NAME

RDF::Query::Plan::SubSelect - Executable query plan for sub-select queries.

VERSION

This document describes RDF::Query::Plan::SubSelect version 2.919.

METHODS

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

new ( $query, [ \%logging_keys ] )

Returns a new SubSelect query plan object. <$query> is a RDF:Query object representing a SELECT query.

execute ( $execution_context )

next

close

query

Returns the sub-select query object.

plan

Returns the sub-select query plan object.

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_node_name

Returns the string name of this plan node, suitable for use in serialization.

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.

graph ( $g )

AUTHOR

Gregory Todd Williams <gwilliams@cpan.org>