RDF::Query::Algebra::Sequence(3pm)

NAME

RDF::Query::Algebra::Sequence - Algebra class for a sequence of algebra operations

VERSION

This document describes RDF::Query::Algebra::Sequence version 2.919.

METHODS

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

"new ( @patterns )"

Returns a new Sequence structure.

"construct_args"

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

"patterns"

Returns a list of patterns belonging to this sequence.

"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.

"clone"

"bind_variables ( \%bound )"

Returns a new algebra pattern with variables named in %bound replaced by their corresponding bound values.

"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.

AUTHOR

 Gregory Todd Williams <[email protected]>