Sesame 2.0 Adapter for RDF.rb

This is an RDF.rb plugin that adds support for Sesame 2.0-compatible RDF repositories accessed using Sesame's HTTP API.

• http://github.com/bendiken/rdf-sesame

Documentation

• {RDF::Sesame}
  • {RDF::Sesame::Connection}
  • {RDF::Sesame::Server}
  • {RDF::Sesame::Repository}

This adapter implements the RDF::Repository interface; refer to the relevant RDF.rb API documentation for further usage instructions.

Limitations

• This adapter does not contain any SPARQL support. To use a Sesame endpoint with SPARQL, see the SPARQL::Client gem.
• This adapter is not yet optimized for RDF.rb 0.2.x's bulk-operation APIs, meaning that statement insertions and deletions are currently performed one by one; this may affect the performance of loading large datasets into Sesame. This will be addressed in an upcoming version.
• This adapter is not yet optimized for RDF.rb 0.2.x's enhanced query APIs; this may adversely affect triple pattern query performance. This will be addressed in an upcoming version.

Caveats

• Sesame rewrites blank node identifiers on inserted statements. For example, if you supply a _:foobar identifier, it becomes something like _:node156oo6equx12769 as soon as you insert it into a Sesame repository. This means that you can't construct and insert a statement containing a blank node term and then expect to successfully be able check for its existence using the Repository#has_statement? method. This is also the reason that 7 specs for RDF::Repository currently fail with this adapter.

Dependencies

• RDF.rb (>= 0.3.0)
• JSON (>= 1.4.2)

Installation

The recommended installation method is via RubyGems. To install the latest official release of the RDF::Sesame gem, do:

% [sudo] gem install rdf-sesame

Download

To get a local working copy of the development repository, do:

% git clone git://github.com/bendiken/rdf-sesame.git

Alternatively, download the latest development version as a tarball as follows:

% wget http://github.com/bendiken/rdf-sesame/tarball/master

Mailing List

• http://lists.w3.org/Archives/Public/public-rdf-ruby/

Author

• Arto Bendiken - http://ar.to/

Contributors

Refer to the accompanying {file:CREDITS} file.

License

This is free and unencumbered public domain software. For more information, see http://unlicense.org/ or the accompanying {file:UNLICENSE} file.