Drizzled Public API Documentation

table_ident.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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6  * This program is free software; you can redistribute it and/or modify
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8  * the Free Software Foundation; version 2 of the License.
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10  * This program is distributed in the hope that it will be useful,
11  * but WITHOUT ANY WARRANTY; without even the implied warranty of
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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 
21 #pragma once
22 
23 #include <drizzled/lex_string.h>
24 #include <drizzled/memory/sql_alloc.h>
25 #include <drizzled/util/test.h>
26 
27 namespace drizzled {
28 
29 /* Structure for db & table in sql_yacc */
31 {
32 public:
33  lex_string_t db;
34  str_ref table;
35  Select_Lex_Unit *sel;
36 
37  Table_ident(lex_string_t db_arg, str_ref table_arg)
38  : db(db_arg), table(table_arg), sel(NULL)
39  {
40  }
41 
42  explicit Table_ident(lex_string_t table_arg)
43  : table(table_arg), sel(NULL)
44  {
45  db.assign(static_cast<const char*>(NULL), 0);
46  }
47 
48  /*
49  This constructor is used only for the case when we create a derived
50  table. A derived table has no name and doesn't belong to any database.
51  Later, if there was an alias specified for the table, it will be set
52  by add_table_to_list.
53  */
54  explicit Table_ident(Select_Lex_Unit *s) :
55  table("*"), sel(s)
56  {
57  /* We must have a table name here as this is used with add_table_to_list */
58  db.assign("", 0); // a subject to casedn_str
59  }
60  bool is_derived_table() const { return test(sel); }
61 };
62 
63 } /* namespace drizzled */
64 
TODO: Rename this file - func.h is stupid.