RDF::Trine::Store::SPARQL - RDF Store proxy for a SPARQL endpoint
This document describes RDF::Trine::Store::SPARQL version 1.010
use RDF::Trine::Store::SPARQL;
RDF::Trine::Store::SPARQL provides a RDF::Trine::Store API to interact with a remote SPARQL endpoint.
Beyond the methods documented below, this class inherits methods from the RDF::Trine::Store class.
new ( $url )
Returns a new storage object that will act as a proxy for the SPARQL endpoint accessible via the supplied $url.
$url
new_with_config ( $hashref )
Returns a new storage object configured with a hashref with certain keys as arguments.
The storetype key must be SPARQL for this backend.
storetype
SPARQL
The following key must also be used:
url
The URL of the remote endpoint.
new_with_config ( \%config )
Returns a new RDF::Trine::Store object based on the supplied configuration hashref.
get_statements ( $subject, $predicate, $object [, $context] )
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 [, $context] )
Returns an iterator object of all bindings matching the specified graph pattern.
get_contexts
Returns an RDF::Trine::Iterator over the RDF::Trine::Node objects comprising the set of contexts of the stored quads.
add_statement ( $statement [, $context] )
Adds the specified $statement to the underlying model.
$statement
remove_statement ( $statement [, $context])
Removes the specified $statement from the underlying model.
remove_statements ( $subject, $predicate, $object [, $context])
count_statements ( $subject, $predicate, $object, $context )
Returns a count of all the statements matching the specified subject, predicate, object, and context. Any of the arguments may be undef to match any value.
size
Returns the number of statements in the store.
supports ( [ $feature ] )
If $feature is specified, returns true if the feature is supported by the store, false otherwise. If $feature is not specified, returns a list of supported features.
$feature
get_sparql ( $sparql )
Returns an iterator object of all bindings matching the specified SPARQL query.
Please report any bugs or feature requests to through the GitHub web interface at https://github.com/kasei/perlrdf/issues.
Gregory Todd Williams <gwilliams@cpan.org>
<gwilliams@cpan.org>
Copyright (c) 2006-2012 Gregory Todd Williams. This program is free software; you can redistribute it and/or modify it under the same terms as Perl itself.
To install RDF::Trine, copy and paste the appropriate command in to your terminal.
cpanm
cpanm RDF::Trine
CPAN shell
perl -MCPAN -e shell install RDF::Trine
For more information on module installation, please visit the detailed CPAN module installation guide.