/home/tommi/tntdb/include/tntdb/postgresql/impl/resultrow.h

00001 /*
00002  * Copyright (C) 2005 Tommi Maekitalo
00003  * 
00004  * This library is free software; you can redistribute it and/or
00005  * modify it under the terms of the GNU Lesser General Public
00006  * License as published by the Free Software Foundation; either
00007  * version 2.1 of the License, or (at your option) any later version.
00008  * 
00009  * As a special exception, you may use this file as part of a free
00010  * software library without restriction. Specifically, if other files
00011  * instantiate templates or use macros or inline functions from this
00012  * file, or you compile this file and link it with other files to
00013  * produce an executable, this file does not by itself cause the
00014  * resulting executable to be covered by the GNU General Public
00015  * License. This exception does not however invalidate any other
00016  * reasons why the executable file might be covered by the GNU Library
00017  * General Public License.
00018  * 
00019  * This library is distributed in the hope that it will be useful,
00020  * but WITHOUT ANY WARRANTY; without even the implied warranty of
00021  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
00022  * Lesser General Public License for more details.
00023  * 
00024  * You should have received a copy of the GNU Lesser General Public
00025  * License along with this library; if not, write to the Free Software
00026  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
00027  */
00028 
00029 #ifndef TNTDB_POSTGRESQL_IMPL_RESULTROW_H
00030 #define TNTDB_POSTGRESQL_IMPL_RESULTROW_H
00031 
00032 #include <tntdb/bits/result.h>
00033 #include <tntdb/iface/irow.h>
00034 #include <libpq-fe.h>
00035 
00036 namespace tntdb
00037 {
00038   namespace postgresql
00039   {
00040     class Result;
00041 
00043     class ResultRow : public IRow
00044     {
00045         tntdb::Result tntdbResult; // keeps a reference to the result
00046         Result* result; // redundant type-safe pointer to tntdbResult
00047                         // (tntdbResult.getImpl() == result)
00048         size_type rownumber;
00049 
00050       public:
00051         ResultRow(Result* result, size_type rownumber);
00052 
00053         unsigned size() const;
00054         Value getValueByNumber(size_type field_num) const;
00055         Value getValueByName(const std::string& field_name) const;
00056 
00057         size_type getRowNumber() const   { return rownumber; }
00058         PGresult* getPGresult() const;
00059     };
00060   }
00061 }
00062 
00063 #endif // TNTDB_POSTGRESQL_IMPL_RESULTROW_H
00064