May 26, 2018
Object oriented Perl modules for handling tasks related to RDF
RDFCore is a pure perl implementation of RDF storage, parser, serializer and query.
The storage functionality is basic - store, delete, query statements, where query means ask about existence or count or retrieve statements conforming given mask of subject, predicate, object. Three storages are available - in memory, file DB_File and DBMS PostgreSQL.
The parser supports full RDF/XML syntax including aboutEach attribute though it became obsolete.
The serializer attempts to preserve anonymous nodes and to compact xml a bit grouping statements with common subject.
The query language is rather focused on resources than on statements.