Drizzled Public API Documentation

constraint_table_usage.cc
1 /* - mode: c; c-basic-offset: 2; indent-tabs-mode: nil; -*-
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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 #include <config.h>
22 #include <plugin/information_schema_dictionary/dictionary.h>
23 
24 using namespace std;
25 using namespace drizzled;
26 
27 ConstraintTableUsage::ConstraintTableUsage() :
28  InformationSchema("CONSTRAINT_TABLE_USAGE")
29 {
30  add_field("TABLE_CATALOG", plugin::TableFunction::STRING, MAXIMUM_IDENTIFIER_LENGTH, false);
31  add_field("TABLE_SCHEMA", plugin::TableFunction::STRING, MAXIMUM_IDENTIFIER_LENGTH, false);
32  add_field("TABLE_NAME", plugin::TableFunction::STRING, MAXIMUM_IDENTIFIER_LENGTH, false);
33  add_field("CONSTRAINT_CATALOG", plugin::TableFunction::STRING, MAXIMUM_IDENTIFIER_LENGTH, false);
34  add_field("CONSTRAINT_SCHEMA", plugin::TableFunction::STRING, MAXIMUM_IDENTIFIER_LENGTH, false);
35  add_field("CONSTRAINT_NAME", plugin::TableFunction::STRING, MAXIMUM_IDENTIFIER_LENGTH, false);
36 }
37 
38 void ConstraintTableUsage::Generator::fill()
39 {
40 }
41 
42 bool ConstraintTableUsage::Generator::nextCore()
43 {
44  return false;
45 }
46 
47 bool ConstraintTableUsage::Generator::next()
48 {
49  while (not nextCore())
50  {
51  return false;
52  }
53 
54  return true;
55 }
56 
57 ConstraintTableUsage::Generator::Generator(drizzled::Field **arg) :
58  InformationSchema::Generator(arg),
59  is_primed(false)
60 {
61 }
62 
63 bool ConstraintTableUsage::Generator::populate()
64 {
65  if (not next())
66  return false;
67 
68  fill();
69 
70  return true;
71 }
TODO: Rename this file - func.h is stupid.