man AtteanX::Store::LDF (3): Linked Data Fragment RDF store

SYNOPSIS

use v5.14;
use Attean;
use Attean::RDF qw(iri blank literal);
use AtteanX::Store::LDF;
my $uri = 'http://fragments.dbpedia.org/2014/en';
my $store = Attean->get_store('LDF')->new(start_url => $uri);
my $iter = $store->get_triples(undef,undef,literal("Albert Einstein"));
while (my $triple = $iter->next) {
say $triple->subject->ntriples_string .
" " .
$triple->predicate->ntriples_string .
" " .
$triple->object->ntriples_string .
" .";
}

DESCRIPTION

AtteanX::Store::LDF provides a triple-store connected to a Linked Data Fragment server. For more information on Triple Pattern Fragments consult <http://linkeddatafragments.org/>

METHODS

Beyond the methods documented below, this class inherits methods from the Attean::API::TripleStore class.

new( start_url => $start_url ): Returns a new LDF-backed storage object. The required "start_url" argument is a URL pointing at any Linked Data Fragment. The attribure will be coerced, so it can be a string, a URI object, etc.
count_triples_estimate( $subject, $predicate, $object ): Return the count of triples matching the specified subject, predicate and objects.
get_triples( $subject, $predicate, $object): Returns a stream object of all statements matching the specified subject, predicate and objects. Any of the arguments may be undef to match any value.
cost_for_plan($plan): Returns an cost estimation for a single LDF triple based on estimates. The cost will be in the interval 10-1000 if the supplied argument is a AtteanX::Plan::LDF::Triple, undef otherwise.

BUGS

Please report any bugs or feature requests to through the GitHub web interface at <https://github.com/phochste/AtteanX-Store-LDF>.

AUTHOR

Patrick Hochstenbach "<[email protected]>" Kjetil Kjernsmo <[email protected]>.

COPYRIGHT