NAME

RDF::Query::Algebra::TimeGraph - Algebra class for temporal patterns

VERSION

This document describes RDF::Query::Algebra::TimeGraph version 2.900_01, released 30 January 2010.

METHODS

new ( $interval, $pattern, $time_triples )

Returns a new TimeGraph structure.

construct_args

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

interval

Returns the time interval node of the temporal graph expression.

pattern

Returns the graph pattern of the temporal graph expression.

time_triples

Returns the triples describing the time interval of the temporal graph.

sse

Returns the SSE string for this alegbra expression.

as_sparql

Returns the SPARQL string for this alegbra expression.

type

Returns the type of this algebra expression.

referenced_variables

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

binding_variables

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.

AUTHOR

Gregory Todd Williams <gwilliams@cpan.org>