~drizzle-trunk/drizzle/development

1996.2.1 by Brian Aker
uuid type code.
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/* - mode: c++ c-basic-offset: 2; indent-tabs-mode: nil; -*-
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 *  vim:expandtab:shiftwidth=2:tabstop=2:smarttab:
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 *
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 *  Copyright (C) 2010 Brian Aker
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 *
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 *  This program is free software; you can redistribute it and/or modify
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 *  it under the terms of the GNU General Public License as published by
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 *  the Free Software Foundation; either version 2 of the License, or
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 *  (at your option) any later version.
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 *
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 *  This program is distributed in the hope that it will be useful,
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 *  but WITHOUT ANY WARRANTY; without even the implied warranty of
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 *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
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 *  GNU General Public License for more details.
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 *
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 *  You should have received a copy of the GNU General Public License
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 *  along with this program; if not, write to the Free Software
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 *  Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
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 */
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#ifndef DRIZZLED_FIELD_UUID_H
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#define DRIZZLED_FIELD_UUID_H
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#include <drizzled/field.h>
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#include <string>
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#include "drizzled/field/uuid_st.h"
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namespace drizzled
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{
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namespace field
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{
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class Uuid :public Field {
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  const CHARSET_INFO *field_charset;
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  bool is_set;
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public:
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  Uuid(unsigned char *ptr_arg,
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       uint32_t len_arg,
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       unsigned char *null_ptr_arg,
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       unsigned char null_bit_arg,
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       const char *field_name_arg);
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  enum_field_types type() const { return DRIZZLE_TYPE_UUID; }
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  enum ha_base_keytype key_type() const { return HA_KEYTYPE_BINARY; }
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  bool zero_pack() const { return 0; }
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  int  reset(void) { memset(ptr, 0, uuid_st::LENGTH); return 0; }
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  uint32_t pack_length() const { return uuid_st::LENGTH; }
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  uint32_t key_length() const { return uuid_st::LENGTH; }
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  int store(const char *to, uint32_t length, const CHARSET_INFO * const charset);
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  int store(int64_t nr, bool unsigned_val);
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  double val_real();
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  int64_t val_int();
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  String *val_str(String*,String *);
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  void sql_type(drizzled::String&) const;
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  int store_decimal(const drizzled::my_decimal*);
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  Item_result result_type () const { return STRING_RESULT; }
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  int cmp(const unsigned char*, const unsigned char*);
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  void sort_string(unsigned char*, uint32_t);
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  uint32_t max_display_length() { return uuid_st::DISPLAY_LENGTH; }
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  int  store(double ) { return 0; }
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  inline String *val_str(String *str) { return val_str(str, str); }
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  uint32_t size_of() const { return sizeof(*this); }
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  bool get_date(DRIZZLE_TIME *ltime, uint32_t);
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  bool get_time(DRIZZLE_TIME *ltime);
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#ifdef NOT_YET
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  void generate();
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  void set(const unsigned char *arg);
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#endif
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  static size_t max_string_length()
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  {
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    return uuid_st::LENGTH;
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  }
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};
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} /* namespace field */
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} /* namespace drizzled */
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#endif /* DRIZZLED_FIELD_UUID_H */
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