bag1.hpp

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#ifndef BAG1_
#define BAG1_

#include "eleve/config.hpp"

#include <string>
#include <map>
#include <list>
#include <string>
#include <stdexcept>

#include <boost/bimap.hpp>
#include <boost/any.hpp>
#include <boost/multi_array.hpp>
#include <boost/function.hpp>

#include "eleve/src/typing0.hpp"

namespace eepgwde { namespace detail { 

  struct Bag {

    struct Impl;
    friend struct Impl;

    typedef boost::bimap<int, std::string> attr_pos_t;

    typedef attr_pos_t::left_map::const_iterator l_itr;

    typedef attr_pos_t::right_map::const_iterator r_itr;

    attr_pos_t header;

    // Add a column to the bag.
    // 
    // Adds to both the header and reserves storage.
    void add(int column_position, const std::string & column_name);

    // Get the list for a named column.
    //
    // Null if not there.
    std::list<boost::any> * get(const std::string & name0)
      throw (std::exception);

    // Get the list for a indexed column.
    //
    // Null if not there.
    std::list<boost::any> * get(int pos)
      throw (std::exception);

    // Get the list for a named column.
    //
    // Null if not there.
    const std::list<boost::any> * get(const std::string & name0) const
      throw (std::exception);

    // Get the list for a indexed column.
    //
    // Null if not there.
    const std::list<boost::any> * get(int pos) const
      throw (std::exception);

    // Append a string value to an indexed column.
    //
    // Null if not there.
    std::list<boost::any> *
    append(int pos, const std::string & value0)
      throw (std::exception);

    Bag() throw(std::exception);
    virtual ~Bag() throw();

  protected:
    const std::auto_ptr<eepgwde::detail::Bag::Impl> impl;
  };

  std::ostream& operator<< (std::ostream& os,
                const eepgwde::detail::Bag::attr_pos_t::left_map & l);

  struct DataFrame0 {
    struct Impl;
    friend struct Impl;

    typedef boost::multi_array_types::index_range range;
    typedef boost::multi_array<boost::any, 2> ma_any_t;

    const Bag::attr_pos_t header_;

    ma_any_t frame;

    explicit DataFrame0(const Bag & bag);

    virtual ~DataFrame0() throw();
    
  protected:
    const std::auto_ptr<eepgwde::detail::DataFrame0::Impl> impl;
  };

}}

#endif

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