teststatementimpl.cpp.svn-base

很好用的网络封装库,不熟悉网络编程的人也可以使用。使用风格良好的标准c++编写。

//
// TestStatementImpl.cpp
//
// $Id: //poco/Main/Data/testsuite/src/TestStatementImpl.cpp#2 $
//
// 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.
//


#include "TestStatementImpl.h"


namespace Poco {
namespace Data {
namespace Test {


TestStatementImpl::TestStatementImpl()
{
}


TestStatementImpl::~TestStatementImpl()
{
}


void TestStatementImpl::compileImpl()
{
	// prepare binding
	_ptrBinder    = new Binder;
	_ptrExtractor = new Extractor;
	_ptrPrepare   = new Preparation;
}


bool TestStatementImpl::canBind() const
{
	return false;
}


void TestStatementImpl::bindImpl()
{
	// bind
	typedef Poco::Data::AbstractBindingVec Bindings;
	Bindings& binds = bindings();
	if (binds.empty())
		return;

	Bindings::iterator it    = binds.begin();
	Bindings::iterator itEnd = binds.end();
	std::size_t pos = 0;
	for (; it != itEnd && (*it)->canBind(); ++it)
	{
		(*it)->bind(pos);
		pos += (*it)->numOfColumnsHandled();
	}
}


Poco::UInt32 TestStatementImpl::columnsReturned() const
{
	return 0;
}


const MetaColumn& TestStatementImpl::metaColumn(Poco::UInt32 pos) const
{
	static MetaColumn c(pos, "", MetaColumn::FDT_BOOL, 0);
	return c;
}


bool TestStatementImpl::hasNext()
{
	return false;
}


void TestStatementImpl::next()
{
	Poco::Data::AbstractExtractionVec::iterator it    = extractions().begin();
	Poco::Data::AbstractExtractionVec::iterator itEnd = extractions().end();
	std::size_t pos = 0; 
	for (; it != itEnd; ++it)
	{
		(*it)->extract(pos);
		pos += (*it)->numOfColumnsHandled();
	}
}


} } } // namespace Poco::Data::Test