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NAME
    AtteanX::Store::SPARQL - Attean SPARQL store

SYNOPSIS
      my $store = Attean->get_store('SPARQL')->new(endpoint_url => $url);

DESCRIPTION
    This implements a simple immutable triple store, which simply allows
    programmers to use Attean facilities to query remote SPARQL endpoints.

    This distribution also brings a corresponding AtteanX::Model::SPARQL,
    which allows query plans to be made, and a AtteanX::Plan::SPARQLBGP plan
    class, which contains a rudimentary cost estimate that attempts to avoid
    sending Cartesian joins to remote endpoints if possible.

  Attributes and methods
    `endpoint_url`
        The URL of a remote SPARQL endpoint. Will be coerced into a URI
        object, so it may be set as a string or whatever. Required attribute.

    `ua`
        An LWP::UserAgent object to use for remote queries. Will be set to a
        reasonable default if not supplied.

    `get_triples`
        Method to query the remote endpoint, as required by
        Attean::API::TripleStore.

    `count_triples`
        Reimplemented using an aggregate query for greater efficiency.

    `get_sparql($sparql, [ $ua ])`
        Will submit the given $sparql query to the above `endpoint_url`
        attribute. Optionally, you may pass an LWP::UserAgent, if not it will
        use the user agent set using the `ua` method. Will return an iterator
        with the results if the request is successful.

BUGS
    Please report any bugs to
    <https://github.com/kjetilk/p5-atteanx-store-sparql/issues>.

ACKNOWLEDGEMENTS
    This module is heavily influenced by RDF::Trine::Store::SPARQL.

AUTHOR
    Kjetil Kjernsmo <kjetilk@cpan.org>.

COPYRIGHT AND LICENCE
    This software is copyright (c) 2015, 2016 by Kjetil Kjernsmo and Gregory
    Todd Williams.

    This is free software; you can redistribute it and/or modify it under the
    same terms as the Perl 5 programming language system itself.

DISCLAIMER OF WARRANTIES
    THIS PACKAGE IS PROVIDED "AS IS" AND WITHOUT ANY EXPRESS OR IMPLIED
    WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED WARRANTIES OF
    MERCHANTIBILITY AND FITNESS FOR A PARTICULAR PURPOSE.

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