empty_string.h

/* -*- 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/item/string.h>

namespace drizzled {

class Item_empty_string : public Item_string
{
public:
  Item_empty_string(const char* header, uint32_t length, const charset_info_st* cs= NULL) :
    Item_string(str_ref(""), cs ? cs : &my_charset_utf8_general_ci)
  { 
    name= header; 
    max_length= cs ? length * cs->mbmaxlen : length; 
  }

  void make_field(SendField*);
};

} /* namespace drizzled */