dox/IO/vtkRowQuery.h

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/*=========================================================================

  Program:   Visualization Toolkit
  Module:    vtkRowQuery.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.
-------------------------------------------------------------------------*/
#ifndef __vtkRowQuery_h
#define __vtkRowQuery_h

#include "vtkObject.h"

class vtkVariant;
class vtkVariantArray;

class VTK_IO_EXPORT vtkRowQuery : public vtkObject
{
public:
  vtkTypeMacro(vtkRowQuery, vtkObject);
  void PrintSelf(ostream& os, vtkIndent indent);

  virtual bool Execute() = 0;

  virtual int GetNumberOfFields() = 0;

  virtual const char* GetFieldName(int i) = 0;

  virtual int GetFieldType(int i) = 0;

  int GetFieldIndex(char* name);

  virtual bool NextRow() = 0;

  virtual bool IsActive() = 0;

  bool NextRow(vtkVariantArray* rowArray);

  virtual vtkVariant DataValue(vtkIdType c) = 0;

  virtual bool HasError() = 0;
  
  virtual const char* GetLastErrorText() = 0;


  vtkSetMacro(CaseSensitiveFieldNames, bool);
  vtkGetMacro(CaseSensitiveFieldNames, bool);
  vtkBooleanMacro(CaseSensitiveFieldNames, bool);

protected:
  vtkRowQuery();
  ~vtkRowQuery();
  bool CaseSensitiveFieldNames;
private:
  vtkRowQuery(const vtkRowQuery &); // Not implemented.
  void operator=(const vtkRowQuery &); // Not implemented.
};

#endif // __vtkRowQuery_h