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/* -*- mode: c++; c-basic-offset: 2; indent-tabs-mode: nil; -*-
* vim:expandtab:shiftwidth=2:tabstop=2:smarttab:
*
* Copyright (C) 2009 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; 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
#include <drizzled/definitions.h>
#include <drizzled/error.h>
#include <drizzled/sql_parse.h>
#include <drizzled/sql_base.h>
#include <drizzled/show.h>
namespace drizzled {
class Session;
class TableList;
class Item;
namespace session { class Transactions; }
namespace statement {
/**
* @class Statement
* @brief Represents a statement to be executed
*/
class Statement
{
public:
Statement(Session *in_session) :
_session(*in_session)
{}
virtual ~Statement() {}
void set_command(enum_sql_command);
LEX& lex();
session::Transactions& transaction();
/**
* Execute the statement.
*
* @return true on failure; false on success
*/
virtual bool execute()= 0;
/* True if can be in transaction. Currently only DDL is not.
This should go away when DDL commands are within transactions. */
virtual bool isTransactional()
{
return false;
}
Session& session() const
{
return _session;
}
virtual bool isShow() { return false; }
private:
Session& _session;
};
} /* namespace statement */
} /* namespace drizzled */
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