RDF::Query::Util - Miscellaneous utility functions to support work with RDF::Query.
This document describes RDF::Query::Util version 2.918.
use RDF::Query::Util; my $query = &RDF::Query::Util::cli_make_query; my $model = &RDF::Query::Util::cli_make_model; $query->execute( $model ); ...
Returns a query object, model, and args HASHref based on the arguments in @ARGV. These arguments are parsed using
Returns a RDF::Query object based on the arguments in @ARGV. These arguments are parsed using
&cli_parse_args. If the -e flag is not present, the query will be loaded from a file named by the argument in @ARGV immediately following the final argument parsed by
make_model with arguments from
@ARGV, returning the constructed model object.
cli_make_model will usually be called after cli_make_query, allowing a typical CLI invocation to look like `prog.pl [flags] [query file] [data files]`.
make_model ( @files )
Returns a model object suitable for use in a call to
$query->execute, loaded with RDF from files and/or URLs listed in @files. This model may be any of the supported models, but as currently implemented will be a RDF::Trine::Model object.
Parses CLI arguments from @ARGV and returns a HASH with the recognized key/values. The allowable arguments are listed below.
start_endpoint ( $model, $port )
Starts an SPARQL endpoint HTTP server on port $port.
If called in list context, returns the PID and the actual port the server bound to. If called in scalar context, returns only the port.
Specifies the query string str.
Specifies the query language lang used. This should be one of: sparql, sparql11, or rdql.
Turns on optimization.
Turns off optimization.
Specifies the perl class used to construct the query object. Defaults to
Implies -c RDF::Query::Federate.
Specifies the URL or path to a file loc which contains an RDF service description. The described service is used as an underlying triplestore for query answering. Implies -f.
Specifies the URL of a remove SPARQL endpoint to be used as a data source. The endpoint is used as an underlying triplestore for query answering. Implies -f.
Specifies the database type to use for the underlying data model.
Gregory Todd Williams <email@example.com>