~drizzle-trunk/drizzle/development

2131.12.1 by Brian Aker
Example for David.
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/* - mode: c; c-basic-offset: 2; indent-tabs-mode: nil; -*-
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 *  vim:expandtab:shiftwidth=2:tabstop=2:smarttab:
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 *
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 * Copyright (C) 2011, Brian Aker
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 * All rights reserved.
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 *
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 * Redistribution and use in source and binary forms, with or without
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 * modification, are permitted provided that the following conditions are met:
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 *
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 *   * Redistributions of source code must retain the above copyright notice,
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 *     this list of conditions and the following disclaimer.
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 *   * Redistributions in binary form must reproduce the above copyright notice,
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 *     this list of conditions and the following disclaimer in the documentation
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 *     and/or other materials provided with the distribution.
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 *   * Neither the name of Patrick Galbraith nor the names of its contributors
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 *     may be used to endorse or promote products derived from this software
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 *     without specific prior written permission.
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 *
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 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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 * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
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 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
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 * THE POSSIBILITY OF SUCH DAMAGE.
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 */
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2234 by Brian Aker
Mass removal of ifdef/endif in favor of pragma once.
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#pragma once
2131.12.1 by Brian Aker
Example for David.
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#include <drizzled/error_t.h>
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#include <queue>
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#include <stdexcept>
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namespace drizzled {
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namespace sql {
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class ResultSet;
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class Exception :  public std::runtime_error
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{
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public:
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  Exception(std::string reason, std::string sql_state, drizzled::error_t error_arg) :
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    std::runtime_error(reason),
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    _error_code(error_arg),
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    _sql_state(sql_state),
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    _reason(reason)
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  {
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    if (_sql_state.length() != 5)
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      _sql_state= "HY000";
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  }
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  Exception() :
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    std::runtime_error("no error"),
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    _error_code(drizzled::EE_OK),
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    _sql_state("00000")
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  {
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  }
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  Exception(std::string reason, drizzled::error_t error_arg) :
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    std::runtime_error(reason),
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    _error_code(error_arg),
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    _reason(reason)
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  {
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    _sql_state= "00000";
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  }
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  ~Exception () throw ()
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  { }
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  drizzled::error_t getErrorCode() const
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  {
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    return _error_code;
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  }
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  const std::string &getErrorMessage() const
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  {
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    return _reason;
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  }
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  Exception getNextException() const
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  {
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    if (_next_exception.empty())
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    {
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      return Exception();
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    }
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    Exception tmp= _next_exception.front();
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    _next_exception.pop();
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    return Exception();
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  }
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  const std::string &getSQLState() const
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  {
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    return _sql_state;
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  }
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protected:
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  friend class ResultSet;
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  void setNextException(Exception arg) 
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  {
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    (void)arg;
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    return;
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  }
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private:
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  drizzled::error_t _error_code; // Vendor, ie our, code
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  std::string _sql_state;
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  std::string _reason;
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  mutable std::queue <Exception> _next_exception;
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};
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std::ostream& operator<<(std::ostream& output, const Exception &arg);
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} // namespace sql 
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} // namespace drizzled
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