NAME

RDF::Query::Plan::Join - Join query plan base class.

VERSION

This document describes RDF::Query::Plan::Join version 2.918.

Beyond the methods documented below, this class inherits methods from the RDF::Query::Plan class.

"new ( $lhs, $rhs, $optional )"
"lhs": Returns the left-hand-side plan to the join.
"rhs": Returns the right-hand-side plan to the join.
"optional"
"bf ()": Returns a string representing the state of the nodes of the triple (bound or free).
"join_classes": Returns the class names of all available join algorithms.
"distinct": Returns true if the pattern is guaranteed to return distinct results.
"ordered": Returns true if the pattern is guaranteed to return ordered results.
"plan_prototype": Returns a list of scalar identifiers for the type of the content (children) nodes of this plan node. See RDF::Query::Plan for a list of the allowable identifiers.
"plan_node_data": Returns the data for this plan node that corresponds to the values described by the signature returned by "plan_prototype".

 Gregory Todd Williams <gwilliams@cpan.org>