RDF::Query::Algebra::Quad(3) Algebra class for Quad patterns


This document describes RDF::Query::Algebra::Quad version 2.916.


Beyond the methods documented below, this class inherits methods from the RDF::Query::Algebra class.
"new ( $s, $p, $o, $g )"
Returns a new Quad structure.
Returns the SPARQL string for this algebra expression.
Returns the query as a nested set of plain data structures (no objects).
Returns a list of the blank node names used in this algebra expression.
"qualify_uris ( \%namespaces, $base_uri )"
Returns a new algebra pattern where all referenced Resource nodes representing QNames (ns:local) are qualified using the supplied %namespaces.
"bf ()"
Returns a string representing the state of the nodes of the triple (bound or free).
Returns a new Quad object with blank nodes replaced by distinguished variables.
"label ( $label => $value )"
Sets the named $label to $value for this quad object. If no $value is given, returns the current label value, or undef if none exists.


 Gregory Todd Williams <[email protected]>