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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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* Copyright (C) 2011, Brian Aker
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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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* * 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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* 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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#ifndef DRIZZLED_SQL_RESULT_SET_H
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#define DRIZZLED_SQL_RESULT_SET_H
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#include <drizzled/visibility.h>
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#include <drizzled/sql/exception.h>
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#include <drizzled/sql/result_set_meta_data.h>
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namespace plugin { class Client; }
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class DRIZZLED_API ResultSet
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// First version of API stores everything as strings
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inline const std::string &value() const
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inline bool isNull() const
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inline void set_value(const std::string &ref)
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inline void set_null()
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assert(_value.empty());
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typedef std::vector< Column > Row;
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typedef std::vector< Row > Result;
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static ResultSet *make(size_t field_count)
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return new ResultSet(field_count);
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// Special case for us (throw is just too damn slow for internal usage, or
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bool isNoThrow() const
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const std::string getString(size_t column_number) const ;
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bool isNull(size_t column_number) const;
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const ResultSetMetaData &getMetaData() const;
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// Our functions to use instead of exceptions
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sql::Exception getException() const;
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ResultSet(size_t fields) :
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_has_next_been_called(false),
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_current_row(_results.end()),
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void setColumn(size_t column_number, const std::string &arg);
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void setColumnNull(size_t column_number);
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void pushException(const Exception &arg) const;
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private: // Member methods
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bool isMore(size_t column_number) const;
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private: // Member variables
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mutable bool _has_next_been_called;
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mutable Result::const_iterator _current_row;
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ResultSetMetaData _meta_data;
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// Because an error could come up during a fetch on const, we need to have
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mutable std::queue<Exception> _exceptions;
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std::ostream& operator<<(std::ostream& output, const ResultSet &result_set);
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} // namespace drizzled
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#endif /* DRIZZLED_SQL_RESULT_SET_H */