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This is the ActiveRDF adapter to the Jena RDF library.
Features:
* supports memory, file and database stores; database
stores can be configured both with datasources and raw connection
parameters. Jena currently supports Oracle, MySQL, HSQLDB,
PostgreSQL, MS SQL, and Derby.
* supports reasoners, including Pellet and the built-in Jena reasoners
* supports Lucene query support in ARQ
(since LARQ doesn't allow you to add statements
and reindex only those statements, whenever we've add a statement to a
triple store, we must rebuild the index at query time)
Requirements:
* JRuby is required to natively execute Jena
* the application can only use pure ruby gems
License:
included LGPL license (version 2 or later).
------------
Installing and running Activerdf with Jena:
=============================
Download the newest JRuby binary distribution from http://jruby.codehaus.org/
Unpack it somewhere, e.g. /usr/local/jruby
Then set your environement:
export JRUBY_HOME=/usr/local/jruby
export JAVA_HOM=/path/to/java/home
export PATH=$JRUBY_HOME/bin:$PATH
check if you now have the correct jruby commands in your path:
which jruby -> /usr/local/jruby/bin/jruby
which gem -> /usr/local/jruby/bin/gem
Now you can install rails and activerdf:
gem install rails --include-dependencies --no-rdoc --no-ri
gem install activerdf --include-dependencies
gem install activerdf_jena --include-dependencies
Create an instance of the jena adapter with simple file based persistence, and load some data into it:
this_dir = File.dirname(File.expand_path(__FILE__))
adapter = ConnectionPool.add_data_source(:type => :jena,
:model => "superfunky",
:file => this_dir + "/jena_persistence")
adapter.load("file://" + this_dir + "/test_data.rdf", :format => :rdfxml, :into => :default_model )
For more information please see the RDoc, the adapter source code and the unit tests. Go to /path/to/jruby/lib/ruby/gems/1.8/gems/activerdf_jena-0.1/test/ for that.
For more information see
http://wiki.activerdf.org/GettingStartedGuide
Version data entries
9 entries across 9 versions & 1 rubygems