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/*=========================================================================
Program: Visualization Toolkit
Module: vtkQtSQLQuery.h
Copyright (c) Ken Martin, Will Schroeder, Bill Lorensen
All rights reserved.
See Copyright.txt or http://www.kitware.com/Copyright.htm for details.
This software is distributed WITHOUT ANY WARRANTY; without even
the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
PURPOSE. See the above copyright notice for more information.
=========================================================================*/
/*-------------------------------------------------------------------------
Copyright 2008 Sandia Corporation.
Under the terms of Contract DE-AC04-94AL85000 with Sandia Corporation,
the U.S. Government retains certain rights in this software.
-------------------------------------------------------------------------*/
/**
* @class vtkQtSQLQuery
* @brief query class associated with vtkQtSQLDatabase
*
*
* Implements vtkSQLQuery using an underlying QSQLQuery.
*/
#ifndef vtkQtSQLQuery_h
#define vtkQtSQLQuery_h
// Check for Qt SQL module before defining this class.
#include <qglobal.h> // Needed to check if SQL is available
#if (QT_EDITION & QT_MODULE_SQL)
#include "vtkGUISupportQtSQLModule.h" // For export macro
#include "vtkSQLQuery.h"
class vtkVariant;
class vtkQtSQLQueryInternals;
class VTKGUISUPPORTQTSQL_EXPORT vtkQtSQLQuery : public vtkSQLQuery
{
public:
static vtkQtSQLQuery* New();
vtkTypeMacro(vtkQtSQLQuery, vtkSQLQuery);
void PrintSelf(ostream& os, vtkIndent indent) VTK_OVERRIDE;
/**
* Execute the query. This must be performed
* before any field name or data access functions
* are used.
*/
bool Execute() VTK_OVERRIDE;
/**
* The number of fields in the query result.
*/
int GetNumberOfFields() VTK_OVERRIDE;
/**
* Return the name of the specified query field.
*/
const char* GetFieldName(int col) VTK_OVERRIDE;
/**
* Return the type of the specified query field, as defined in vtkType.h.
*/
int GetFieldType(int col) VTK_OVERRIDE;
/**
* Advance row, return false if past end.
*/
bool NextRow() VTK_OVERRIDE;
/**
* Return data in current row, field c
*/
vtkVariant DataValue(vtkIdType c) VTK_OVERRIDE;
/**
* Returns true if an error is set, otherwise false.
*/
bool HasError() VTK_OVERRIDE;
/**
* Get the last error text from the query
*/
const char* GetLastErrorText() VTK_OVERRIDE;
protected:
vtkQtSQLQuery();
~vtkQtSQLQuery();
vtkQtSQLQueryInternals* Internals;
friend class vtkQtSQLDatabase;
private:
// Using the convenience function internally
vtkSetStringMacro(LastErrorText);
char* LastErrorText;
vtkQtSQLQuery(const vtkQtSQLQuery &) VTK_DELETE_FUNCTION;
void operator=(const vtkQtSQLQuery &) VTK_DELETE_FUNCTION;
};
#endif // (QT_EDITION & QT_MODULE_SQL)
#endif // vtkQtSQLQuery_h
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