~drizzle-trunk/drizzle/development

1878.3.1 by Monty Taylor
Split set_var.* into sys_var.* and set_var.*
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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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 *
1999.6.1 by kalebral at gmail
update Copyright strings to a more common format to help with creating the master debian copyright file
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 *  Copyright (C) 2008 Sun Microsystems, Inc.
1878.3.1 by Monty Taylor
Split set_var.* into sys_var.* and set_var.*
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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; version 2 of the License.
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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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2234 by Brian Aker
Mass removal of ifdef/endif in favor of pragma once.
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#pragma once
1878.3.1 by Monty Taylor
Split set_var.* into sys_var.* and set_var.*
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2040.6.4 by Monty Taylor
Replaced List<set_var_base> with
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#include <boost/shared_ptr.hpp>
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2252.1.16 by Olaf van der Spek
Common fwd
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#include <drizzled/common_fwd.h>
2207.8.2 by Olaf van der Spek
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#include <drizzled/enum.h>
2173.2.1 by Monty Taylor
Fixes incorrect usage of include
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#include <drizzled/lex_string.h>
1878.3.1 by Monty Taylor
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2207.8.2 by Olaf van der Spek
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namespace drizzled {
1878.3.1 by Monty Taylor
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/* Classes to support the SET command */
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/****************************************************************************
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  Variables that are changable runtime are declared using the
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  following classes
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****************************************************************************/
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/****************************************************************************
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  Classes for parsing of the SET command
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****************************************************************************/
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2040.6.4 by Monty Taylor
Replaced List<set_var_base> with
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class set_var_base
1878.3.1 by Monty Taylor
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{
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public:
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  set_var_base() {}
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  virtual ~set_var_base() {}
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  virtual int check(Session *session)=0;	/* To check privileges etc. */
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  virtual int update(Session *session)=0;	/* To set the value */
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  /* light check for PS */
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};
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/* MySQL internal variables */
1878.3.2 by Monty Taylor
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class set_var :
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  public set_var_base
1878.3.1 by Monty Taylor
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{
2070.2.2 by Monty Taylor
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  uint64_t uint64_t_value;
2070.2.1 by Monty Taylor
First step in getting that anonymous union out of set_var.
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  std::string str_value;
1878.3.1 by Monty Taylor
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public:
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  sys_var *var;
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  Item *value;
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  sql_var_t type;
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  LEX_STRING base;			/* for structs */
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  set_var(sql_var_t type_arg, sys_var *var_arg,
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          const LEX_STRING *base_name_arg, Item *value_arg);
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  int check(Session *session);
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  int update(Session *session);
2070.2.1 by Monty Taylor
First step in getting that anonymous union out of set_var.
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  void setValue(const std::string &new_value);
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  void setValue(uint64_t new_value);
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  void updateValue();
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  uint64_t getInteger()
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  {
2070.2.2 by Monty Taylor
Removed some guts from set_var.
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    return uint64_t_value;
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  }
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1878.3.1 by Monty Taylor
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};
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/* User variables like @my_own_variable */
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class set_var_user: public set_var_base
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{
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  Item_func_set_user_var *user_var_item;
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public:
2040.6.5 by Monty Taylor
Reset the vector in LEX. Stupid class reuse.
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  explicit set_var_user(Item_func_set_user_var *item) :
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    user_var_item(item)
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  {}
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  int check(Session *session);
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  int update(Session *session);
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};
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2040.6.4 by Monty Taylor
Replaced List<set_var_base> with
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typedef boost::shared_ptr<set_var_base> SetVarPtr;
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typedef std::vector<SetVarPtr> SetVarVector;
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int sql_set_variables(Session *session, const SetVarVector &var_list);
1878.3.1 by Monty Taylor
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} /* namespace drizzled */
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