Drizzled Public API Documentation

cache.cc
1 /* -*- mode: c++; c-basic-offset: 2; indent-tabs-mode: nil; -*-
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4  * Copyright (C) 2008 Sun Microsystems, Inc.
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13  * GNU General Public License for more details.
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17  * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
18  */
19 
20 #include <config.h>
21 
22 #include <drizzled/field.h>
23 #include <drizzled/item/cache.h>
24 #include <drizzled/item/cache_decimal.h>
25 #include <drizzled/item/cache_int.h>
26 #include <drizzled/item/cache_real.h>
27 #include <drizzled/item/cache_row.h>
28 #include <drizzled/item/cache_str.h>
29 #include <drizzled/lex_string.h>
30 
31 namespace drizzled {
32 
33 Item_cache* Item_cache::get_cache(const Item *item)
34 {
35  switch (item->result_type())
36  {
37  case INT_RESULT:
38  return new Item_cache_int();
39 
40  case REAL_RESULT:
41  return new Item_cache_real();
42 
43  case DECIMAL_RESULT:
44  return new Item_cache_decimal();
45 
46  case STRING_RESULT:
47  return new Item_cache_str(item);
48 
49  case ROW_RESULT:
50  return new Item_cache_row();
51  }
52 
53  assert(false);
54  abort();
55 }
56 
57 
59 {
60  str->append(STRING_WITH_LEN("<cache>("));
61  if (example)
62  example->print(str);
63  else
64  Item::print(str);
65  str->append(')');
66 }
67 
68 bool Item_cache::eq_def(Field *field)
69 {
70  return cached_field ? cached_field->eq_def(field) : false;
71 }
72 
73 } /* namespace drizzled */
virtual bool eq_def(Field *field)
Definition: field.cc:1146
virtual void print(String *str)
Definition: item.cc:362
virtual void print(String *str)
Definition: cache.cc:58