RDF::Trine::Store::LDF - RDF Store proxy for a Linked Data Fragment endpoint
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"; }
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/>.
Beyond the methods documented below, this class inherits methods from the RDF::Trine::Store class.
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.
Returns a new RDF::Trine::Store object configured by a hashref with the url as required key.
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.
Returns an iterator object of all bindings matching the specified graph pattern.
Not supported.
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.
Returns the number of statements in the store.
Patrick Hochstenbach, patrick.hochstenbach at ugent.be
patrick.hochstenbach at ugent.be
Gregory Todd Williams, greg@evilfunhouse.com
greg@evilfunhouse.com
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.
To install RDF::LDF, copy and paste the appropriate command in to your terminal.
cpanm
cpanm RDF::LDF
CPAN shell
perl -MCPAN -e shell install RDF::LDF
For more information on module installation, please visit the detailed CPAN module installation guide.