NAME
RDF::Query::Plan::Join - Join query plan base class.
VERSION
This document describes RDF::Query::Plan::Join version 2.919.
METHODS
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
.
AUTHOR
Gregory Todd Williams <gwilliams@cpan.org>