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354 lines
11 KiB
C++
354 lines
11 KiB
C++
//
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// Extractor.h
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//
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// $Id: //poco/1.4/Data/MySQL/include/Poco/Data/MySQL/Extractor.h#1 $
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//
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// Library: Data
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// Package: MySQL
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// Module: Extractor
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//
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// Definition of the Extractor class.
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//
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// Copyright (c) 2008, Applied Informatics Software Engineering GmbH.
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// and Contributors.
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//
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// Permission is hereby granted, free of charge, to any person or organization
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// obtaining a copy of the software and accompanying documentation covered by
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// this license (the "Software") to use, reproduce, display, distribute,
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// execute, and transmit the Software, and to prepare derivative works of the
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// Software, and to permit third-parties to whom the Software is furnished to
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// do so, all subject to the following:
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//
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// The copyright notices in the Software and this entire statement, including
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// the above license grant, this restriction and the following disclaimer,
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// must be included in all copies of the Software, in whole or in part, and
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// all derivative works of the Software, unless such copies or derivative
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// works are solely in the form of machine-executable object code generated by
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// a source language processor.
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//
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// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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// FITNESS FOR A PARTICULAR PURPOSE, TITLE AND NON-INFRINGEMENT. IN NO EVENT
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// SHALL THE COPYRIGHT HOLDERS OR ANYONE DISTRIBUTING THE SOFTWARE BE LIABLE
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// FOR ANY DAMAGES OR OTHER LIABILITY, WHETHER IN CONTRACT, TORT OR OTHERWISE,
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// ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
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// DEALINGS IN THE SOFTWARE.
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//
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#ifndef Data_MySQL_Extractor_INCLUDED
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#define Data_MySQL_Extractor_INCLUDED
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#include "Poco/Data/MySQL/MySQL.h"
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#include "Poco/Data/MySQL/StatementExecutor.h"
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#include "Poco/Data/MySQL/ResultMetadata.h"
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#include "Poco/Data/AbstractExtractor.h"
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#include "Poco/Data/LOB.h"
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namespace Poco {
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namespace Dynamic {
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class Var;
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}
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namespace Data {
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namespace MySQL {
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class MySQL_API Extractor: public Poco::Data::AbstractExtractor
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/// Extracts and converts data values from the result row returned by MySQL.
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/// If NULL is received, the incoming val value is not changed and false is returned
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{
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public:
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Extractor(StatementExecutor& st, ResultMetadata& md);
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/// Creates the Extractor.
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virtual ~Extractor();
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/// Destroys the Extractor.
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virtual bool extract(std::size_t pos, Poco::Int8& val);
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/// Extracts an Int8.
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virtual bool extract(std::size_t pos, Poco::UInt8& val);
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/// Extracts an UInt8.
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virtual bool extract(std::size_t pos, Poco::Int16& val);
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/// Extracts an Int16.
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virtual bool extract(std::size_t pos, Poco::UInt16& val);
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/// Extracts an UInt16.
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virtual bool extract(std::size_t pos, Poco::Int32& val);
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/// Extracts an Int32.
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virtual bool extract(std::size_t pos, Poco::UInt32& val);
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/// Extracts an UInt32.
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virtual bool extract(std::size_t pos, Poco::Int64& val);
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/// Extracts an Int64.
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virtual bool extract(std::size_t pos, Poco::UInt64& val);
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/// Extracts an UInt64.
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#ifndef POCO_LONG_IS_64_BIT
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virtual bool extract(std::size_t pos, long& val);
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/// Extracts a long. Returns false if null was received.
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#endif
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virtual bool extract(std::size_t pos, bool& val);
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/// Extracts a boolean.
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virtual bool extract(std::size_t pos, float& val);
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/// Extracts a float.
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virtual bool extract(std::size_t pos, double& val);
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/// Extracts a double.
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virtual bool extract(std::size_t pos, char& val);
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/// Extracts a single character.
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virtual bool extract(std::size_t pos, std::string& val);
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/// Extracts a string.
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virtual bool extract(std::size_t pos, Poco::Data::BLOB& val);
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/// Extracts a BLOB.
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virtual bool extract(std::size_t pos, Poco::Data::CLOB& val);
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/// Extracts a CLOB.
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virtual bool extract(std::size_t pos, DateTime& val);
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/// Extracts a DateTime. Returns false if null was received.
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virtual bool extract(std::size_t pos, Date& val);
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/// Extracts a Date. Returns false if null was received.
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virtual bool extract(std::size_t pos, Time& val);
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/// Extracts a Time. Returns false if null was received.
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virtual bool extract(std::size_t pos, Any& val);
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/// Extracts an Any. Returns false if null was received.
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virtual bool extract(std::size_t pos, Dynamic::Var& val);
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/// Extracts a Dynamic::Var. Returns false if null was received.
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virtual bool isNull(std::size_t col, std::size_t row);
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/// Returns true if the value at [col,row] position is null.
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virtual void reset();
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/// Resets any information internally cached by the extractor.
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////////////
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// Not implemented extract functions
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////////////
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virtual bool extract(std::size_t pos, std::vector<Poco::Int8>& val);
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/// Extracts an Int8 vector.
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virtual bool extract(std::size_t pos, std::deque<Poco::Int8>& val);
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/// Extracts an Int8 deque.
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virtual bool extract(std::size_t pos, std::list<Poco::Int8>& val);
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/// Extracts an Int8 list.
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virtual bool extract(std::size_t pos, std::vector<Poco::UInt8>& val);
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/// Extracts an UInt8 vector.
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virtual bool extract(std::size_t pos, std::deque<Poco::UInt8>& val);
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/// Extracts an UInt8 deque.
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virtual bool extract(std::size_t pos, std::list<Poco::UInt8>& val);
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/// Extracts an UInt8 list.
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virtual bool extract(std::size_t pos, std::vector<Poco::Int16>& val);
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/// Extracts an Int16 vector.
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virtual bool extract(std::size_t pos, std::deque<Poco::Int16>& val);
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/// Extracts an Int16 deque.
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virtual bool extract(std::size_t pos, std::list<Poco::Int16>& val);
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/// Extracts an Int16 list.
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virtual bool extract(std::size_t pos, std::vector<Poco::UInt16>& val);
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/// Extracts an UInt16 vector.
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virtual bool extract(std::size_t pos, std::deque<Poco::UInt16>& val);
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/// Extracts an UInt16 deque.
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virtual bool extract(std::size_t pos, std::list<Poco::UInt16>& val);
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/// Extracts an UInt16 list.
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virtual bool extract(std::size_t pos, std::vector<Poco::Int32>& val);
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/// Extracts an Int32 vector.
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virtual bool extract(std::size_t pos, std::deque<Poco::Int32>& val);
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/// Extracts an Int32 deque.
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virtual bool extract(std::size_t pos, std::list<Poco::Int32>& val);
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/// Extracts an Int32 list.
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virtual bool extract(std::size_t pos, std::vector<Poco::UInt32>& val);
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/// Extracts an UInt32 vector.
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virtual bool extract(std::size_t pos, std::deque<Poco::UInt32>& val);
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/// Extracts an UInt32 deque.
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virtual bool extract(std::size_t pos, std::list<Poco::UInt32>& val);
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/// Extracts an UInt32 list.
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virtual bool extract(std::size_t pos, std::vector<Poco::Int64>& val);
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/// Extracts an Int64 vector.
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virtual bool extract(std::size_t pos, std::deque<Poco::Int64>& val);
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/// Extracts an Int64 deque.
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virtual bool extract(std::size_t pos, std::list<Poco::Int64>& val);
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/// Extracts an Int64 list.
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virtual bool extract(std::size_t pos, std::vector<Poco::UInt64>& val);
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/// Extracts an UInt64 vector.
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virtual bool extract(std::size_t pos, std::deque<Poco::UInt64>& val);
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/// Extracts an UInt64 deque.
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virtual bool extract(std::size_t pos, std::list<Poco::UInt64>& val);
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/// Extracts an UInt64 list.
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#ifndef POCO_LONG_IS_64_BIT
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virtual bool extract(std::size_t pos, std::vector<long>& val);
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/// Extracts a long vector.
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virtual bool extract(std::size_t pos, std::deque<long>& val);
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/// Extracts a long deque.
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virtual bool extract(std::size_t pos, std::list<long>& val);
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/// Extracts a long list.
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#endif
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virtual bool extract(std::size_t pos, std::vector<bool>& val);
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/// Extracts a boolean vector.
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virtual bool extract(std::size_t pos, std::deque<bool>& val);
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/// Extracts a boolean deque.
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virtual bool extract(std::size_t pos, std::list<bool>& val);
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/// Extracts a boolean list.
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virtual bool extract(std::size_t pos, std::vector<float>& val);
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/// Extracts a float vector.
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virtual bool extract(std::size_t pos, std::deque<float>& val);
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/// Extracts a float deque.
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virtual bool extract(std::size_t pos, std::list<float>& val);
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/// Extracts a float list.
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virtual bool extract(std::size_t pos, std::vector<double>& val);
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/// Extracts a double vector.
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virtual bool extract(std::size_t pos, std::deque<double>& val);
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/// Extracts a double deque.
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virtual bool extract(std::size_t pos, std::list<double>& val);
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/// Extracts a double list.
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virtual bool extract(std::size_t pos, std::vector<char>& val);
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/// Extracts a character vector.
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virtual bool extract(std::size_t pos, std::deque<char>& val);
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/// Extracts a character deque.
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virtual bool extract(std::size_t pos, std::list<char>& val);
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/// Extracts a character list.
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virtual bool extract(std::size_t pos, std::vector<std::string>& val);
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/// Extracts a string vector.
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virtual bool extract(std::size_t pos, std::deque<std::string>& val);
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/// Extracts a string deque.
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virtual bool extract(std::size_t pos, std::list<std::string>& val);
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/// Extracts a string list.
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virtual bool extract(std::size_t pos, std::vector<BLOB>& val);
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/// Extracts a BLOB vector.
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virtual bool extract(std::size_t pos, std::deque<BLOB>& val);
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/// Extracts a BLOB deque.
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virtual bool extract(std::size_t pos, std::list<BLOB>& val);
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/// Extracts a BLOB list.
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virtual bool extract(std::size_t pos, std::vector<CLOB>& val);
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/// Extracts a CLOB vector.
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virtual bool extract(std::size_t pos, std::deque<CLOB>& val);
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/// Extracts a CLOB deque.
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virtual bool extract(std::size_t pos, std::list<CLOB>& val);
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/// Extracts a CLOB list.
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virtual bool extract(std::size_t pos, std::vector<DateTime>& val);
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/// Extracts a DateTime vector.
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virtual bool extract(std::size_t pos, std::deque<DateTime>& val);
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/// Extracts a DateTime deque.
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virtual bool extract(std::size_t pos, std::list<DateTime>& val);
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/// Extracts a DateTime list.
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virtual bool extract(std::size_t pos, std::vector<Date>& val);
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/// Extracts a Date vector.
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virtual bool extract(std::size_t pos, std::deque<Date>& val);
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/// Extracts a Date deque.
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virtual bool extract(std::size_t pos, std::list<Date>& val);
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/// Extracts a Date list.
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virtual bool extract(std::size_t pos, std::vector<Time>& val);
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/// Extracts a Time vector.
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virtual bool extract(std::size_t pos, std::deque<Time>& val);
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/// Extracts a Time deque.
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virtual bool extract(std::size_t pos, std::list<Time>& val);
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/// Extracts a Time list.
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virtual bool extract(std::size_t pos, std::vector<Any>& val);
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/// Extracts an Any vector.
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virtual bool extract(std::size_t pos, std::deque<Any>& val);
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/// Extracts an Any deque.
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virtual bool extract(std::size_t pos, std::list<Any>& val);
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/// Extracts an Any list.
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virtual bool extract(std::size_t pos, std::vector<Dynamic::Var>& val);
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/// Extracts a Dynamic::Var vector.
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virtual bool extract(std::size_t pos, std::deque<Dynamic::Var>& val);
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/// Extracts a Dynamic::Var deque.
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virtual bool extract(std::size_t pos, std::list<Dynamic::Var>& val);
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/// Extracts a Dynamic::Var list.
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private:
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bool realExtractFixed(std::size_t pos, enum_field_types type, void* buffer, std::size_t length = 0);
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// Prevent VC8 warning "operator= could not be generated"
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Extractor& operator=(const Extractor&);
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private:
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StatementExecutor& _stmt;
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ResultMetadata& _metadata;
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};
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} } } // namespace Poco::Data::MySQL
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#endif // Data_MySQL_Extractor_INCLUDED
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