NAME¶

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

VERSION¶

This document describes RDF::Trine::Pattern version 1.000

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.