debian man page for rdf::query::algebra

RDF::Query::Algebra(3pm)				User Contributed Perl Documentation				  RDF::Query::Algebra(3pm)

NAME
       RDF::Query::Algebra - Base class for Algebra expressions

VERSION
       This document describes RDF::Query::Algebra version 2.908.

METHODS
       "potentially_bound"
	   Returns a list of the variable names used in this algebra expression that will bind values during execution.

       "referenced_blanks"
	   Returns a list of the blank node names used in this algebra expression.

       "referenced_functions"
	   Returns a list of the Function URIs used in this algebra expression.

       "check_duplicate_blanks"
	   Returns true if blank nodes respect the SPARQL rule of no blank-label re-use across BGPs, otherwise throws a
	   RDF::Query::Error::QueryPatternError exception.

       "qualify_uris ( \%namespaces, $base_uri )"
	   Returns a new algebra pattern where all referenced Resource nodes representing QNames (ns:local) are qualified using the supplied
	   %namespaces.

       "bind_variables ( \%bound )"
	   Returns a new algebra pattern with variables named in %bound replaced by their corresponding bound values.

       "is_solution_modifier"
	   Returns true if this node is a solution modifier.

       "subpatterns_of_type ( $type [, $block] )"
	   Returns a list of Algebra patterns matching $type (tested with "isa").  If $block is given, then matching stops descending a subtree if
	   the current node is of type $block, continuing matching on other subtrees.  This list includes the current algebra object if it matches
	   $type, and is generated in infix order.

       "from_sse ( $sse, \%context )"
	   Given an SSE serialization, returns the corresponding algebra expression.

FUNCTIONS
       "triple ( $subj, $pred, $obj )"
	   Returns a RDF::Query::Algebra::Triple object with the supplied node objects.

       "bgp ( @triples )"
	   Returns a RDF::Query::Algebra::BasicGraphPattern object with the supplied triples.

       "ggp ( @patterns )"
	   Returns a RDF::Query::Algebra::GroupGraphPattern object with the supplied algebra patterns.

AUTHOR
	Gregory Todd Williams <gwilliams@cpan.org>

perl v5.14.2							    2012-01-31						  RDF::Query::Algebra(3pm)