VTK  9.1.0
vtkQtSQLQuery.h
Go to the documentation of this file.
1 /*=========================================================================
2 
3  Program: Visualization Toolkit
4  Module: vtkQtSQLQuery.h
5 
6  Copyright (c) Ken Martin, Will Schroeder, Bill Lorensen
7  All rights reserved.
8  See Copyright.txt or http://www.kitware.com/Copyright.htm for details.
9 
10  This software is distributed WITHOUT ANY WARRANTY; without even
11  the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
12  PURPOSE. See the above copyright notice for more information.
13 
14 =========================================================================*/
15 /*-------------------------------------------------------------------------
16  Copyright 2008 Sandia Corporation.
17  Under the terms of Contract DE-AC04-94AL85000 with Sandia Corporation,
18  the U.S. Government retains certain rights in this software.
19 -------------------------------------------------------------------------*/
28 #ifndef vtkQtSQLQuery_h
29 #define vtkQtSQLQuery_h
30 
31 #include "vtkGUISupportQtSQLModule.h" // For export macro
32 #include "vtkSQLQuery.h"
33 
34 class vtkVariant;
35 class vtkQtSQLQueryInternals;
36 
37 class VTKGUISUPPORTQTSQL_EXPORT vtkQtSQLQuery : public vtkSQLQuery
38 {
39 public:
40  static vtkQtSQLQuery* New();
41  vtkTypeMacro(vtkQtSQLQuery, vtkSQLQuery);
42  void PrintSelf(ostream& os, vtkIndent indent) override;
43 
49  bool Execute() override;
50 
54  int GetNumberOfFields() override;
55 
59  const char* GetFieldName(int col) override;
60 
64  int GetFieldType(int col) override;
65 
69  bool NextRow() override;
70 
75 
79  bool HasError() override;
80 
84  const char* GetLastErrorText() override;
85 
86 protected:
88  ~vtkQtSQLQuery() override;
89 
90  vtkQtSQLQueryInternals* Internals;
91  friend class vtkQtSQLDatabase;
92 
93 private:
94  // Using the convenience function internally
95  vtkSetStringMacro(LastErrorText);
96 
97  char* LastErrorText;
98 
99  vtkQtSQLQuery(const vtkQtSQLQuery&) = delete;
100  void operator=(const vtkQtSQLQuery&) = delete;
101 };
102 
103 #endif // vtkQtSQLQuery_h
a simple class to control print indentation
Definition: vtkIndent.h:34
maintains a connection to an sql database
friend class vtkQtSQLQuery
query class associated with vtkQtSQLDatabase
Definition: vtkQtSQLQuery.h:38
const char * GetLastErrorText() override
Get the last error text from the query.
vtkVariant DataValue(vtkIdType c) override
Return data in current row, field c.
~vtkQtSQLQuery() override
const char * GetFieldName(int col) override
Return the name of the specified query field.
static vtkQtSQLQuery * New()
void PrintSelf(ostream &os, vtkIndent indent) override
Methods invoked by print to print information about the object including superclasses.
int GetNumberOfFields() override
The number of fields in the query result.
int GetFieldType(int col) override
Return the type of the specified query field, as defined in vtkType.h.
vtkQtSQLQueryInternals * Internals
Definition: vtkQtSQLQuery.h:90
bool Execute() override
Execute the query.
bool HasError() override
Returns true if an error is set, otherwise false.
bool NextRow() override
Advance row, return false if past end.
executes an sql query and retrieves results
Definition: vtkSQLQuery.h:69
A atomic type representing the union of many types.
Definition: vtkVariant.h:66
int vtkIdType
Definition: vtkType.h:332