NAME
RDF::Query::Algebra::Path - Algebra class for path patterns
VERSION
This document describes RDF::Query::Algebra::Path version 2.919.
METHODS
Beyond the methods documented below, this class inherits methods from the RDF::Query::Algebra class.
new ( $start, [ $op, @paths ], $end, $graph )-
Returns a new Path structure.
construct_args-
Returns a list of arguments that, passed to this class' constructor, will produce a clone of this algebra pattern.
path-
Returns the path description for this path expression.
start-
Returns the path origin node.
end-
Returns the path destination node.
graph-
Returns the named graph.
distinguish_bnode_variables-
Returns a new Path object with blank nodes replaced by distinguished variables.
bounded_length-
Returns true if the path is of bounded length.
sse-
Returns the SSE string for this algebra expression.
as_sparql-
Returns the SPARQL string for this algebra expression.
type-
Returns the type of this algebra expression.
referenced_variables-
Returns a list of the variable names used in this algebra expression.
potentially_bound-
Returns a list of the variable names used in this algebra expression that will bind values during execution.
definite_variables-
Returns a list of the variable names that will be bound after evaluating this algebra expression.
AUTHOR
Gregory Todd Williams <gwilliams@cpan.org>