Drizzled Public API Documentation

domain_constraints.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 DomainConstraints::DomainConstraints() :
28  InformationSchema("DOMAIN_CONSTRAINTS")
29 {
30  add_field("CONSTRAINT_CATALOG");
31  add_field("CONSTRAINT_SCHEMA");
32  add_field("CONSTRAINT_NAME");
33  add_field("DOMAIN_CATALOG");
34  add_field("DOMAIN_SCHEMA");
35  add_field("DOMAIN_NAME");
36  add_field("IS_DEFERRABLE", plugin::TableFunction::BOOLEAN, 0, false);
37  add_field("INITIALLY_DEFERRED", plugin::TableFunction::BOOLEAN, 0, false);
38 }
39 
40 void DomainConstraints::Generator::fill()
41 {
42 }
43 
44 bool DomainConstraints::Generator::nextCore()
45 {
46  return false;
47 }
48 
49 bool DomainConstraints::Generator::next()
50 {
51  while (not nextCore())
52  {
53  return false;
54  }
55 
56  return true;
57 }
58 
59 DomainConstraints::Generator::Generator(drizzled::Field **arg) :
60  InformationSchema::Generator(arg),
61  is_primed(false)
62 {
63 }
64 
65 bool DomainConstraints::Generator::populate()
66 {
67  if (not next())
68  return false;
69 
70  fill();
71 
72  return true;
73 }