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// SPDX-FileCopyrightText: Copyright (c) Ken Martin, Will Schroeder, Bill Lorensen
// SPDX-FileCopyrightText: Copyright 2008 Sandia Corporation
// SPDX-License-Identifier: LicenseRef-BSD-3-Clause-Sandia-USGov
/**
* @class vtkPostgreSQLDatabasePrivate
* @brief internal details of a connection to a PostgreSQL database
*
*
*
* This class does two things. First, it holds the (pointer to the)
* PGconn struct that represents an actual database connection. Second,
* it holds a map from Postgres data types as they exist in the database
* to VTK data types.
*
* You should never have to deal with this class outside of
* vtkPostgreSQLDatabase and vtkPostgreSQLQuery.
*/
#ifndef vtkPostgreSQLDatabasePrivate_h
#define vtkPostgreSQLDatabasePrivate_h
#include "vtkTimeStamp.h"
#include "vtkType.h"
#include <libpq-fe.h>
#include <map>
VTK_ABI_NAMESPACE_BEGIN
class vtkPostgreSQLDatabasePrivate
{
public:
vtkPostgreSQLDatabasePrivate() { this->Connection = nullptr; }
/**
* Destroy the database connection. Any uncommitted transaction will be aborted.
*/
virtual ~vtkPostgreSQLDatabasePrivate()
{
if (this->Connection)
{
PQfinish(this->Connection);
}
}
// Given a Postgres column type OID, return a VTK array type (see vtkType.h).
int GetVTKTypeFromOID(Oid pgtype)
{
std::map<Oid, int>::const_iterator it = this->DataTypeMap.find(pgtype);
if (it == this->DataTypeMap.end())
{
return VTK_STRING;
}
return it->second;
}
// This is the actual database connection. It will be nullptr if no
// connection is open.
PGconn* Connection;
// Map Postgres column types to VTK types.
std::map<Oid, int> DataTypeMap;
};
VTK_ABI_NAMESPACE_END
#endif // vtkPostgreSQLDatabasePrivate_h
// VTK-HeaderTest-Exclude: vtkPostgreSQLDatabasePrivate.h
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