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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_SORT_FIELD_H
#define DRIZZLED_SORT_FIELD_H
#include <drizzled/item_result.h>
namespace drizzled
{
class Field;
class Item;
/**
* A structure used to describe sort information
* for a field or item used in ORDER BY.
*/
class SortField
{
public:
Field *field; /**< Field to sort */
Item *item; /**< Item if not sorting fields */
size_t length; /**< Length of sort field */
uint32_t suffix_length; /**< Length suffix (0-4) */
Item_result result_type; /**< Type of item */
bool reverse; /**< if descending sort */
bool need_strxnfrm; /**< If we have to use strxnfrm() */
SortField() :
field(0),
item(0),
length(0),
suffix_length(0),
result_type(STRING_RESULT),
reverse(0),
need_strxnfrm(0)
{ }
};
} /* namespace drizzled */
#endif /* DRIZZLED_SORT_FIELD_H */
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