NAME¶
RDF::Query::Algebra::Sequence - Algebra class for a sequence of algebra
operations
VERSION¶
This document describes RDF::Query::Algebra::Sequence version 2.912.
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 <gwilliams@cpan.org>
