RDF::Query::Algebra::Extend(3)

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

VERSION
This document describes RDF::Query::Algebra::Extend version 2.919.

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>