79 lines
2.4 KiB
C++
79 lines
2.4 KiB
C++
/* This file is part of Mapnik (c++ mapping toolkit)
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* Copyright (C) 2005 Artem Pavlenko
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*
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* Mapnik is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version 2
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* of the License, or any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
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*/
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//$Id: postgis.hpp 44 2005-04-22 18:53:54Z pavlenko $
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#ifndef POSTGIS_HPP
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#define POSTGIS_HPP
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#include "mapnik.hpp"
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#include "connection_manager.hpp"
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#include <boost/lexical_cast.hpp>
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#include <set>
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using namespace mapnik;
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class PostgisDatasource : public datasource
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{
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static const std::string GEOMETRY_COLUMNS;
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static const std::string SPATIAL_REF_SYS;
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const std::string uri_;
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const std::string username_;
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const std::string password_;
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const std::string table_;
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std::string geometryColumn_;
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int type_;
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int srid_;
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mapnik::Envelope<double> extent_;
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layer_descriptor desc_;
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ConnectionCreator<Connection> creator_;
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static std::string name_;
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public:
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static std::string name();
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int type() const;
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featureset_ptr features(const query& q) const;
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mapnik::Envelope<double> const& envelope() const;
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layer_descriptor const& get_descriptor() const;
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PostgisDatasource(const Parameters ¶ms);
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~PostgisDatasource();
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private:
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static std::string table_from_sql(const std::string& sql);
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PostgisDatasource(const PostgisDatasource&);
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PostgisDatasource& operator=(const PostgisDatasource&);
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};
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class PostgisFeatureset : public Featureset
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{
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private:
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ref_ptr<ResultSet> rs_;
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unsigned num_attrs_;
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mutable int totalGeomSize_;
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mutable int count_;
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public:
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PostgisFeatureset(const ref_ptr<ResultSet>& rs,unsigned num_attrs);
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void dispose();
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Feature* next();
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~PostgisFeatureset();
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private:
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PostgisFeatureset(const PostgisFeatureset&);
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const PostgisFeatureset& operator=(const PostgisFeatureset&);
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};
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#endif //POSTGIS_HPP
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