Drizzled Public API Documentation

cache_row.h
1 /* -*- mode: c++; c-basic-offset: 2; indent-tabs-mode: nil; -*-
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3  *
4  * Copyright (C) 2008 Sun Microsystems, Inc.
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13  * GNU General Public License for more details.
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15  * You should have received a copy of the GNU General Public License
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17  * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
18  */
19 
20 #pragma once
21 
22 #include <drizzled/item/cache.h>
23 
24 namespace drizzled {
25 
26 class Item_cache_row : public Item_cache
27 {
28  Item_cache **values;
29  uint32_t item_count;
30  bool save_array;
31 public:
32 
34  :Item_cache(), values(0), item_count(2), save_array(0) {}
35 
36  /*
37  'allocate' used only in row transformer, to preallocate space for row
38  cache.
39  */
40  void allocate(uint32_t num);
41  /*
42  'setup' is needed only by row => it not called by simple row subselect
43  (only by IN subselect (in subselect optimizer))
44  */
45  bool setup(Item*);
46  void store(Item*);
47  void illegal_method_call(const char * method_name);
48  void make_field(SendField *field);
49  double val_real();
50  int64_t val_int();
51  String *val_str(String *val);
53 
54  enum Item_result result_type() const;
55 
56  uint32_t cols();
57  Item *element_index(uint32_t i);
58  Item **addr(uint32_t i);
59  bool check_cols(uint32_t c);
60  bool null_inside();
61  void bring_value();
62  void keep_array();
63  void cleanup();
64 
65 };
66 
67 } /* namespace drizzled */
68 
type::Decimal * val_decimal(type::Decimal *val)
Definition: cache_row.cc:53
String * val_str(String *val)
Definition: cache_row.cc:47