name_resolution_context.h

/* -*- mode: c++; c-basic-offset: 2; indent-tabs-mode: nil; -*-
 *  vim:expandtab:shiftwidth=2:tabstop=2:smarttab:
 *
 *  Copyright (C) 2008 Sun Microsystems, Inc.
 *
 *  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; version 2 of the License.
 *
 *  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

#include <drizzled/item.h>

namespace drizzled {

class Name_resolution_context : public memory::SqlAlloc
{
public:
  Name_resolution_context *outer_context;

  TableList *table_list;
  TableList *first_name_resolution_table;
  TableList *last_name_resolution_table;

  Select_Lex *select_lex;

  bool resolve_in_select_list;

  SecurityContext *security_ctx;

  Name_resolution_context()
    :
      outer_context(0), 
      table_list(0), 
      select_lex(0),
      security_ctx(0)
  {
  }

  inline void init()
  {
    resolve_in_select_list= false;
    first_name_resolution_table= NULL;
    last_name_resolution_table= NULL;
  }

  inline void resolve_in_table_list_only(TableList *tables)
  {
    table_list= first_name_resolution_table= tables;
    resolve_in_select_list= false;
  }
};

} /* namespace drizzled */