kexi

preparedstatement.h

00001 /* This file is part of the KDE project
00002    Copyright (C) 2005 Jaroslaw Staniek <js@iidea.pl>
00003 
00004    This library is free software; you can redistribute it and/or
00005    modify it under the terms of the GNU Library General Public
00006    License as published by the Free Software Foundation; either
00007    version 2 of the License, or (at your option) any later version.
00008 
00009    This library is distributed in the hope that it will be useful,
00010    but WITHOUT ANY WARRANTY; without even the implied warranty of
00011    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
00012    Library General Public License for more details.
00013 
00014    You should have received a copy of the GNU Library General Public License
00015    along with this library; see the file COPYING.LIB.  If not, write to
00016    the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
00017  * Boston, MA 02110-1301, USA.
00018 */
00019 
00020 #ifndef KEXIDB_PREPAREDSTATEMENT_H
00021 #define KEXIDB_PREPAREDSTATEMENT_H
00022 
00023 #include <qvariant.h>
00024 #include <ksharedptr.h>
00025 
00026 #include "field.h"
00027 
00028 namespace KexiDB {
00029 
00030 class ConnectionInternal;
00031 class TableSchema;
00032 class FieldList;
00033 
00073 class KEXI_DB_EXPORT PreparedStatement : public KShared
00074 {
00075     public:
00076         typedef KSharedPtr<PreparedStatement> Ptr;
00077 
00079         enum StatementType {
00080             SelectStatement, 
00081             InsertStatement  
00082         };
00083 
00085         PreparedStatement(StatementType type, ConnectionInternal& conn, FieldList& fields,
00086             const QStringList& where = QStringList());
00087 
00088         virtual ~PreparedStatement();
00089 
00091         PreparedStatement& operator<< ( const QVariant& value );
00092 
00094         void clearArguments();
00095 
00102         virtual bool execute() = 0;
00103 
00104     protected:
00106         QCString generateStatementString();
00107 
00108         StatementType m_type;
00109         FieldList *m_fields;
00110         QValueList<QVariant> m_args;
00111         QStringList* m_where;
00112         Field::List* m_whereFields;
00113 };
00114 
00115 } //namespace KexiDB
00116 
00117 #endif
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