NAME

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

VERSION

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

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>