/usr/include/Poco/Data/SQLite/SQLiteStatementImpl.h is in libpoco-dev 1.3.6p1-4.
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// SQLiteStatementImpl.h
//
// $Id: //poco/1.3/Data/SQLite/include/Poco/Data/SQLite/SQLiteStatementImpl.h#4 $
//
// Library: Data/SQLite
// Package: SQLite
// Module: SQLiteStatementImpl
//
// Definition of the SQLiteStatementImpl class.
//
// Copyright (c) 2006, Applied Informatics Software Engineering GmbH.
// and Contributors.
//
// Permission is hereby granted, free of charge, to any person or organization
// obtaining a copy of the software and accompanying documentation covered by
// this license (the "Software") to use, reproduce, display, distribute,
// execute, and transmit the Software, and to prepare derivative works of the
// Software, and to permit third-parties to whom the Software is furnished to
// do so, all subject to the following:
//
// The copyright notices in the Software and this entire statement, including
// the above license grant, this restriction and the following disclaimer,
// must be included in all copies of the Software, in whole or in part, and
// all derivative works of the Software, unless such copies or derivative
// works are solely in the form of machine-executable object code generated by
// a source language processor.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
// FITNESS FOR A PARTICULAR PURPOSE, TITLE AND NON-INFRINGEMENT. IN NO EVENT
// SHALL THE COPYRIGHT HOLDERS OR ANYONE DISTRIBUTING THE SOFTWARE BE LIABLE
// FOR ANY DAMAGES OR OTHER LIABILITY, WHETHER IN CONTRACT, TORT OR OTHERWISE,
// ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
// DEALINGS IN THE SOFTWARE.
//
#ifndef DataConnectors_SQLite_SQLiteStatementImpl_INCLUDED
#define DataConnectors_SQLite_SQLiteStatementImpl_INCLUDED
#include "Poco/Data/SQLite/SQLite.h"
#include "Poco/Data/SQLite/Binder.h"
#include "Poco/Data/SQLite/Extractor.h"
#include "Poco/Data/StatementImpl.h"
#include "Poco/Data/MetaColumn.h"
#include "Poco/SharedPtr.h"
#include "Poco/Random.h"
struct sqlite3;
struct sqlite3_stmt;
namespace Poco {
namespace Data {
namespace SQLite {
class SQLite_API SQLiteStatementImpl: public Poco::Data::StatementImpl
/// Implements statement functionality needed for SQLite
{
public:
SQLiteStatementImpl(sqlite3* pDB, int maxRetryAttempts, int minRetrySleep, int maxRetrySleep);
/// Creates the SQLiteStatementImpl.
~SQLiteStatementImpl();
/// Destroys the SQLiteStatementImpl.
protected:
Poco::UInt32 columnsReturned() const;
/// Returns number of columns returned by query.
const MetaColumn& metaColumn(Poco::UInt32 pos) const;
/// Returns column meta data.
bool hasNext();
/// Returns true if a call to next() will return data.
void next();
/// Retrieves the next row from the resultset.
/// Will throw, if the resultset is empty.
bool canBind() const;
/// Returns true if a valid statement is set and we can bind.
void compileImpl();
/// Compiles the statement, doesn't bind yet, retries if
/// the database is locked.
void compileImplImpl();
/// Compiles the statement, doesn't bind yet
void bindImpl();
/// Binds parameters
AbstractExtractor& extractor();
/// Returns the concrete extractor used by the statement.
AbstractBinder& binder();
/// Returns the concrete binder used by the statement.
private:
void clear();
/// Removes the _pStmt
void sleep();
/// Sleep for a random time (between retry attempts).
typedef Poco::Data::AbstractBindingVec Bindings;
typedef Poco::Data::AbstractExtractionVec Extractions;
sqlite3* _pDB;
sqlite3_stmt* _pStmt;
int _maxRetryAttempts;
int _minRetrySleep;
int _maxRetrySleep;
bool _stepCalled;
int _nextResponse;
Poco::SharedPtr<Binder> _pBinder;
Poco::SharedPtr<Extractor> _pExtractor;
std::vector<Poco::Data::MetaColumn> _columns;
Poco::Random _rnd;
};
//
// inlines
//
inline AbstractExtractor& SQLiteStatementImpl::extractor()
{
return *_pExtractor;
}
inline AbstractBinder& SQLiteStatementImpl::binder()
{
return *_pBinder;
}
} } } // namespace Poco::Data::SQLite
#endif // DataConnectors_SQLite_SQLiteStatementImpl_INCLUDED
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