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93 lines
2.5 KiB
C++
93 lines
2.5 KiB
C++
//
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// DynamicLOB.cpp
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//
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// $Id: //poco/Main/Data/src/DynamicLOB.cpp#1 $
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//
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// Library: Data
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// Package: DataCore
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// Module: DynamicLOB
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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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// 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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#ifdef __GNUC__
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// TODO: determine g++ version able to do the right thing without these specializations
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#include "Poco/Data/DynamicLOB.h"
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#include "Poco/Data/LOB.h"
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#include "Poco/Dynamic/Var.h"
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namespace Poco {
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namespace Dynamic {
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using Poco::Data::CLOB;
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using Poco::Data::BLOB;
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template <>
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Var::operator CLOB () const
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{
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if (!_pHolder)
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throw InvalidAccessException("Can not convert empty value.");
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if (typeid(CLOB) == _pHolder->type())
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return extract<CLOB>();
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else
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{
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std::string result;
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_pHolder->convert(result);
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return CLOB(result);
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}
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}
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template <>
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Var::operator BLOB () const
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{
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if (!_pHolder)
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throw InvalidAccessException("Can not convert empty value.");
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if (typeid(BLOB) == _pHolder->type())
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return extract<BLOB>();
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else
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{
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std::string result;
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_pHolder->convert(result);
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return BLOB(reinterpret_cast<const unsigned char*>(result.data()),
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result.size());
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}
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}
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} } // namespace Poco::Data
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#endif // __GNUC__
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