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https://github.com/VCMP-SqMod/SqMod.git
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365 lines
11 KiB
C++
365 lines
11 KiB
C++
//
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// AbstractExtractor.h
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//
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// Library: Data
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// Package: DataCore
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// Module: AbstractExtractor
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//
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// Definition of the AbstractExtractor class.
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//
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// Copyright (c) 2006, Applied Informatics Software Engineering GmbH.
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// and Contributors.
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//
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// SPDX-License-Identifier: BSL-1.0
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//
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#ifndef Data_AbstractExtractor_INCLUDED
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#define Data_AbstractExtractor_INCLUDED
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#include "Poco/Data/Data.h"
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#include "Poco/Data/Constants.h"
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#include "Poco/Data/LOB.h"
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#include "Poco/UUID.h"
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#include "Poco/UTFString.h"
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#include <vector>
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#include <deque>
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#include <list>
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#include <string>
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#include <cstddef>
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namespace Poco {
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class DateTime;
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class Any;
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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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class Date;
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class Time;
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class Data_API AbstractExtractor
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/// Interface used to extract data from a single result row.
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/// If an extractor receives null it is not allowed to change val!
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{
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public:
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using Ptr = SharedPtr<AbstractExtractor>;
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AbstractExtractor();
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/// Creates the AbstractExtractor.
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virtual ~AbstractExtractor();
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/// Destroys the AbstractExtractor.
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virtual bool extract(std::size_t pos, Poco::Int8& val) = 0;
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/// Extracts an Int8. Returns false if null was received.
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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, Poco::UInt8& val) = 0;
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/// Extracts an UInt8. Returns false if null was received.
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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, Poco::Int16& val) = 0;
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/// Extracts an Int16. Returns false if null was received.
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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, Poco::UInt16& val) = 0;
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/// Extracts an UInt16. Returns false if null was received.
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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, Poco::Int32& val) = 0;
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/// Extracts an Int32. Returns false if null was received.
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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, Poco::UInt32& val) = 0;
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/// Extracts an UInt32. Returns false if null was received.
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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, Poco::Int64& val) = 0;
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/// Extracts an Int64. Returns false if null was received.
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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, Poco::UInt64& val) = 0;
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/// Extracts an UInt64. Returns false if null was received.
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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_INT64_IS_LONG
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virtual bool extract(std::size_t pos, long& val) = 0;
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/// Extracts a long. Returns false if null was received.
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virtual bool extract(std::size_t pos, unsigned long& val) = 0;
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/// Extracts an unsigned long. Returns false if null was received.
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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, bool& val) = 0;
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/// Extracts a boolean. Returns false if null was received.
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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, float& val) = 0;
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/// Extracts a float. Returns false if null was received.
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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, double& val) = 0;
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/// Extracts a double. Returns false if null was received.
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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, char& val) = 0;
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/// Extracts a single character. Returns false if null was received.
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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::string& val) = 0;
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/// Extracts a string. Returns false if null was received.
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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, UTF16String& val);
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/// Extracts a UTF16String. Returns false if null was received.
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virtual bool extract(std::size_t pos, std::vector<UTF16String>& val);
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/// Extracts a UTF16String vector.
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virtual bool extract(std::size_t pos, std::deque<UTF16String>& val);
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/// Extracts a UTF16String deque.
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virtual bool extract(std::size_t pos, std::list<UTF16String>& val);
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/// Extracts a UTF16String list.
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virtual bool extract(std::size_t pos, BLOB& val) = 0;
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/// Extracts a BLOB. Returns false if null was received.
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virtual bool extract(std::size_t pos, CLOB& val) = 0;
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/// Extracts a CLOB. Returns false if null was received.
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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, DateTime& val) = 0;
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/// Extracts a DateTime. Returns false if null was received.
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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, Date& val) = 0;
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/// Extracts a Date. Returns false if null was received.
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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, Time& val) = 0;
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/// Extracts a Time. Returns false if null was received.
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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, UUID& val) = 0;
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/// Extracts a UUID. Returns false if null was received.
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virtual bool extract(std::size_t pos, std::vector<UUID>& val);
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/// Extracts a UUID vector.
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virtual bool extract(std::size_t pos, std::deque<UUID>& val);
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/// Extracts a UUID deque.
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virtual bool extract(std::size_t pos, std::list<UUID>& val);
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/// Extracts a UUID list.
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virtual bool extract(std::size_t pos, Any& val) = 0;
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/// Extracts an Any. Returns false if null was received.
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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, Poco::Dynamic::Var& val) = 0;
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/// Extracts a Var. Returns false if null was received.
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virtual bool extract(std::size_t pos, std::vector<Poco::Dynamic::Var>& val);
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/// Extracts a Var vector.
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virtual bool extract(std::size_t pos, std::deque<Poco::Dynamic::Var>& val);
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/// Extracts a Var deque.
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virtual bool extract(std::size_t pos, std::list<Poco::Dynamic::Var>& val);
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/// Extracts a Var list.
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virtual bool isNull(std::size_t col, std::size_t row = POCO_DATA_INVALID_ROW) = 0;
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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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///
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/// inlines
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///
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inline void AbstractExtractor::reset()
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{
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//default no-op
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}
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} } // namespace Poco::Data
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#endif // Data_AbstractExtractor_INCLUDED
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