ARC provides a RemoteStore component (starting with revision 2008-07-04 and based on Morten Frederiksen's excellent RemoteEndpointPlugin) which makes it possible to work with SPARQL (and SPARQL+) endpoints (almost) as if they were local stores (please see "Using the RDF Store" for general methods and options).
Setup
A remote store is instantiated like a local store, but with aremote_store_endpoint configuration parameter instead of database settings:/* ARC2 static class inclusion */
include_once('path/to/arc/ARC2.php');
/* configuration */
$config = array(
/* remote endpoint */
'remote_store_endpoint' => 'http://example.com/sparql',
);
/* instantiation */
$store = ARC2::getRemoteStore($config);Running Queries
$q = 'SELECT ...'; $rows = $store->query($q, 'rows'); ...
Unsupported methods
A couple of the usual store methods are not available while working with remote endpoints:-
hasSetting(), getSetting(), setSetting() -
reset() -
drop() -
dump()(you can use DUMP as non-standard SPARQL query, if supported) -
createBackup() -
renameTo() -
replicateTo() -
consolidation methods