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/*
* exception.h
*
* Copyright (C) 2009 Tim Marston <tim@ed.am>
*
* This file is part of sqlite3cc (hereafter referred to as "this program").
* See http://ed.am/dev/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>
#include <string>
namespace sqlite
{
class connection;
/**
* Main (base) sqlite exception class.
*/
class sqlite_error
:
public std::exception
{
//______________________________________________________________________________
// instantiation
public:
/**
* Constructor that takes an sqlite result code and a connection from which
* to determine it's error message.
*
* @param connection a reference to a connection
* @param code the sqlite result code
* @see sqlite_errmsg()
*/
explicit sqlite_error(
connection &connection,
int code );
/**
* Constructor that takes an sqlite result code and determines it's own
* generic error message.
*
* @param code the sqlite result code
*/
explicit sqlite_error(
int code );
/**
* Constructor that allows the creation of an sqlite result with a custom
* message.
*
* @param message a customer error message string
* @param code the sqlite result code
*/
explicit sqlite_error(
const std::string &message,
int code = SQLITE_ERROR );
virtual ~sqlite_error() throw( );
//______________________________________________________________________________
// public interface
public:
/**
* Get the sqlite result code associated with this error.
*
* @returns the sqlite result code
*/
int get_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 result code.
*
* @param the sqlite result code
* @returns the automatic string
*/
const std::string &get_message(
int code );
/** the result code */
int _code;
/** the message string */
std::string _message;
};
} // namespace sqlite
#endif /* SQLITE3CC_EXCEPTION_H_ */
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