Eclipse RDF4J (formerly OpenRDF Sesame) is an open-source framework for querying and analyzing RDF data. It was created by the Dutch software company Aduna as part of "On-To-Knowledge", a semantic web project that ran from 1999 to 2002. It contains implementations of an in-memory triplestore and an on-disk triplestore, along with two separate Servlet packages that can be used to manage and provide access to these triplestores, on a permanent server. The RDF4J Rio (RDF Input/Output) package contains a simple API for Java-based RDF parsers and writers. Parsers and writers for popular RDF serialisations are distributed along with RDF4J, and users can easily extend the list by putting their parsers and writers on the Java classpath when running their application.
Screenshot of the RDF4J Workbench in a web browser tab.
3.0.0 / August 23, 2019
|Platform||Java Virtual Machine|
|License||Eclipse Distribution License (EDL), v1.0|
RDF4J's RDF database API differs from comparable solutions in that it offers a stackable interface through which functionality can be added, and the storage engine (SAIL) is abstracted from the query interface. Many other triplestores can be used through the RDF4J API, including Ontotext GraphDB (built as a SAIL), Mulgara, and AllegroGraph. Through the stackable interface, functionality can be added to all of these stores. It can, for example, be used to add indexing and query capabilities to all compatible stores:
In May 2016, Sesame officially forked into an Eclipse project called RDF4J, in recognition of Aduna no longer being involved in its development. This official fork brings the core developers with it and is supported by several commercial companies.
- "System documentation for RDF4J. The SAIL API"
- "LuceneSail" Archived 2011-08-14 at the Wayback Machine
- ""uSeekM"". dev.opensahara.com. Archived from the original on 2014-04-15. Cite uses deprecated parameter
- Beaton, Wayne (4 June 2015). "Eclipse RDF4J". projects.eclipse.org.
- "RDF4J | projects.eclipse.org".