/sqlite3cc

/*

 * exception.h

 *

 * Copyright (C) 2009 Tim Marston <edam@waxworlds.org>

 *

 * This file is part of sqlite3cc (hereafter referred to as "this program").

 * See http://www.waxworlds.org/edam/software/sqlite3cc for more information.

 *

 * This program is free software: you can redistribute it and/or modify

 * it under the terms of the GNU Lesser General Public License as published

 * by the Free Software Foundation, either version 3 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 Lesser General Public License for more details.

 *

 * You should have received a copy of the GNU Lesser General Public License

 * along with this program.  If not, see <http://www.gnu.org/licenses/>.

 */

#ifndef SQLITE3CC_EXCEPTION_H_

#define SQLITE3CC_EXCEPTION_H_

#include <sqlite3.h>

#include <stdexcept>

namespace sqlite

{

/**

 * Main (base) sqlite exception class.

 */

class sqlite_error

	:

	public std::exception

{

//______________________________________________________________________________

//                                                                 instantiation

public:

	/**

	 * Constructor that takes an sqlite error code and determines it's own

	 * error message

	 * @param error_code the sqlite error code

	 */

	explicit sqlite_error(

		int error_code );

	/**

	 * Constructor that allows the creation of an sqlite error with a custom

	 * message.

	 * @param message a customer error message string

	 * @param error_code the sqlite error code

	 */

	explicit sqlite_error(

		const std::string &message,

		int error_code = SQLITE_ERROR );

	virtual ~sqlite_error() throw( );

//______________________________________________________________________________

//                                                              public interface

public:

	/**

	 * Get the sqlite error code associated with this error

	 * @returns the sqlite error code

	 */

	int get_error_code() const;

	/**

	 * Get the error message

	 * @returns the error message

	 */

	virtual const char* what() const throw( );

//______________________________________________________________________________

//                                                                implementation

private:

	/**

	 * Retrieve an automatic error message for a given sqlite error code

	 * @param the sqlite error code

	 * @returns the automatic string

	 */

	const std::string &get_error_message(

		int error_code );

	/** the error code */

	int _error_code;

	/** the message string */

	std::string _message;

};

/**

 * An sqlite error that indicates the database was busy

 */

class sqlite_busy

	:

	public sqlite_error

{

public:

	sqlite_busy()

		:

		sqlite_error( "database was busy", SQLITE_BUSY )

	{ }

};

} // namespace sqlite

#endif /* SQLITE3CC_EXCEPTION_H_ */