NAME

       RDF::Trine::Store::LDF - RDF Store proxy for a Linked Data Fragment endpoint

SYNOPSIS

           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";
           }

DESCRIPTION

       RDF::Trine::Store::LDF provides a RDF::Trine::Store API to interact with a remote Linked Data Fragment
       endpoint. For details see: <http://linkeddatafragments.org/>.

METHODS

       Beyond the methods documented below, this class inherits methods from the RDF::Trine::Store class.

       new({ url => url })
           Returns a new RDF::Trine::Store object that will act as a proxy for the Linked Data Fragment endpoint
           accessible via the supplied $url.

           Expertimental:  more  than  one url as an ARRAY reference can be provided for an federated query over
           many LDF endpoints.

       new_with_config( $hashref )
           Returns a new RDF::Trine::Store object configured by a hashref with the url as required key.

       get_statements( $subject, $predicate, $object )
           Returns a stream object of all statements matching the specified subject, predicate and objects.  Any
           of the arguments may be undef to match any value.

       get_pattern( $bgp )
           Returns an iterator object of all bindings matching the specified graph pattern.

       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 specified subject, predicate and object.   Any  of
           the arguments may be undef to match any value.

       size
           Returns the number of statements in the store.

       supports ( [ $feature ] )
           Not supported.

AUTHOR

       Patrick Hochstenbach, "patrick.hochstenbach at ugent.be"

CONTRIBUTORS

       Gregory Todd Williams, "greg@evilfunhouse.com"

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.

perl v5.36.0                                       2023-07-03                        RDF::Trine::Store::LDF(3pm)