Gregory Todd Williams > RDF-Trine-1.008 > RDF::Trine::Pattern

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Module Version: 1.008   Source  

NAME ^

RDF::Trine::Pattern - Class for basic graph patterns

VERSION ^

This document describes RDF::Trine::Pattern version 1.008

METHODS ^

new ( @triples )

Returns a new BasicGraphPattern structure.

construct_args

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

triples

Returns a list of triples belonging to this BGP.

type
sse

Returns the SSE string for 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 pattern with variables named in %bound replaced by their corresponding bound values.

subsumes ( $statement )

Returns true if the pattern will subsume the $statement when matched against a triple store.

sort_for_join_variables

Returns a new pattern object with the subpatterns of the referrant sorted so that they may be joined in order while avoiding cartesian products (if possible).

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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