RDF::T...e::LDF(3pm)

💖 RDF::Trine::Store::LDF 💖

okay bestie, so this is a page from the User Contributed Perl Documentation, section 3pm (that's the Perl module manpages, iykyk). It's all about RDF::Trine::Store::LDF — a lil RDF Store proxy that lets you vibe with a remote Linked Data Fragment endpoint. ✨

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🦋 NAME 🦋

RDF::Trine::Store::LDF — it's an RDF Store proxy, but make it a Linked Data Fragment endpoint. no cap. 🌈

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✨ SYNOPSIS ✨

like, here's the whole vibe in code, bestie:

    use RDF::Trine::Store::LDF;
    use RDF::Trine::Store;

    my $store = RDF::Trine::Store->new_with_config({
            storetype => 'LDF',
            url => $url
    });

    my $it = $store->get_statements();

    while (my $st = $it->next) {
        # $st is a RDF::Trine::Statement
        print "$st\n";
    }

    # Or query the store with SPAQRL

    use RDF::Query;
    my $model =  RDF::Trine::Model->new($store);

    my $rdf_query = RDF::Query->new(<<EOF);
    .
    .
    SPARQL
    .
    .
    EOF

    my $iter = $rdf_query->execute($model);

    while (my $s = $iter->next) {
        # $s is a RDF::Trine::VariableBinding
        print $s->value . "\n";
    }

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🌸 DESCRIPTION 🌸

So RDF::Trine::Store::LDF hands you an RDF::Trine::Store API so you can chat with a remote Linked Data Fragment endpoint. it's giving long-distance relationship but with RDF 🫶

For the deets, go look at: <http://linkeddatafragments.org/> — it's literally right there.

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💅 METHODS 💅

Beyond the methods we're about to spill the tea on below, this class inherits a whole bunch of methods from the RDF::Trine::Store class. iconic behaviour honestly. 👑

• new({ url => url }) — Returns a new RDF::Trine::Store object that's gonna act as a proxy for the Linked Data Fragment endpoint you can reach via the $url you passed in.

⚠️ Expertimental (that's a typo in the original and I'm keeping it FR FR, do not @ me): you can actually pass more than one url as an ARRAY reference, and then it does a federated query over a whole bunch of LDF endpoints. main character energy, honestly.

• new_with_config( $hashref ) — Returns a new RDF::Trine::Store object, configured by a hashref. the url is the required key — don't forget it bestie, it's required. 🚨
• get_statements( $subject, $predicate, $object ) — Returns a stream object of all the statements matching the subject, predicate and objects you asked for. Any of the args can be undef and that means "match literally anything". wildcard queen. 🎀
• get_pattern( $bgp ) — Returns an iterator object of all the bindings matching the graph pattern you specified. ✨
• get_contexts — Not supported. 💀
• add_statement ( $statement [, $context] ) — Not supported. 💀
• remove_statement ( $statement [, $context]) — Not supported. 💀
• remove_statements ( $subject, $predicate, $object [, $context]) — Not supported. 💀
• count_statements ( $subject, $predicate, $object ) — Returns a count of all the statements matching the subject, predicate and object you specified. Any of the args can be undef to match any value. (same wildcard rules as above, slay) 🌟
• size — Returns the number of statements in the store. the literal headcount. 🔢
• supports ( [ $feature ] ) — Not supported. 💀

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👑 AUTHOR 👑

Patrick Hochstenbach, "patrick.hochstenbach at ugent.be" — the icon who made this happen. 🫶

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🌈 CONTRIBUTORS 🌈

Gregory Todd Williams, "greg@evilfunhouse.com" — shoutout to the co-star. ⭐

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🎀 LICENSE 🎀

This program is free software; you can redistribute it and/or modify it under the terms of either: the GNU General Public License as published by the Free Software Foundation; or the Artistic License.

See <http://dev.perl.org/licenses/> for more information.

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and that's the whole page, bestie 💖 this one's perl v5.36.0, dated 2023-07-03. go forth and proxy those Linked Data Fragments, you absolute legend 🌸✨🎀