Drizzled Public API Documentation

all_foreign_keys.h
1 /* -*- mode: c++; c-basic-offset: 2; indent-tabs-mode: nil; -*-
2  * vim:expandtab:shiftwidth=2:tabstop=2:smarttab:
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 #pragma once
22 
23 namespace drizzled {
24 namespace generator {
25 
26 typedef std::pair<const drizzled::message::Table *, int32_t> ForeignKeyConstraintPair;
27 
29 {
30  Session &session;
31  message::Table table_message;
32  drizzled::message::table::shared_ptr table_ptr;
33  int32_t foreign_keys_iterator;
34 
35  drizzled::generator::AllTables all_tables_generator;
36 
37  bool table_setup();
38 
39 public:
40 
41  AllForeignKeys(Session &arg);
42 
43  void reset();
44 
46  {
47  if (table_ptr)
48  {
49  do {
50  if (foreign_keys_iterator != table_message.fk_constraint_size())
51  {
52  return &table_message.fk_constraint(foreign_keys_iterator++);
53  }
54 
55  } while ((table_ptr= all_tables_generator) && table_setup());
56  }
57 
58  return NULL;
59  }
60 
61  operator const ForeignKeyConstraintPair()
62  {
63  if (table_ptr)
64  {
65  do {
66  if (foreign_keys_iterator != table_message.fk_constraint_size())
67  {
68  return std::make_pair(&table_message, foreign_keys_iterator++);
69  }
70  } while ((table_ptr= all_tables_generator) && table_setup());
71  }
72 
73  return ForeignKeyConstraintPair();
74  }
75 };
76 
77 } /* namespace generator */
78 } /* namespace drizzled */
79 
TODO: Rename this file - func.h is stupid.