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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_FUNCTION_TIME_FROM_DAYS_H
#define DRIZZLED_FUNCTION_TIME_FROM_DAYS_H
#include <drizzled/function/time/date.h>
namespace drizzled
{
/* forward declarations */
class Date;
class Item_func_from_days :public Item_date
{
public:
Item_func_from_days(Item *a) :Item_date(a) {}
const char *func_name() const { return "from_days"; }
/**
* All functions which inherit from Item_date must implement
* their own get_temporal() method, which takes a supplied
* Date reference and populates it with a correct
* date based on the semantics of the function.
*
* For FROM_DAYS(), we interpret the function's argument
* as a Julian Day Number and populate our supplied Date
* reference accordingly.
*
* Returns whether the function was able to correctly fill
* the supplied date temporal with a proper date.
*
* For a NULL parameter, we return false and set null_value
* to true.
*
* @param Reference to a Date to populate
*/
bool get_temporal(Date &temporal);
};
} /* namespace drizzled */
#endif /* DRIZZLED_FUNCTION_TIME_FROM_DAYS_H */
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