Logo Search packages:      
Sourcecode: poco version File versions

MetaColumn.h

//
// MetaColumn.h
//
// $Id: //poco/1.3/Data/include/Poco/Data/MetaColumn.h#2 $
//
// Library: Data
// Package: DataCore
// Module:  MetaColumn
//
// Definition of the MetaColumn class.
//
// 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.
//


#ifndef Data_MetaColumn_INCLUDED
#define Data_MetaColumn_INCLUDED


#include "Poco/Data/Data.h"
#include <cstddef>


namespace Poco {
namespace Data {


00051 class Data_API MetaColumn
      /// MetaColumn class contains column metadata information.
{
public:
      enum ColumnDataType
      {
            FDT_BOOL,
            FDT_INT8,
            FDT_UINT8,
            FDT_INT16,
            FDT_UINT16,
            FDT_INT32,
            FDT_UINT32,
            FDT_INT64,
            FDT_UINT64,
            FDT_FLOAT,
            FDT_DOUBLE,
            FDT_STRING,
            FDT_BLOB,
            FDT_UNKNOWN
      };

      MetaColumn();
            /// Creates the MetaColumn.

      explicit MetaColumn(std::size_t position,
            const std::string& name = "",
            ColumnDataType type = FDT_UNKNOWN,
            std::size_t length = 0,
            std::size_t precision = 0,
            bool nullable = false);
            /// Creates the MetaColumn.

      virtual ~MetaColumn();
            /// Destroys the MetaColumn.

      const std::string& name() const;
            /// Returns column name.

      std::size_t length() const;
            /// Returns column maximum length.

      std::size_t precision() const;
            /// Returns column precision.
            /// Valid for floating point fields only
            /// (zero for other data types).

      std::size_t position() const;
            /// Returns column position.

      ColumnDataType type() const;
            /// Returns column type.

      bool isNullable() const;
            /// Returns true if column allows null values, false otherwise.

protected:
      void setName(const std::string& name);
            /// Sets the column name.

      void setLength(std::size_t length);
            /// Sets the column length.

      void setPrecision(std::size_t precision);
            /// Sets the column precision.

      void setType(ColumnDataType type);
            /// Sets the column data type.

      void setNullable(bool nullable);
            /// Sets the column nullability.

private:
00124       std::string     _name;
      std::size_t     _length;
      std::size_t     _precision;
      std::size_t     _position;
      ColumnDataType  _type;
      bool            _nullable;
};


///
/// inlines
///
00136 inline const std::string& MetaColumn::name() const
{
      return _name;
}


00142 inline std::size_t MetaColumn::length() const
{
      return _length;
}


00148 inline std::size_t MetaColumn::precision() const
{
      return _precision;
}


00154 inline std::size_t MetaColumn::position() const
{
      return _position;
}


00160 inline MetaColumn::ColumnDataType MetaColumn::type() const
{
      return _type;
}


00166 inline bool MetaColumn::isNullable() const
{
      return _nullable;
}


00172 inline void MetaColumn::setName(const std::string& name)
{
      _name = name;
}


00178 inline void MetaColumn::setLength(std::size_t length)
{
      _length = length;
}


00184 inline void MetaColumn::setPrecision(std::size_t precision)
{
      _precision = precision;
}


00190 inline void MetaColumn::setType(ColumnDataType type)
{
      _type = type;
}


00196 inline void MetaColumn::setNullable(bool nullable)
{
      _nullable = nullable;
}


} } // namespace Poco::Data


#endif // Data_MetaColumn_INCLUDED

Generated by  Doxygen 1.6.0   Back to index