RDF::Query::Algebra::Path - Algebra class for path patterns
This document describes RDF::Query::Algebra::Path version 2.918.
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>