Drizzled Public API Documentation

time.h
1 /* -*- mode: c++; c-basic-offset: 2; indent-tabs-mode: nil; -*-
2  * vim:expandtab:shiftwidth=2:tabstop=2:smarttab:
3  *
4  * Copyright (C) 2011 Matthew Rheaume
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; version 2 of the License.
9  *
10  * This program is distributed in the hopethat it will be useful,
11  * but WITHOUT ANY WARRANTY; without even the implied warranty of
12  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
13  * GNU General Public License for more details.
14  *
15  * You should have received a copy of the GNU General Public License
16  * along with this program; if not, write to the Free Software
17  * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
18  */
19 
20 #pragma once
21 
22 #include <drizzled/function/func.h>
23 #include <drizzled/temporal.h>
24 
25 namespace drizzled {
26 
27 class Item_time :public Item_func
28 {
29 public:
30  using Item_func::tmp_table_field;
31 
32  Item_time() :Item_func() {}
33  Item_time(Item *a) :Item_func(a) {}
34  enum Item_result result_type() const { return STRING_RESULT; }
35  enum_field_types field_type() const { return DRIZZLE_TYPE_TIME; }
36  String *val_str(String *str);
37  int64_t val_int();
38  double val_real() { return val_real_from_decimal(); }
39  const char *func_name() const { return "time"; }
40  void fix_length_and_dec()
41  {
42  collation.set(&my_charset_bin);
43  decimals=0;
44  max_length=Time::MAX_STRING_LENGTH*MY_CHARSET_BIN_MB_MAXLEN;
45  }
46 
47  virtual bool get_temporal(Time &temporal)=0;
48  Field *tmp_table_field(Table *table)
49  {
50  return tmp_table_field_from_field_type(table, 0);
51  }
52  bool result_as_int64_t() { return true; }
54  {
55  assert(fixed == 1);
56  return val_decimal_from_time(decimal_value);
57  }
58  int save_in_field(Field *field,
59  bool )
60  {
61  return save_time_in_field(field);
62  }
63 };
64 
65 } /* namespace drizzled */