mapnik/include/mapnik/attribute_descriptor.hpp

/*****************************************************************************
 * 
 * This file is part of Mapnik (c++ mapping toolkit)
 *
 * Copyright (C) 2006 Artem Pavlenko
 *
 * This library is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Lesser General Public
 * License as published by the Free Software Foundation; either
 * version 2.1 of the License, or (at your option) any later version.
 *
 * This library is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 * Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public
 * License along with this library; if not, write to the Free Software
 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
 *
 *****************************************************************************/

//$Id$

#ifndef ATTRIBUTE_DESCRIPTOR
#define ATTRIBUTE_DESCRIPTOR

#include <string>

namespace mapnik {

enum eAttributeType {
    Integer=1,
    Float  =2,
    Double =3,
    String =4,
    Geometry=5,
    Object=6 
};

class attribute_descriptor
{
public:
    attribute_descriptor(std::string const& name,unsigned type,
                         bool primary_key=false,
                         int size=-1,
                         int precision=-1)
        : name_(name),
          type_(type),
          primary_key_(primary_key),
          size_(size),
          precision_(precision) {}
              
    attribute_descriptor(attribute_descriptor const& other)
        : name_(other.name_),
          type_(other.type_),
          primary_key_(other.primary_key_),
          size_(other.size_),
          precision_(other.precision_) {}

    attribute_descriptor& operator=(attribute_descriptor const& other)
    {
        if (this == &other)
            return *this;           
        name_=other.name_;
        type_=other.type_;
        primary_key_=other.primary_key_;
        size_=other.size_;
        precision_=other.precision_;
        return *this;
    }

    std::string const& get_name() const
    {
        return name_;
    }

    unsigned get_type() const
    {
        return type_;
    }

    bool is_primary_key() const
    {
        return primary_key_;
    }

    int get_size() const
    {
        return size_;
    } 
        
    int get_precision() const
    {
        return precision_;
    }

private:
    std::string name_;
    int type_;
    bool primary_key_;
    int size_;
    int precision_;
};
     
template <typename charT,typename traits>
inline std::basic_ostream<charT,traits>&
operator << (std::basic_ostream<charT,traits>& out,
             attribute_descriptor const& ad)
{
    out << "name=" << ad.get_name() << "\n";
    out << "type=" << ad.get_type() << "\n";
    out << "size=" << ad.get_size() << "\n";
    return out;
}


}

#endif // ATTRIBUTE_DESCRIPTOR_HPP