mirror of
https://bitbucket.org/smil3y/kde-extraapps.git
synced 2025-02-24 10:52:53 +00:00
137 lines
3.7 KiB
C++
137 lines
3.7 KiB
C++
/*
|
|
* This file is part of the syndication library
|
|
*
|
|
* Copyright (C) 2006 Frank Osterfeld <osterfeld@kde.org>
|
|
*
|
|
* This library is free software; you can redistribute it and/or
|
|
* modify it under the terms of the GNU Library General Public
|
|
* License as published by the Free Software Foundation; either
|
|
* version 2 of the License, or (at your option) any later version.
|
|
*
|
|
* This library is distributed in the hope that it will be useful,
|
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
|
* Library General Public License for more details.
|
|
*
|
|
* You should have received a copy of the GNU Library General Public License
|
|
* along with this library; see the file COPYING.LIB. If not, write to
|
|
* the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
|
|
* Boston, MA 02110-1301, USA.
|
|
*
|
|
*/
|
|
|
|
#include "statement.h"
|
|
#include "literal.h"
|
|
#include "model.h"
|
|
#include "model_p.h"
|
|
#include "property.h"
|
|
#include "resource.h"
|
|
|
|
#include <QtCore/QString>
|
|
|
|
#include <boost/weak_ptr.hpp>
|
|
|
|
namespace Syndication {
|
|
namespace RDF {
|
|
|
|
class Statement::StatementPrivate
|
|
{
|
|
public:
|
|
|
|
uint subjectID;
|
|
uint predicateID;
|
|
uint objectID;
|
|
boost::weak_ptr<Model::ModelPrivate> model;
|
|
|
|
bool operator==(const StatementPrivate& other) const
|
|
{
|
|
// FIXME: use better check that works also with multiple models
|
|
return subjectID == other.subjectID &&
|
|
predicateID == other.predicateID &&
|
|
objectID == other.objectID;
|
|
}
|
|
};
|
|
|
|
Statement::Statement() : d(new StatementPrivate)
|
|
{
|
|
d->subjectID = 0;
|
|
d->predicateID = 0;
|
|
d->objectID = 0;
|
|
}
|
|
|
|
Statement::Statement(const Statement& other)
|
|
{
|
|
d = other.d;
|
|
}
|
|
|
|
Statement::Statement(ResourcePtr subject, PropertyPtr predicate,
|
|
NodePtr object) : d(new StatementPrivate)
|
|
{
|
|
d->model = subject->model().d;
|
|
d->subjectID = subject->id();
|
|
d->predicateID = predicate->id();
|
|
d->objectID = object->id();
|
|
}
|
|
|
|
Statement::~Statement()
|
|
{
|
|
}
|
|
|
|
Statement& Statement::operator=(const Statement& other)
|
|
{
|
|
d = other.d;
|
|
return *this;
|
|
}
|
|
|
|
bool Statement::operator==(const Statement& other) const
|
|
{
|
|
if (!d || !other.d)
|
|
return d == other.d;
|
|
|
|
return *d == *(other.d);
|
|
}
|
|
|
|
bool Statement::isNull() const
|
|
{
|
|
return d->subjectID == 0;
|
|
}
|
|
|
|
ResourcePtr Statement::subject() const
|
|
{
|
|
const boost::shared_ptr<Model::ModelPrivate> m = d ? d->model.lock() : boost::shared_ptr<Model::ModelPrivate>();
|
|
return m ? m->resourceByID(d->subjectID) : ResourcePtr(new Resource);
|
|
}
|
|
|
|
PropertyPtr Statement::predicate() const
|
|
{
|
|
const boost::shared_ptr<Model::ModelPrivate> m = d ? d->model.lock() : boost::shared_ptr<Model::ModelPrivate>();
|
|
return m ? m->propertyByID(d->predicateID) : PropertyPtr( new Property() );
|
|
}
|
|
|
|
NodePtr Statement::object() const
|
|
{
|
|
const boost::shared_ptr<Model::ModelPrivate> m = d ? d->model.lock() : boost::shared_ptr<Model::ModelPrivate>();
|
|
return m ? m->nodeByID(d->objectID) : NodePtr( LiteralPtr( new Literal() ) );
|
|
}
|
|
|
|
ResourcePtr Statement::asResource() const
|
|
{
|
|
const boost::shared_ptr<Model::ModelPrivate> m = d ? d->model.lock() : boost::shared_ptr<Model::ModelPrivate>();
|
|
|
|
if (isNull() || !m || !m->nodeByID(d->objectID)->isResource())
|
|
return ResourcePtr(new Resource);
|
|
|
|
return m->resourceByID(d->objectID);
|
|
}
|
|
|
|
QString Statement::asString() const
|
|
{
|
|
if (isNull())
|
|
return QString();
|
|
|
|
const boost::shared_ptr<Model::ModelPrivate> m = d ? d->model.lock() : boost::shared_ptr<Model::ModelPrivate>();
|
|
return m ? m->nodeByID(d->objectID)->text() : QString();
|
|
}
|
|
|
|
} // namespace RDF
|
|
} // namespace Syndication
|