Drizzled Public API Documentation

boolean.h
1 /* - mode: c++ c-basic-offset: 2; indent-tabs-mode: nil; -*-
2  * vim:expandtab:shiftwidth=2:tabstop=2:smarttab:
3  *
4  * Copyright (C) 2010 Brian Aker
5  *
6  * This program is free software; you can redistribute it and/or modify
7  * it under the terms of the GNU General Public License as published by
8  * the Free Software Foundation; either version 2 of the License, or
9  * (at your option) any later version.
10  *
11  * This program is distributed in the hope that it will be useful,
12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14  * GNU General Public License for more details.
15  *
16  * You should have received a copy of the GNU General Public License
17  * along with this program; if not, write to the Free Software
18  * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
19  */
20 
21 #pragma once
22 
23 #include <drizzled/charset.h>
24 #include <drizzled/function/str/strfunc.h>
25 
26 namespace drizzled {
27 namespace function {
28 namespace cast {
29 
30 class Boolean : public Item_str_func
31 {
32 public:
33  Boolean(Item *a) :
34  Item_str_func(a)
35  {}
36 
38 
39  void fix_length_and_dec()
40  {
41  collation.set(&my_charset_bin);
42  max_length=args[0]->max_length;
43  }
44  virtual void print(String *str);
45  const char *func_name() const { return "cast_as_boolean"; }
46 
47 private:
48  String *evaluate(const bool &result, String *val_buffer);
49 };
50 
51 } // namespace cast
52 } // namespace function
53 } // namespace drizzled
54 
TODO: Rename this file - func.h is stupid.
virtual void print(String *str)
Definition: boolean.cc:32
drizzled::String * val_str(drizzled::String *value)
Definition: boolean.cc:39