Drizzled Public API Documentation

constraint_column_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 ConstraintColumnUsage::ConstraintColumnUsage() :
28  InformationSchema("CONSTRAINT_COLUMN_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("COLUMN_NAME", plugin::TableFunction::STRING, MAXIMUM_IDENTIFIER_LENGTH, false);
34  add_field("CONSTRAINT_CATALOG", plugin::TableFunction::STRING, MAXIMUM_IDENTIFIER_LENGTH, false);
35  add_field("CONSTRAINT_SCHEMA", plugin::TableFunction::STRING, MAXIMUM_IDENTIFIER_LENGTH, false);
36  add_field("CONSTRAINT_NAME", plugin::TableFunction::STRING, MAXIMUM_IDENTIFIER_LENGTH, false);
37 }
38 
39 void ConstraintColumnUsage::Generator::fill()
40 {
41 }
42 
43 bool ConstraintColumnUsage::Generator::nextCore()
44 {
45  return false;
46 }
47 
48 bool ConstraintColumnUsage::Generator::next()
49 {
50  while (not nextCore())
51  {
52  return false;
53  }
54 
55  return true;
56 }
57 
58 ConstraintColumnUsage::Generator::Generator(drizzled::Field **arg) :
59  InformationSchema::Generator(arg),
60  is_primed(false)
61 {
62 }
63 
64 bool ConstraintColumnUsage::Generator::populate()
65 {
66  if (not next())
67  return false;
68 
69  fill();
70 
71  return true;
72 }
TODO: Rename this file - func.h is stupid.