Drizzled Public API Documentation

hybrid_type_traits_integer.h

00001 /* -*- mode: c++; c-basic-offset: 2; indent-tabs-mode: nil; -*-
00002  *  vim:expandtab:shiftwidth=2:tabstop=2:smarttab:
00003  *
00004  *  Copyright (C) 2008 Sun Microsystems, Inc.
00005  *
00006  *  This program is free software; you can redistribute it and/or modify
00007  *  it under the terms of the GNU General Public License as published by
00008  *  the Free Software Foundation; version 2 of the License.
00009  *
00010  *  This program is distributed in the hope that it will be useful,
00011  *  but WITHOUT ANY WARRANTY; without even the implied warranty of
00012  *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
00013  *  GNU General Public License for more details.
00014  *
00015  *  You should have received a copy of the GNU General Public License
00016  *  along with this program; if not, write to the Free Software
00017  *  Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
00018  */
00019 
00020 #pragma once
00021 
00022 #include <drizzled/hybrid_type_traits.h>
00023 
00024 namespace drizzled
00025 {
00026 
00027 class Item;
00028 class Field;
00029 class Hybrid_type;
00030 
00031 namespace type {
00032 class Decimal;
00033 }
00034 
00035 class String;
00036 
00037 class Hybrid_type_traits_integer: public Hybrid_type_traits
00038 {
00039 
00040 public:
00041   virtual Item_result type() const;
00042 
00043   virtual void fix_length_and_dec(Item *arg, Item *item) const;
00044 
00045   /* Hybrid_type operations. */
00046   virtual void set_zero(Hybrid_type *val) const;
00047   virtual void add(Hybrid_type *val, Field *f) const;
00048   virtual void div(Hybrid_type *val, uint64_t u) const;
00049 
00050   virtual int64_t val_int(Hybrid_type *val, bool unsigned_flag) const;
00051   virtual double val_real(Hybrid_type *val) const;
00052   virtual type::Decimal *val_decimal(Hybrid_type *val, type::Decimal *buf) const;
00053   virtual String *val_str(Hybrid_type *val, String *buf,
00054                           uint8_t decimals) const;
00055 
00056   static const Hybrid_type_traits_integer *instance();
00057   Hybrid_type_traits_integer();
00058 };
00059 
00060 } /* namespace drizzled */
00061