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