/usr/include/soprano/asyncresult.h is in libsoprano-dev 2.9.4+dfsg-5.
This file is owned by root:root, with mode 0o644.
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* This file is part of Soprano Project.
*
* Copyright (C) 2008-2009 Sebastian Trueg <trueg@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.
*/
#ifndef _SOPRANO_ASYNC_RESULT_H_
#define _SOPRANO_ASYNC_RESULT_H_
#include <QtCore/QObject>
#include <QtCore/QVariant>
#include "error.h"
#include "soprano_export.h"
namespace Soprano {
class StatementIterator;
class Node;
class NodeIterator;
class QueryResultIterator;
namespace Util {
class AsyncModel;
/**
* \class AsyncResult asyncmodel.h Soprano/Util/AsyncResult
*
* \brief A delayed result as returned by AsyncModel.
*
* \author Sebastian Trueg <trueg@kde.org>
*
* \since 2.1
*/
class SOPRANO_EXPORT AsyncResult : public QObject, public Error::ErrorCache
{
Q_OBJECT
Q_SIGNALS:
/**
* Emitted once the async operation is completed
* and the result can be read.
*
* The result will delete itself.
*/
void resultReady( Soprano::Util::AsyncResult* );
public:
/**
* Constructor method to ensure binary compatibility.
*
* \since 2.2
*/
static AsyncResult* createResult();
~AsyncResult();
/**
* The result of the async operation. Its type is dependent
* on the operation (for example Error::ErrorCode for
* AsyncModel::addStatementAsync or StatementIterator for
* AsyncModel::listStatementsAsync). Types may need to be
* registered with Q_DECLARE_METATYPE.
*
* Use Error::ErrorCache::lastError() to check
* for error details.
*
* This value is not ready before resultReady()
* has been emitted. <b>Do only use this in a slot connected to
* resultReady.</b>
*
* \sa errorCode, statementIterator, nodeIterator, queryResultIterator, node
*/
QVariant value() const { return m_result; }
/**
* Convinience method which converts value() into
* a Error::ErrorCode as returned for the following AsyncModel methods:
* \li AsyncModel::addStatementAsync
* \li AsyncModel::removeStatementAsync
* \li AsyncModel::removeAllStatementsAsync
*
* \sa value()
*
* \since 2.2
*/
Error::ErrorCode errorCode() const;
/**
* Convinience method which converts value() into
* a StatementIterator as returned AsyncModel::listStatementsAsync.
*
* \sa value()
*
* \since 2.2
*/
StatementIterator statementIterator() const;
/**
* Convinience method which converts value() into
* a StatementIterator as returned AsyncModel::listContextsAsync.
*
* \sa value()
*
* \since 2.2
*/
NodeIterator nodeIterator() const;
/**
* Convinience method which converts value() into
* a StatementIterator as returned AsyncModel::executeQueryAsync.
*
* \sa value()
*
* \since 2.2
*/
QueryResultIterator queryResultIterator() const;
/**
* Convinience method which converts value() into
* a StatementIterator as returned AsyncModel::createBlankNodeAsync.
*
* \sa value()
*
* \since 2.2
*/
Node node() const;
/**
* Sets the final result and emits the resultReady signal. This method
* should never be called by clients.
*/
void setResult( const QVariant& result, const Error::Error& error );
private Q_SLOTS:
void slotResultReady();
private:
AsyncResult();
QVariant m_result;
friend class AsyncModel;
};
}
}
#endif
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