knowrob::Perspective Class Reference

#include <Perspective.h>

Public Member Functions
	Perspective (std::string_view iri)
	Perspective (IRIAtomPtr atom)
auto	iri () const
auto	atom () const
	Perspective (std::string_view iri)
	Perspective (IRIAtomPtr atom)
auto	iri () const
auto	atom () const

Static Public Member Functions
static std::shared_ptr< Perspective >	getEgoPerspective ()
static bool	isEgoPerspective (std::string_view iri)
static std::shared_ptr< Perspective >	get (std::string_view iri)
static std::shared_ptr< Perspective >	getEgoPerspective ()
static bool	isEgoPerspective (std::string_view iri)
static std::shared_ptr< Perspective >	get (std::string_view iri)

Protected Attributes
IRIAtomPtr	atom_

Static Protected Attributes
static std::map< std::string_view, std::shared_ptr< Perspective > >	perspectiveMap_

Detailed Description

A perspective is a point of view from which a statement is true or false. Usually a perspective is associated with an IRI denoting an agent or a group of agents.

Definition at line 21 of file Perspective.h.

Constructor & Destructor Documentation

Perspective() [1/4]

Perspective::Perspective ( std::string_view  iri )

explicit

Create a new perspective with the given IRI.

Parameters

iri	the IRI of the perspective

Definition at line 15 of file Perspective.cpp.

        : atom_(IRIAtom::Tabled(iri)) {}

Perspective() [2/4]

knowrob::Perspective::Perspective ( IRIAtomPtr  atom )

inlineexplicit

Create a new perspective with the given IRI atom.

Parameters

atom	the IRI atom of the perspective

Definition at line 33 of file Perspective.h.

: atom_(std::move(atom)) {}

Perspective() [3/4]

knowrob::Perspective::Perspective ( std::string_view  iri )

explicit

Create a new perspective with the given IRI.

Parameters

iri	the IRI of the perspective

Perspective() [4/4]

knowrob::Perspective::Perspective ( IRIAtomPtr  atom )

inlineexplicit

Create a new perspective with the given IRI atom.

Parameters

atom	the IRI atom of the perspective

Definition at line 33 of file Perspective.h.

: atom_(std::move(atom)) {}

Member Function Documentation

atom() [1/2]

auto knowrob::Perspective::atom ( ) const

inline

Returns

the IRI atom of the perspective

Definition at line 43 of file Perspective.h.

{ return atom_; }

atom() [2/2]

auto knowrob::Perspective::atom ( ) const

inline

Returns

the IRI atom of the perspective

Definition at line 43 of file Perspective.h.

{ return atom_; }

get() [1/2]

std::shared_ptr< Perspective > Perspective::get ( std::string_view  iri )

static

Parameters

iri

an IRI

Returns

the perspective with the given IRI

Definition at line 31 of file Perspective.cpp.

                                                              {
    auto it = perspectiveMap_.find(iri);
    if (it == perspectiveMap_.end()) {
        auto agent = std::make_shared<Perspective>(iri);
        perspectiveMap_[iri] = agent;
        return agent;
    } else {
        return it->second;
    }
}

get() [2/2]

static std::shared_ptr<Perspective> knowrob::Perspective::get ( std::string_view  iri )

static

Parameters

iri

an IRI

Returns

the perspective with the given IRI

getEgoPerspective() [1/2]

std::shared_ptr< Perspective > Perspective::getEgoPerspective ( )

static

The egoIRI perspective is a special perspective taken by the agent running the knowledge base.

Returns

the egoIRI perspective

Definition at line 18 of file Perspective.cpp.

                                                          {
    static std::shared_ptr<Perspective> egoPerspective;
    if (egoPerspective == nullptr) {
        egoPerspective = std::make_shared<Perspective>(GlobalSettings::egoIRI());
        perspectiveMap_[egoPerspective->iri()] = egoPerspective;
    }
    return egoPerspective;
}

getEgoPerspective() [2/2]

static std::shared_ptr<Perspective> knowrob::Perspective::getEgoPerspective ( )

static

The egoIRI perspective is a special perspective taken by the agent running the knowledge base.

Returns

the egoIRI perspective

iri() [1/2]

auto knowrob::Perspective::iri ( ) const

inline

Returns

the IRI of the perspective

Definition at line 38 of file Perspective.h.

{ return atom_->stringForm(); }

iri() [2/2]

auto knowrob::Perspective::iri ( ) const

inline

Returns

the IRI of the perspective

Definition at line 38 of file Perspective.h.

{ return atom_->stringForm(); }

isEgoPerspective() [1/2]

bool Perspective::isEgoPerspective ( std::string_view  iri )

static

Parameters

iri

an IRI

Returns

true if the IRI denotes the egoIRI perspective

Definition at line 27 of file Perspective.cpp.

                                                     {
    return iri.empty() || iri == GlobalSettings::egoIRI()->stringForm();
}

isEgoPerspective() [2/2]

static bool knowrob::Perspective::isEgoPerspective ( std::string_view  iri )

static

Parameters

iri

an IRI

Returns

true if the IRI denotes the egoIRI perspective

Member Data Documentation

atom_

IRIAtomPtr knowrob::Perspective::atom_

protected

Definition at line 65 of file Perspective.h.

perspectiveMap_

std::map< std::string_view, std::shared_ptr< Perspective > > Perspective::perspectiveMap_

staticprotected

Initial value:

=
    std::map<std::string_view, std::shared_ptr<Perspective>>()

Definition at line 64 of file Perspective.h.

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

• build/_CPack_Packages/Linux/DEB/knowrob-2.1.0-Linux/usr/include/knowrob/semweb/Perspective.h
• src/semweb/Perspective.cpp