NAME

RDF::Query::Algebra::NamedGraph - Algebra class for NamedGraph patterns

VERSION

This document describes RDF::Query::Algebra::NamedGraph version 2.200, released 6 August 2009.

new ( $graph, $pattern ): Returns a new NamedGraph structure.
construct_args: Returns a list of arguments that, passed to this class' constructor, will produce a clone of this algebra pattern.
graph: Returns the graph node of the named graph expression.
pattern: Returns the graph pattern of the named graph expression.
sse: Returns the SSE string for this alegbra expression.
as_sparql: Returns the SPARQL string for this alegbra expression.
type: Returns the type of this algebra expression.
referenced_variables: Returns a list of the variable names used in this algebra expression.
definite_variables: Returns a list of the variable names that will be bound after evaluating this algebra expression.
qualify_uris ( \%namespaces, $base ): Returns a new algebra pattern where all referenced Resource nodes representing QNames (ns:local) are qualified using the supplied %namespaces.
fixup ( $query, $bridge, $base, \%namespaces ): Returns a new pattern that is ready for execution using the given bridge. This method replaces generic node objects with bridge-native objects.

 Gregory Todd Williams <gwilliams@cpan.org>