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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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* Copyright (C) 2008 MySQL
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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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* 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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* 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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#ifndef DRIZZLE_SERVER_FIELD_ENUM
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#define DRIZZLE_SERVER_FIELD_ENUM
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class Field_enum :public Field_str {
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Field_enum(unsigned char *ptr_arg, uint32_t len_arg, unsigned char *null_ptr_arg,
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unsigned char null_bit_arg,
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enum utype unireg_check_arg, const char *field_name_arg,
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uint32_t packlength_arg,
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const CHARSET_INFO * const charset_arg)
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:Field_str(ptr_arg, len_arg, null_ptr_arg, null_bit_arg,
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unireg_check_arg, field_name_arg, charset_arg),
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packlength(packlength_arg),typelib(typelib_arg)
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Field *new_field(MEM_ROOT *root, Table *new_table, bool keep_type);
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enum_field_types type() const { return DRIZZLE_TYPE_ENUM; }
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enum Item_result cmp_type () const { return INT_RESULT; }
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enum Item_result cast_to_int_type () const { return INT_RESULT; }
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enum ha_base_keytype key_type() const;
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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(void);
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int64_t val_int(void);
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String *val_str(String*,String *);
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int cmp(const unsigned char *,const unsigned char *);
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void sort_string(unsigned char *buff,uint32_t length);
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uint32_t pack_length() const { return (uint32_t) packlength; }
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void store_type(uint64_t value);
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void sql_type(String &str) const;
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uint32_t size_of() const { return sizeof(*this); }
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enum_field_types real_type() const { return DRIZZLE_TYPE_ENUM; }
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uint32_t pack_length_from_metadata(uint32_t field_metadata)
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{ return (field_metadata & 0x00ff); }
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uint32_t row_pack_length() { return pack_length(); }
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virtual bool zero_pack() const { return 0; }
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bool optimize_range(uint32_t idx __attribute__((unused)),
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uint32_t part __attribute__((unused)))
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bool eq_def(Field *field);
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bool has_charset(void) const { return true; }
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/* enum and set are sorted as integers */
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const CHARSET_INFO *sort_charset(void) const { return &my_charset_bin; }
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int do_save_field_metadata(unsigned char *first_byte);