTerm	toComparisonTerm () const
ComparisonTerm &	toComparisonTerm ()
LiteralTerm	toLiteralTerm () const
LiteralTerm &	toLiteralTerm ()
NegationTerm	toNegationTerm () const
NegationTerm &	toNegationTerm ()
OptionalTerm	toOptionalTerm () const
OptionalTerm &	toOptionalTerm ()
OrTerm	toOrTerm () const
OrTerm &	toOrTerm ()
ResourceTerm	toResourceTerm () const
ResourceTerm &	toResourceTerm ()
ResourceTypeTerm	toResourceTypeTerm () const
ResourceTypeTerm &	toResourceTypeTerm ()
QString	toString () const
Type	type () const
QVariant	userData (const QString &key) const

Static Public Member Functions
static Term	negateTerm (const Term &term)
Static Public Member Functions inherited from Nepomuk2::Query::Term
static Term	fromString (const QString &s)
static Term	fromVariant (const Variant &variant)

Related Functions
(Note that these are not member functions.)
Term	operator! (const Term &term)
Related Functions inherited from Nepomuk2::Query::Term
static Term	fromProperty (const Types::Property &property, const Variant &variant)

Additional Inherited Members
Public Types inherited from Nepomuk2::Query::Term
enum	Type {   Invalid, Literal, Resource, And,   Or, Comparison, ResourceType, Negation,   Optional }

Detailed Description

Negate an arbitrary term.

NegationTerm can be used to negate any other term. A typical example could be to match all resources that do not have a specific tag:

NegationTerm::negateTerm( ComparisonTerm( Vocabulary::NAO::hasTag(), LiteralTerm("nepomuk") ) );

Author

Sebastian Trueg trueg.nosp@m.@kde.nosp@m..org

Since

4.4

Definition at line 47 of file negationterm.h.

Constructor & Destructor Documentation

Nepomuk2::Query::NegationTerm::NegationTerm

(

)

Default constructor: creates an invalid negation term.

Definition at line 77 of file negationterm.cpp.

Nepomuk2::Query::NegationTerm::NegationTerm

(

const NegationTerm &

term

)

Copy constructor.

Definition at line 83 of file negationterm.cpp.

Nepomuk2::Query::NegationTerm::~NegationTerm

(

)

Destructor.

Definition at line 89 of file negationterm.cpp.

Member Function Documentation

Nepomuk2::Query::Term Nepomuk2::Query::NegationTerm::negateTerm ( const Term &  term )

static

Negate term.

This method will either strip the first NegationTerm from term or add one.

Returns

The negated term.

Definition at line 101 of file negationterm.cpp.

Nepomuk2::Query::NegationTerm & Nepomuk2::Query::NegationTerm::operator=

(

const NegationTerm &

term

)

Assignment operator.

Definition at line 94 of file negationterm.cpp.

Friends And Related Function Documentation

Term operator! ( const Term &  term )

related

Logical negation operator which negates the meaning of one term.

See also

NegationTerm::negateTerm()

Since

4.6

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

• negationterm.h
• negationterm.cpp
• term.h