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/* This file is part of the KDE project
Copyright (C) 2006 Jaroslaw Staniek <js@iidea.pl>
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 KEXIDB_QUERYSCHEMAPARAMETER_H
#define KEXIDB_QUERYSCHEMAPARAMETER_H
#include "queryschema.h"
namespace KexiDB
{
//! @short A single parameter of a query schema
class KEXI_DB_EXPORT QuerySchemaParameter
{
public:
QuerySchemaParameter();
~QuerySchemaParameter();
QString debugString() const;
Field::Type type; //!< A datatype of the parameter
QString message; //!< A user-visible message that will be displayed to ask for value of the parameter
};
typedef QValueList<QuerySchemaParameter> QuerySchemaParameterList;
typedef QValueList<QuerySchemaParameter>::Iterator QuerySchemaParameterListIterator;
typedef QValueList<QuerySchemaParameter>::ConstIterator QuerySchemaParameterListConstIterator;
//! Shows debug information for \a list
KEXI_DB_EXPORT void debug(const QuerySchemaParameterList& list);
//! @short An iteratof for a list of values of query schema parameters providing
//! Allows to iterate over parameters and return QVariant value or well-formatted string.
//! The iterator is initially set to the last item because of the parser requirements
class KEXI_DB_EXPORT QuerySchemaParameterValueListIterator
{
public:
QuerySchemaParameterValueListIterator(const Driver& driver, const QValueList<QVariant>& params);
~QuerySchemaParameterValueListIterator();
//! \return previous value
QVariant getPreviousValue();
//! \return previous value as string formatted using driver's escaping
QString getPreviousValueAsString(Field::Type type);
protected:
class Private;
Private * const d;
};
} //namespace KexiDB
#endif
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