rdf::query::servicedescription(3pm) [debian man page]

RDF::Query::ServiceDescription(3pm)			User Contributed Perl Documentation		       RDF::Query::ServiceDescription(3pm)

NAME

       RDF::Query::ServiceDescription - Class for describing federated query data sources.

VERSION

       This document describes RDF::Query::ServiceDescription version 2.908.

METHODS

       "new ( $service_uri, %data )"
       "new_from_uri ( $url )"
	   Creates a new service description object using the DARQ-style service description data located at $url.

       "new_with_model ( $model )"
	   Creates a new service description object using the DARQ-style service description data loaded in the supplied $model object.

       "url"
	   Returns the endpoint URL of the service.

       "size"
	   Returns the number of triples the service claims to have.

       "label"
	   Returns the label of the service.

       "definitive"
	   Returns true if the endpoint claims to have definitive information.

       "capabilities"
	   Returns an ARRAY reference of capabilities (as HASH references) of the service.  Each capability will contain information on size,
	   selectivity, any subject-object filter, and required predicate, with the following classes:

	     $capability->{object_selectivity} # RDF::Trine::Node::Literal xsd:double
	     $capability->{sofilter} # RDF::Query::Expression
	     $capability->{size} # RDF::Trine::Node::Literal xsd:integer
	     $capability->{pred} # RDF::Trine::Node::Resource

       "patterns"
	   Returns an ARRAY reference of RDF::Query::Algebra::BasicGraphPattern objects representing common patterns used by the endpoint.

       "computed_statement_generator"
	   Returns a closure appropriate for passing to "RDF::Query->add_computed_statement_generator" to generate statement iterators for the
	   remote service.

	   This closure takes "($query, $bridge, \%bound, $subj, $pred, $obj [, $context ] )" as arguments and returns either "undef" if no
	   statements can be generated given the arguments, or a "RDF::Trine::Iterator::Graph" iterator containing statements matching "$subj,
	   $pred, $obj [, $context ]".

       "answers_triple_pattern ( $triple )"
	   Returns true if the service described by this object can answer queries comprised of the supplied triple pattern.

AUTHOR

	Gregory Todd Williams <gwilliams@cpan.org>

perl v5.14.2							    2012-01-31				       RDF::Query::ServiceDescription(3pm)

RDF::Trine::Store::Redland(3pm) 			User Contributed Perl Documentation			   RDF::Trine::Store::Redland(3pm)

NAME

       RDF::Trine::Store::Redland - Redland-backed RDF store for RDF::Trine

VERSION

       This document describes RDF::Trine::Store::Redland version 1.000

SYNOPSIS

	use RDF::Trine::Store::Redland;

DESCRIPTION

       RDF::Trine::Store::Redland provides an RDF::Trine::Store interface to the Redland RDF store.

METHODS

       Beyond the methods documented below, this class inherits methods from the RDF::Trine::Store class.

       "new ( $store )"
	   Returns a new storage object using the supplied RDF::Redland::Model object.

       "new_with_config ( $hashref )"
	   Returns a new storage object configured with a hashref with certain keys as arguments.

	   The "storetype" key must be "Redland" for this backend.

	   The following keys may also be used:

	   "store_name"
	       The name of the storage factory (currently "hashes", "mysql", "memory", "file", "postgresql", "sqlite", "tstore", "uri" or
	       "virtuoso").

	   "name"
	       The name of the storage.

	   "options"
	       Any other options to be passed to RDF::Redland::Storage as a hashref.

       "new_with_object ( $redland_model )"
	   Initialize the store with a RDF::Redland::Model object.

       "temporary_store"
	   Returns a temporary (empty) triple store.

       "get_statements ( $subject, $predicate, $object [, $context] )"
	   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.

       "get_contexts"
	   Returns an RDF::Trine::Iterator over the RDF::Trine::Node objects comprising the set of contexts of the stored quads.

       "add_statement ( $statement [, $context] )"
	   Adds the specified $statement to the underlying model.

       "remove_statement ( $statement [, $context])"
	   Removes the specified $statement from the underlying model.

       "remove_statements ( $subject, $predicate, $object [, $context])"
	   Removes the specified $statement from the underlying model.

       "count_statements ( $subject, $predicate, $object, $context )"
	   Returns a count of all the statements matching the specified subject, predicate, object, and context. Any of the arguments may be undef
	   to match any value.

       "size"
	   Returns the number of statements in the store.

       "supports ( [ $feature ] )"
	   If $feature is specified, returns true if the feature is supported by the store, false otherwise. If $feature is not specified, returns
	   a list of supported features.

BUGS

       Please report any bugs or feature requests to through the GitHub web interface at <https://github.com/kasei/perlrdf/issues>.

AUTHOR

       Gregory Todd Williams  "<gwilliams@cpan.org>"

COPYRIGHT

       Copyright (c) 2006-2012 Gregory Todd Williams. This program is free software; you can redistribute it and/or modify it under the same terms
       as Perl itself.

perl v5.14.2							    2012-06-29					   RDF::Trine::Store::Redland(3pm)