~drizzle-trunk/drizzle/development

/* - mode: c++; c-basic-offset: 2; indent-tabs-mode: nil; -*-

 *  vim:expandtab:shiftwidth=2:tabstop=2:smarttab:

 *

 *  Copyright (C) 2008 MySQL

 *

 *  This program is free software; you can redistribute it and/or modify

 *  it under the terms of the GNU General Public License as published by

 *  the Free Software Foundation; either version 2 of the License, or

 *  (at your option) any later version.

 *

 *  This program 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 General Public License for more details.

 *

 *  You should have received a copy of the GNU General Public License

 *  along with this program; if not, write to the Free Software

 *  Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA

 */

#ifndef DRIZZLE_SERVER_FIELD_STR

#define DRIZZLE_SERVER_FIELD_STR

/* base class for all string related classes */

class Field_str :public Field {

protected:

  const CHARSET_INFO *field_charset;

  enum Derivation field_derivation;

public:

  Field_str(unsigned char *ptr_arg,uint32_t len_arg, unsigned char *null_ptr_arg,

            unsigned char null_bit_arg, utype unireg_check_arg,

            const char *field_name_arg, const CHARSET_INFO * const charset);

  Item_result result_type () const { return STRING_RESULT; }

  uint32_t decimals() const { return NOT_FIXED_DEC; }

  int  store(double nr);

  int  store(int64_t nr, bool unsigned_val)=0;

  int  store_decimal(const my_decimal *);

  int  store(const char *to,uint32_t length, const CHARSET_INFO * const cs)=0;

  uint32_t size_of() const { return sizeof(*this); }

  const CHARSET_INFO *charset(void) const { return field_charset; }

  void set_charset(const CHARSET_INFO * const charset_arg) { field_charset= charset_arg; }

  enum Derivation derivation(void) const { return field_derivation; }

  virtual void set_derivation(enum Derivation derivation_arg)

  { field_derivation= derivation_arg; }

  bool binary() const { return field_charset == &my_charset_bin; }

  uint32_t max_display_length() { return field_length; }

  friend class Create_field;

  my_decimal *val_decimal(my_decimal *);

  virtual bool str_needs_quotes() { return true; }

  bool compare_str_field_flags(Create_field *new_field, uint32_t flags);

  uint32_t is_equal(Create_field *new_field);

};

#endif