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rdf::query::algebra(3pm) [debian man page]

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)

Check Out this Related Man Page

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

NAME

       RDF::Query::Algebra::Extend - Algebra class for extending the variable projection

VERSION

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

METHODS

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

       "new ( $pattern, @vars_and_exprs )"
	   Returns a new Extend structure.

       "construct_args"
	   Returns a list of arguments that, passed to this class' constructor, will produce a clone of this algebra pattern.

       "pattern"
	   Returns the pattern to be sorted.

       "vars"
	   Returns the vars to be extended.

       "sse"
	   Returns the SSE string for this algebra expression.

       "as_sparql"
	   Returns the SPARQL string for this algebra expression.

       "as_hash"
	   Returns the query as a nested set of plain data structures (no objects).

       "type"
	   Returns the type of this algebra expression.

       "referenced_variables"
	   Returns a list of the variable names used in this algebra expression.

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

       "definite_variables"
	   Returns a list of the variable names that will be bound after evaluating this algebra expression.

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

AUTHOR

	Gregory Todd Williams <gwilliams@cpan.org>

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