RDF::Query::Algebra::Triple - Algebra class for Triple patterns
This document describes RDF::Query::Algebra::Triple version 2.914.
Beyond the methods documented below, this class inherits methods from the RDF::Query::Algebra class.
new ( $s, $p, $o )
Returns a new Triple structure.
as_sparql
Returns the SPARQL string for this algebra expression.
as_hash
Returns the query as a nested set of plain data structures (no objects).
as_spin ( $model )
Adds statements to the given model to represent this algebra object in the SPARQL Inferencing Notation (http://www.spinrdf.org/).
referenced_blanks
Returns a list of the blank node names used in this algebra expression.
subsumes ( $pattern )
Returns true if the triple subsumes the pattern, false otherwise.
bf ()
Returns a string representing the state of the nodes of the triple (bound or free).
distinguish_bnode_variables
Returns a new Quad object with blank nodes replaced by distinguished variables.
label ( $label => $value )
Sets the named $label to $value for this triple object. If no $value is given, returns the current label value, or undef if none exists.
$label
$value
Gregory Todd Williams <gwilliams@cpan.org>
To install RDF::Query, copy and paste the appropriate command in to your terminal.
cpanm
cpanm RDF::Query
CPAN shell
perl -MCPAN -e shell install RDF::Query
For more information on module installation, please visit the detailed CPAN module installation guide.