NAME
Attean::QuadModel - RDF model backed by a quad-store
VERSION
This document describes Attean::QuadModel version 0.022
SYNOPSIS
use v5.14;
use Attean;
my $model = Attean::QuadModel->new( store => $store );
DESCRIPTION
The Attean::QuadModel class represents a model that is backed by a single Attean::API::QuadStore object. It conforms to the Attean::API::Model role.
The Attean::QuadModel constructor requires one named argument:
- store
-
A Attean::API::QuadStore object representing the backing quad-store.
METHODS
get_quads ( $subject, $predicate, $object, $graph )
-
Returns an Attean::API::Iterator for quads in the model that match the supplied
$subject
,$predicate
,$object
, and$graph
. Any of these terms may be undefined or a Attean::API::Variable object, in which case that term will be considered as a wildcard for the purposes of matching.The returned iterator conforms to both Attean::API::Iterator and Attean::API::QuadIterator.
plans_for_algebra( $algebra, $model, $active_graphs, $default_graphs )
-
Delegates to the underlying store if the store consumes Attean::API::CostPlanner.
cost_for_plan( $plan )
-
Delegates to the underlying store if the store consumes Attean::API::CostPlanner.
BUGS
Please report any bugs or feature requests to through the GitHub web interface at https://github.com/kasei/attean/issues.
SEE ALSO
AUTHOR
Gregory Todd Williams <gwilliams@cpan.org>
COPYRIGHT
Copyright (c) 2014--2019 Gregory Todd Williams. This program is free software; you can redistribute it and/or modify it under the same terms as Perl itself.