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Manual Reference Pages  -  RDF::TRINE::STATEMENT (3)

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NAME

RDF::Trine::Statement - Class for triples and triple patterns

CONTENTS

VERSION

This document describes RDF::Trine::Statement version 1.014

METHODS

new ( $s, $p, $o ) Returns a new Triple structure.
construct_args Returns a list of arguments that, passed to this class’ constructor, will produce a clone of this algebra pattern.
nodes Returns the subject, predicate and object of the triple pattern.
node_names Returns the method names for accessing the nodes of this statement.
subject Returns the subject node of the triple pattern.
predicate Returns the predicate node of the triple pattern.
object Returns the object node of the triple pattern.
as_string Returns the statement in a string form.
has_blanks Returns true if any of the nodes in this statement are blank nodes.
sse Returns the SSE string for this algebra expression.
from_sse ( $string, $context ) Parses the supplied SSE-encoded string and returns a RDF::Trine::Statement object.
type Returns the type of this algebra expression.
referenced_variables Returns a list of the variable names used in this algebra expression.
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.
subsumes ( $statement ) Returns true if this statement will subsume the $statement when matched against a triple store.
from_redland ( $statement ) Given a RDF::Redland::Statement object, returns a perl-native RDF::Trine::Statement object.
rdf_compatible Returns true if and only if the statement can be expressed in RDF. That is, the subject of the statement must be a resource or blank node; the predicate must be a resource; and the object must be a resource, blank node or literal.

RDF::Trine::Statement does allow statements to be created which cannot be expressed in RDF - for instance, statements including variables.

BUGS

Please report any bugs or feature requests to through the GitHub web interface at <https://github.com/kasei/perlrdf/issues>.

AUTHOR

Gregory Todd Williams <gwilliams@cpan.org>

COPYRIGHT

Copyright (c) 2006-2012 Gregory Todd Williams. This program is free software; you can redistribute it and/or modify it under the same terms as Perl itself.
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perl v5.20.3 RDF::TRINE::STATEMENT (3) 2015-05-17

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