Drizzled Public API Documentation

concat.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 
00022 #include <drizzled/function/str/strfunc.h>
00023 
00024 namespace drizzled
00025 {
00026 
00027 class Item_func_concat :public Item_str_func
00028 {
00029   Session &session;
00030   String tmp_value;
00031 public:
00032   Item_func_concat(Session &session_arg, List<Item> &list) :
00033     Item_str_func(list),
00034     session(session_arg)
00035   {}
00036 
00037   Item_func_concat(Session &session_arg, Item *a, Item *b) :
00038     Item_str_func(a, b),
00039     session(session_arg)
00040   {}
00041 
00042   String *val_str(String *);
00043   void fix_length_and_dec();
00044   const char *func_name() const { return "concat"; }
00045 };
00046 
00047 class Item_func_concat_ws :public Item_str_func
00048 {
00049   Session &session;
00050   String tmp_value;
00051 public:
00052   Item_func_concat_ws(Session &session_arg, List<Item> &list) :
00053     Item_str_func(list),
00054     session(session_arg)
00055   {}
00056   String *val_str(String *);
00057   void fix_length_and_dec();
00058   const char *func_name() const { return "concat_ws"; }
00059   table_map not_null_tables() const { return 0; }
00060 };
00061 
00062 } /* namespace drizzled */
00063