NAME

RDF::Query::Algebra::Path - Algebra class for path patterns

VERSION

This document describes RDF::Query::Algebra::Path version 2.907.

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.

 Gregory Todd Williams <gwilliams@cpan.org>