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RecordSet.cpp

//
// RecordSet.cpp
//
// $Id: //poco/Main/Data/src/RecordSet.cpp#2 $
//
// Library: Data
// Package: DataCore
// Module:  RecordSet
//
// 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 "Poco/Data/RecordSet.h"


namespace Poco {
namespace Data {


RecordSet::RecordSet(const Statement& rStatement): 
      Statement(rStatement),
      _currentRow(0)
{
}


00051 RecordSet::~RecordSet()
{
}


DynamicAny RecordSet::value(std::size_t col, std::size_t row) const
{
      switch (columnType(col))
      {
            case MetaColumn::FDT_BOOL:
            case MetaColumn::FDT_INT8:   return value<Int8>(col, row);
            case MetaColumn::FDT_UINT8:  return value<UInt8>(col, row);
            case MetaColumn::FDT_INT16:  return value<Int16>(col, row);
            case MetaColumn::FDT_UINT16: return value<UInt16>(col, row);
            case MetaColumn::FDT_INT32:  return value<Int32>(col, row);
            case MetaColumn::FDT_UINT32: return value<UInt32>(col, row);
            case MetaColumn::FDT_INT64:  return value<Int64>(col, row);
            case MetaColumn::FDT_UINT64: return value<UInt64>(col, row);
            case MetaColumn::FDT_FLOAT:  return value<float>(col, row);
            case MetaColumn::FDT_DOUBLE: return value<double>(col, row);
            case MetaColumn::FDT_STRING: return value<std::string>(col, row);
            case MetaColumn::FDT_BLOB:   return value<BLOB>(col, row);
            default:
                  throw Poco::InvalidArgumentException("Data type not supported.");
      }
}


DynamicAny RecordSet::value(const std::string& name, std::size_t row) const
{
      switch (columnType(name))
      {
            case MetaColumn::FDT_BOOL:
            case MetaColumn::FDT_INT8:   return value<Int8>(name, row);        
            case MetaColumn::FDT_UINT8:  return value<UInt8>(name, row);       
            case MetaColumn::FDT_INT16:  return value<Int16>(name, row);       
            case MetaColumn::FDT_UINT16: return value<UInt16>(name, row);      
            case MetaColumn::FDT_INT32:  return value<Int32>(name, row);       
            case MetaColumn::FDT_UINT32: return value<UInt32>(name, row);      
            case MetaColumn::FDT_INT64:  return value<Int64>(name, row);       
            case MetaColumn::FDT_UINT64: return value<UInt64>(name, row);      
            case MetaColumn::FDT_FLOAT:  return value<float>(name, row);       
            case MetaColumn::FDT_DOUBLE: return value<double>(name, row);      
            case MetaColumn::FDT_STRING: return value<std::string>(name, row); 
            case MetaColumn::FDT_BLOB:   return value<BLOB>(name, row);        
            default:
                  throw Poco::InvalidArgumentException("Data type not supported.");
      }
}


00102 bool RecordSet::moveFirst()
{
      if (rowCount() > 0)
      {
            _currentRow = 0;
            return true;
      }
      else return false;
}


00113 bool RecordSet::moveNext()
{
      if (_currentRow >= rowCount() - 1) return false;
      ++_currentRow;
      return true;
}


00121 bool RecordSet::movePrevious()
{
      if (0 == _currentRow) return false;
      --_currentRow;
      return true;
}


00129 bool RecordSet::moveLast()
{
      if (rowCount() > 0)
      {
            _currentRow = rowCount() - 1;
            return true;
      }
      else return false;
}


} } // namespace Poco::Data

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