NAME

       Attean::SimpleQueryEvaluator - Simple query evaluator

VERSION

       This document describes Attean::SimpleQueryEvaluator version 0.030

SYNOPSIS

         use v5.14;
         use Attean;
         my $algebra = Attean->get_parser('SPARQL')->parse('SELECT * WHERE { ... }');
         my $active_graph = Attean::IRI->new('http://example.org/');
         my $e = Attean::SimpleQueryEvaluator->new( model => $model );
         my $iter = $e->evaluate( $algebra, $active_graph );

DESCRIPTION

       The Attean::SimpleQueryEvaluator class implements a simple query evaluator that, given an
       Attean::API::Algebra and a Attean::API::Model object, evaluates the query represented by the algebra
       using data from the model, and returns a query result.

ATTRIBUTES

       "model"
           The Attean::API::Model object used for query evaluation.

       "default_graph"
           The Attean::API::IRI object representing the default graph in the "model".  The default graph will be
           excluded from enumeration of graph names for query features such as "GRAPH ?g {}".

METHODS

       "evaluate( $algebra, $active_graph )"
           Returns  an  Attean::API::Iterator  object  with  results  produced  by evaluating the query $algebra
           against the evaluator's "model", using the supplied $active_graph.

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--2020 Gregory Todd Williams.  This program is free software; you can redistribute it
       and/or modify it under the same terms as Perl itself.

perl v5.32.1                                       2021-02-14                  Attean::SimpleQueryEvaluator(3pm)