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AtteanX::Store::LMDB(3pm) User Contributed Perl Documentation AtteanX::Store::LMDB(3pm)


AtteanX::Store::LMDB - LMDB-based RDF store


This document describes AtteanX::Store::LMDB version 0.001


 use AtteanX::Store::LMDB;


AtteanX::Store::LMDB provides a persistent quad-store based on LMDB.


Beyond the methods documented below, this class inherits methods from the Attean::API::QuadStore class.

"new ()"
Returns a new LMDB-backed store object.
Returns the number of quads in the store.
"get_quads ( $subject, $predicate, $object, $graph )"
Returns a stream object of all statements matching the specified subject, predicate, object, and graph. Any of the arguments may be undef to match any value.
Returns an iterator over the Attean::API::Term objects comprising the set of graphs of the stored quads.
"add_quad ( $quad )"
Adds the specified $quad to the underlying model.
"remove_quad ( $statement )"
Removes the specified $statement from the underlying model.
"create_graph( $graph )"
This is a no-op function for the memory quad-store.
"drop_graph( $graph )"
Removes all quads with the given $graph.
"clear_graph( $graph )"
Removes all quads with the given $graph.


Please report any bugs or feature requests to through the GitHub web interface at <>.


Gregory Todd Williams "<>"


Diomede <> is a Swift LMDB-based quadstore that shares the same file format as this module.


Copyright (c) 2020 Gregory Todd Williams. This program is free software; you can redistribute it and/or modify it under the same terms as Perl itself.

2020-12-22 perl v5.32.0