table_definition_cache.cc

/* - 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
 */

#include <config.h>

#include <plugin/table_cache_dictionary/dictionary.h>

using namespace drizzled;
using namespace std;

table_cache_dictionary::TableDefinitionCache::TableDefinitionCache() :
  plugin::TableFunction("DATA_DICTIONARY", "TABLE_DEFINITION_CACHE")
{
  add_field("TABLE_SCHEMA", plugin::TableFunction::STRING, MAXIMUM_IDENTIFIER_LENGTH, false);
  add_field("TABLE_NAME", plugin::TableFunction::STRING, MAXIMUM_IDENTIFIER_LENGTH, false);
  add_field("VERSION", plugin::TableFunction::NUMBER, 0, false);
  add_field("TABLE_COUNT", plugin::TableFunction::NUMBER, 0, false);
  add_field("IS_NAME_LOCKED", plugin::TableFunction::BOOLEAN, 0, false);
}

table_cache_dictionary::TableDefinitionCache::Generator::Generator(drizzled::Field **arg) :
  drizzled::plugin::TableFunction::Generator(arg)
{
}

bool table_cache_dictionary::TableDefinitionCache::Generator::populate()
{
  while (drizzled::TableShare::shared_ptr share= table_definition_cache_generator)
  {
    /* TABLE_SCHEMA 1 */
    push(share->getSchemaNameRef());

    /* TABLE_NAME  2 */
    push(share->getTableNameRef());

    /* VERSION 3 */
    push(static_cast<int64_t>(share->getVersion()));

    /* TABLE_COUNT 4 */
    push(static_cast<uint64_t>(share->getTableCount()));

    /* IS_NAME_LOCKED */
    push(false);

    return true;
  }

  return false;
}