Drizzled Public API Documentation

empty_string.h
00001 /* -*- mode: c++; c-basic-offset: 2; indent-tabs-mode: nil; -*-
00002  *  vim:expandtab:shiftwidth=2:tabstop=2:smarttab:
00003  *
00004  *  Copyright (C) 2008 Sun Microsystems, Inc.
00005  *
00006  *  This program is free software; you can redistribute it and/or modify
00007  *  it under the terms of the GNU General Public License as published by
00008  *  the Free Software Foundation; version 2 of the License.
00009  *
00010  *  This program is distributed in the hope that it will be useful,
00011  *  but WITHOUT ANY WARRANTY; without even the implied warranty of
00012  *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
00013  *  GNU General Public License for more details.
00014  *
00015  *  You should have received a copy of the GNU General Public License
00016  *  along with this program; if not, write to the Free Software
00017  *  Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
00018  */
00019 
00020 #pragma once
00021 
00028 #include <drizzled/item/string.h>
00029 
00030 namespace drizzled
00031 {
00032 
00033 class Item_empty_string :public Item_string
00034 {
00035 public:
00036   Item_empty_string(const char *header,uint32_t length, const CHARSET_INFO * cs= NULL) :
00037     Item_string("",0, cs ? cs : &my_charset_utf8_general_ci)
00038     { name= const_cast<char*>(header); max_length= cs ? length * cs->mbmaxlen : length; }
00039   void make_field(SendField *field);
00040 };
00041 
00042 } /* namespace drizzled */
00043