1RDF::Query::Federate(3)User Contributed Perl DocumentatioRnDF::Query::Federate(3)
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NAME

6       RDF::Query::Federate - A subclass of RDF::Query for efficient federated
7       query execution.
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VERSION

10       This document describes RDF::Query::Federate version 2.918.
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STATUS

13       This module's API and functionality should be considered deprecated.
14       If you need functionality that this module provides, please get in
15       touch <http://www.perlrdf.org/>.
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SYNOPSIS

18        my $service = RDF::Query::ServiceDescription->new( $url );
19        my $query = new RDF::Query::Federate ( $sparql );
20        $query->add_service( $service );
21        my $stream = $query->execute();
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DESCRIPTION

24       ...
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METHODS

27       "new ( $query, \%options )"
28       "new ( $query, $base_uri, $languri, $lang )"
29           Returns a new RDF::Query::Federate object for the specified $query.
30           The query language defaults to SPARQLP, but may be set specifically
31           by specifying either $languri or $lang, whose acceptable values
32           are:
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34             $lang: 'rdql', 'sparql11', or 'sparql'
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36             $languri: 'http://www.w3.org/TR/rdf-sparql-query/', or 'http://jena.hpl.hp.com/2003/07/query/RDQL'
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38       "add_service ( $service_description )"
39           Adds the service described by $service_description to the query's
40           list of data sources.
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42       "services"
43       "algebra_fixup ( $algebra, $bridge, $base_uri, $ns )"
44           Called in the fixup method of ::Algebra classes, returns either an
45           optimized ::Algebra object ready for execution, or undef (in which
46           case it will be prepared for execution by the ::Algebra::* class
47           itself.
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AUTHOR

50        Gregory Todd Williams <gwilliams@cpan.org>
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54perl v5.34.0                      2021-07-22           RDF::Query::Federate(3)
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