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/*
* Copyright (c) 2007, 2010, Oracle and/or its affiliates. All rights reserved.
*
* 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
*/
#ifndef _SQL_NORMALIZER_H_
#define _SQL_NORMALIZER_H_
#include "wbpublic_public_interface.h"
#include <boost/shared_ptr.hpp>
#include <string>
/**
* Defines interface to normalize provided SQL statement.
* Normalization means transformation of all forms of equivalent SQL statements to the same basis form.
* Addresses:
* <li>optional braces
* <li>optional default values
* <li>forced quotation of identifiers
* <li>etc.
*
* Used by SQL synchronization.
*
* @ingroup sqlparser
*/
class WBPUBLICBACKEND_PUBLIC_FUNC Sql_normalizer
{
public:
typedef boost::shared_ptr<Sql_normalizer> Ref;
virtual ~Sql_normalizer() {}
protected:
Sql_normalizer() : _delimiter("\\") {}
public:
void delimiter(std::string val) { _delimiter= val; }
virtual std::string normalize(const std::string &sql, const std::string &schema_name)= 0;
virtual std::string remove_inter_token_spaces(const std::string &text);
protected:
std::string _delimiter;
};
#endif // _SQL_NORMALIZER_H_
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