Nepomuk::Query::NegationTerm Class Reference

#include <Nepomuk/Query/NegationTerm>

Inheritance diagram for Nepomuk::Query::NegationTerm:

List of all members.

Public Member Functions
	NegationTerm ()
	NegationTerm (const NegationTerm &term)
	~NegationTerm ()
NegationTerm &	operator= (const NegationTerm &term)
Static Public Member Functions
static Term	negateTerm (const Term &term)
Related Functions
(Note that these are not member functions.)
Term	operator! (const Term &term)

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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.

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Constructor & Destructor Documentation

Nepomuk::Query::NegationTerm::NegationTerm

(

)

Default constructor: creates an invalid negation term.

Nepomuk::Query::NegationTerm::NegationTerm

(

const NegationTerm &

term

)

Copy constructor.

Nepomuk::Query::NegationTerm::~NegationTerm

(

)

Destructor.

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Member Function Documentation

static Term Nepomuk::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.

NegationTerm& Nepomuk::Query::NegationTerm::operator=

(

const NegationTerm &

term

)

Assignment operator.

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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
• term.h