~drizzle-trunk/drizzle/development

1420 by Brian Aker
Updated to use show schemas specific table.
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/* - mode: c; c-basic-offset: 2; indent-tabs-mode: nil; -*-
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 *  vim:expandtab:shiftwidth=2:tabstop=2:smarttab:
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 *
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 *  Copyright (C) 2010 Brian Aker
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 *
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 *  This program is free software; you can redistribute it and/or modify
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 *  it under the terms of the GNU General Public License as published by
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 *  the Free Software Foundation; either version 2 of the License, or
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 *  (at your option) any later version.
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 *
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 *  This program is distributed in the hope that it will be useful,
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 *  but WITHOUT ANY WARRANTY; without even the implied warranty of
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 *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
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 *  GNU General Public License for more details.
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 *
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 *  You should have received a copy of the GNU General Public License
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 *  along with this program; if not, write to the Free Software
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 *  Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
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 */
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#include "config.h"
1429.1.1 by Brian Aker
Shift show commands to their own dictionary.
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#include "plugin/show_dictionary/dictionary.h"
1420 by Brian Aker
Updated to use show schemas specific table.
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using namespace std;
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using namespace drizzled;
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ShowSchemas::ShowSchemas() :
1874.2.4 by Brian Aker
Have show functions be invisible.
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  show_dictionary::Show("SHOW_SCHEMAS")
1420 by Brian Aker
Updated to use show schemas specific table.
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{
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  add_field("SCHEMA_NAME");
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}
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ShowSchemas::Generator::Generator(Field **arg) :
1874.2.4 by Brian Aker
Have show functions be invisible.
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  show_dictionary::Show::Generator(arg),
1420 by Brian Aker
Updated to use show schemas specific table.
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  is_schema_primed(false)
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{
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}
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/**
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  @note return true if a match occurs.
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*/
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bool ShowSchemas::Generator::checkSchema()
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{
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  if (isWild((*schema_iterator).getSchemaName()))
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    return true;
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  return false;
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}
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bool ShowSchemas::Generator::nextSchemaCore()
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{
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  if (is_schema_primed)
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  {
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    schema_iterator++;
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  }
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  else
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  {
1663.1.4 by Brian Aker
Removed identifier bit
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    plugin::StorageEngine::getIdentifiers(getSession(), schema_names);
1420 by Brian Aker
Updated to use show schemas specific table.
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    schema_iterator= schema_names.begin();
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    is_schema_primed= true;
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  }
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  if (schema_iterator == schema_names.end())
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    return false;
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  if (checkSchema())
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      return false;
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  return true;
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}
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bool ShowSchemas::Generator::nextSchema()
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{
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  while (not nextSchemaCore())
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  {
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    if (schema_iterator == schema_names.end())
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      return false;
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  }
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  return true;
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}
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bool ShowSchemas::Generator::populate()
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{
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  if (nextSchema())
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  {
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    fill();
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    return true;
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  }
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  return false;
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}
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/**
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  A lack of a parsed schema file means we are using defaults.
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*/
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void ShowSchemas::Generator::fill()
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{
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  /* Schema */
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  push((*schema_iterator).getSchemaName());
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}