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118 lines
3.6 KiB
C++
118 lines
3.6 KiB
C++
//
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// MySQLstatementImpl.h
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//
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// $Id: //poco/1.3/Data/MySQL/include/Poco/Data/MySQL/MySQLStatementImpl.h#1 $
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//
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// Library: Data
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// Package: MySQL
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// Module: MySQLstatementImpl
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//
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// Definition of the MySQLStatementImpl 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_MySQLStatementImpl_INCLUDED
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#define Data_MySQL_MySQLStatementImpl_INCLUDED
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#include "Poco/Data/MySQL/MySQL.h"
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#include "Poco/Data/MySQL/SessionImpl.h"
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#include "Poco/Data/MySQL/Binder.h"
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#include "Poco/Data/MySQL/Extractor.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/StatementImpl.h"
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#include "Poco/SharedPtr.h"
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#include "Poco/Format.h"
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namespace Poco {
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namespace Data {
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namespace MySQL {
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class MySQL_API MySQLStatementImpl: public Poco::Data::StatementImpl
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/// Implements statement functionality needed for MySQL
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{
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public:
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MySQLStatementImpl(SessionHandle& h);
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/// Creates the MySQLStatementImpl.
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~MySQLStatementImpl();
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/// Destroys the MySQLStatementImpl.
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protected:
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virtual Poco::UInt32 columnsReturned() const;
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/// Returns number of columns returned by query.
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virtual const MetaColumn& metaColumn(Poco::UInt32 pos) const;
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/// Returns column meta data.
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virtual bool hasNext();
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/// Returns true if a call to next() will return data.
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virtual void next();
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/// Retrieves the next row from the resultset.
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/// Will throw, if the resultset is empty.
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virtual bool canBind() const;
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/// Returns true if a valid statement is set and we can bind.
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virtual void compileImpl();
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/// Compiles the statement, doesn't bind yet
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virtual void bindImpl();
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/// Binds parameters
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virtual AbstractExtractor& extractor();
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/// Returns the concrete extractor used by the statement.
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virtual AbstractBinder& binder();
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/// Returns the concrete binder used by the statement.
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private:
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enum
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{
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NEXT_DONTKNOW,
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NEXT_TRUE,
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NEXT_FALSE
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};
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StatementExecutor _stmt;
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ResultMetadata _metadata;
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Binder _binder;
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Extractor _extractor;
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int _hasNext;
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};
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} } } // namespace Poco::Data::MySQL
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#endif // Data_MySQL_MySQLStatementImpl_INCLUDED
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