NAME

RDF::Query::Plan::Constant - Executable query plan for Constants.

VERSION

This document describes RDF::Query::Plan::Constant version 2.908.

METHODS

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

new ( @variable_bindings )

execute ( $execution_context )

bindings

Returns a list of the variable bindings for this constant result set.

is_unit

Returns true if this constant result set is comprised of a single, empty variable binding.

next

close

size

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.

AUTHOR

 Gregory Todd Williams <gwilliams@cpan.org>