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/* -*- mode: c++; c-basic-offset: 2; indent-tabs-mode: nil; -*-
* vim:expandtab:shiftwidth=2:tabstop=2:smarttab:
*
* Copyright (C) 2008 Sun Microsystems, Inc.
*
* 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; version 2 of the License.
*
* 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
*/
#pragma once
#include <drizzled/memory/sql_alloc.h>
#include <drizzled/sql_string.h>
#include <drizzled/type/decimal.h>
namespace drizzled
{
class Item;
class Session;
class Field;
class Cached_item :public memory::SqlAlloc
{
public:
bool null_value;
Cached_item() :null_value(0) {}
virtual bool cmp(void)=0;
virtual ~Cached_item(); /*line -e1509 */
};
class Cached_item_str :public Cached_item
{
Item *item;
String value,tmp_value;
public:
Cached_item_str(Session *session, Item *arg);
bool cmp(void);
~Cached_item_str(); // Deallocate String:s
};
class Cached_item_real :public Cached_item
{
Item *item;
double value;
public:
Cached_item_real(Item *item_par) :item(item_par),value(0.0) {}
bool cmp(void);
};
class Cached_item_int :public Cached_item
{
Item *item;
int64_t value;
public:
Cached_item_int(Item *item_par) :item(item_par),value(0) {}
bool cmp(void);
};
class Cached_item_decimal :public Cached_item
{
Item *item;
type::Decimal value;
public:
Cached_item_decimal(Item *item_par);
bool cmp(void);
};
class Cached_item_field :public Cached_item
{
unsigned char *buff;
Field *field;
uint32_t length;
public:
Cached_item_field(Field *arg_field);
bool cmp(void);
};
Cached_item *new_Cached_item(Session *session, Item *item);
} /* namespace drizzled */
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