RDF::Query::Algebra::Triple(3)
Algebra class for Triple patterns
VERSION
This document describes RDF::Query::Algebra::Triple version 2.916.
METHODS
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.