/*
 * This file is part of Soprano Project
 *
 * Copyright (C) 2008-2012 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_VIRTUOSO_MODEL_H_
#define _SOPRANO_VIRTUOSO_MODEL_H_

#include "storagemodel.h"
#include "virtuosocontroller.h"

namespace Soprano {
    namespace ODBC {
        class ConnectionPool;
    }

    class VirtuosoModelPrivate;
    namespace Virtuoso {
        class BackendPlugin;
    }

    class VirtuosoModel : public StorageModel
    {
        Q_OBJECT

    public:
        /**
         * \param connection The base connection used for non-transaction requests
         */
        VirtuosoModel( const QString& virtuosoVersion, ODBC::ConnectionPool* connectionPool, const Backend* );
        ~VirtuosoModel();

        Error::ErrorCode addStatement( const Statement &statement );
        NodeIterator listContexts() const;
        bool containsStatement( const Statement& statement ) const;
        bool containsAnyStatement( const Statement &statement ) const;
        Soprano::StatementIterator listStatements( const Statement &partial ) const;
        Error::ErrorCode removeStatement( const Statement &statement );
        Error::ErrorCode removeAllStatements( const Statement &statement );
        int statementCount() const;
        Node createBlankNode();
        Soprano::QueryResultIterator executeQuery( const QString &query,
                                                   Query::QueryLanguage language = Query::QueryLanguageSparql,
                                                   const QString& userQueryLanguage = QString() ) const;

    public Q_SLOTS:
        /// a public slot since it is connected from the backend on creation time
        void slotVirtuosoStopped(Soprano::VirtuosoController::ExitStatus status);

    Q_SIGNALS:
        /// \param normalExit \p true if the shutdown of Virtuoso was initialized by deleting the model
        void virtuosoStopped(bool normalExit);

    private:
        VirtuosoModelPrivate* const d;

        friend class VirtuosoModelPrivate;
        friend class VirtuosoBackend;
        friend class Virtuoso::BackendPlugin;
    };
}

#endif
