NAME¶
RDF::Query::Algebra::Triple - Algebra class for Triple patterns
VERSION¶
This document describes RDF::Query::Algebra::Triple version 2.908.
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.
AUTHOR¶
Gregory Todd Williams <gwilliams@cpan.org>