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/* -*- mode: c++; c-basic-offset: 2; indent-tabs-mode: nil; -*-
* vim:expandtab:shiftwidth=2:tabstop=2:smarttab:
*
* Copyright (C) 2010 Brian Aker
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
*/
#pragma once
namespace drizzled {
namespace generator {
typedef std::pair<const drizzled::message::Table *, int32_t> ForeignKeyConstraintPair;
class AllForeignKeys
{
Session &session;
message::Table table_message;
drizzled::message::table::shared_ptr table_ptr;
int32_t foreign_keys_iterator;
drizzled::generator::AllTables all_tables_generator;
bool table_setup();
public:
AllForeignKeys(Session &arg);
void reset();
operator const drizzled::message::Table::ForeignKeyConstraint*()
{
if (table_ptr)
{
do {
if (foreign_keys_iterator != table_message.fk_constraint_size())
{
return &table_message.fk_constraint(foreign_keys_iterator++);
}
} while ((table_ptr= all_tables_generator) && table_setup());
}
return NULL;
}
operator const ForeignKeyConstraintPair()
{
if (table_ptr)
{
do {
if (foreign_keys_iterator != table_message.fk_constraint_size())
{
return std::make_pair(&table_message, foreign_keys_iterator++);
}
} while ((table_ptr= all_tables_generator) && table_setup());
}
return ForeignKeyConstraintPair();
}
};
} /* namespace generator */
} /* namespace drizzled */
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