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Diffstat (limited to 'raul/RDFQuery.hpp')
-rw-r--r-- | raul/RDFQuery.hpp | 68 |
1 files changed, 68 insertions, 0 deletions
diff --git a/raul/RDFQuery.hpp b/raul/RDFQuery.hpp new file mode 100644 index 0000000..76ae128 --- /dev/null +++ b/raul/RDFQuery.hpp @@ -0,0 +1,68 @@ +/* This file is part of Raul. + * Copyright (C) 2007 Dave Robillard <http://drobilla.net> + * + * Raul is free software; you can redistribute it and/or modify it under the + * terms of the GNU General Public License as published by the Free Software + * Foundation; either version 2 of the License, or (at your option) any later + * version. + * + * Raul 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 General Public License for details. + * + * You should have received a copy of the GNU General Public License along + * with this program; if not, write to the Free Software Foundation, Inc., + * 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA + */ + +#ifndef RAUL_RDF_QUERY_HPP +#define RAUL_RDF_QUERY_HPP + +#include <map> +#include <list> +#include <glibmm/ustring.h> +#include <raul/RDFWorld.hpp> +#include <raul/Namespaces.hpp> + +namespace Raul { +namespace RDF { + +class World; +class Model; + + +/** Pretty wrapper for a SPARQL query. + * + * Automatically handles things like prepending prefixes, etc. + */ +class Query { +public: + typedef std::map<std::string, Node> Bindings; // FIXME: order? better to use int + typedef std::list<Bindings> Results; + + Query(const World& world, Glib::ustring query) + { + // Prepend prefix header + for (Namespaces::const_iterator i = world.prefixes().begin(); + i != world.prefixes().end(); ++i) { + _query += "PREFIX "; + _query += i->first + ": <" + i->second + ">\n"; + } + _query += "\n"; + _query += query; + } + + Results run(World& world, Model& model, const Glib::ustring base_uri="") const; + + Glib::ustring string() const { return _query; }; + +private: + Glib::ustring _query; +}; + + +} // namespace RDF +} // namespace Raul + +#endif // RAUL_RDF_QUERY_HPP + |