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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
*/
#ifndef DRIZZLED_ITEM_DIRECT_REF_H
#define DRIZZLED_ITEM_DIRECT_REF_H
#include <drizzled/item/ref.h>
namespace drizzled
{
/*
The same as Item_ref, but get value from val_* family of method to get
value of item on which it referred instead of result* family.
*/
class Item_direct_ref :public Item_ref
{
public:
Item_direct_ref(Name_resolution_context *context_arg, Item **item,
const char *table_name_arg,
const char *field_name_arg,
bool alias_name_used_arg= false)
:Item_ref(context_arg, item, table_name_arg,
field_name_arg, alias_name_used_arg)
{}
/* Constructor need to process subselect with temporary tables (see Item) */
Item_direct_ref(Session *session, Item_direct_ref *item) : Item_ref(session, item) {}
double val_real();
int64_t val_int();
String *val_str(String* tmp);
type::Decimal *val_decimal(type::Decimal *);
bool val_bool();
bool is_null();
bool get_date(type::Time <ime,uint32_t fuzzydate);
virtual Ref_Type ref_type() { return DIRECT_REF; }
};
} /* namespace drizzled */
#endif /* DRIZZLED_ITEM_DIRECT_REF_H */
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