https://github.com/abargnesi/rdf-jena

RDF.rb storage implementation for Apache Jena
https://github.com/abargnesi/rdf-jena

Last synced: 7 days ago
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RDF.rb storage implementation for Apache Jena

• Host: GitHub
• URL: https://github.com/abargnesi/rdf-jena
• Owner: abargnesi
• License: apache-2.0
• Created: 2015-11-18T02:58:47.000Z (about 9 years ago)
• Default Branch: master
• Last Pushed: 2016-06-08T08:38:41.000Z (over 8 years ago)
• Last Synced: 2024-10-19T12:58:36.456Z (about 1 month ago)
• Language: Java
• Size: 83.5 MB
• Stars: 1
• Watchers: 2
• Forks: 1
• Open Issues: 0
• Metadata Files:
  • Readme: README.md
  • Changelog: CHANGELOG.md
  • License: LICENSE

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README

        
# rdf-jena

RDF Storage backed by Apache Jena and running on JRuby.

Works on JRuby 1.7 and 9k series.

## Install

`gem install rdf-jena`

## Use

```ruby

require 'rdf/jena'

# Create TDB directory 'data'.

r = RDF::Jena::Repository.new('data')

# Insert a statement into the default graph (Jena's default model for the TDB dataset).

r << RDF::Statement.new(

  RDF::URI('https://github.com/abargnesi'),

  RDF::URI('http://purl.org/dc/terms/created'),

  RDF::URI('https://github.com/abargnesi/rdf-jena')

)

# Work with graphs.

  # Create repository data source for graph.

  graph_repository = RDF::Repository.new(:graph_name=>'https://github.com')

  graph_repository << RDF::Statement.new(

    RDF::URI('https://github.com/abargnesi/rdf-jena'),

    RDF::URI('http://purl.org/dc/terms/requires'),

    RDF::URI('https://github.com/ruby-rdf/rdf')

  )

  # Create named graph from repository.

  graph = RDF::Graph.new('https://github.com', :data => graph_repository)

  # Insert as a named graph into repository (Added as a named model to the TDB dataset).

  r.insert_graph(graph)

  # You can also:

  

    # replace a graph

    r.replace_graph(graph)

    # delete a graph

    r.delete_graph(graph)

```