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Jena

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Jena - A Java API for RDF
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This page is now obsolete.  My work has been promoted from a personal exploration to a formal HPLabs project on the semantic web.  New versions of Jena will be produced by that team collectively, not by me alone, and so it was appropriate to move the Jena website from my own personal web pages to an HP project site at http://www.hpl.hp.com/semweb

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corner What's new - 4th July 2001 corner
  • Jena 1-1-0
    • an efficient model compare which does intelligent matching of anonymous nodes
    • a PrettyWriter for RDF
    • numerous bug fixes in RDFFilter
    • N-Triple reader and writer
    • rdfcompare a new application for comparing RDF models
    • rdfcopy a new application for translating RDF from one language to another
    • Generalised interface for readers and writers
    • New interface Jena with global constant definitions e.g. the Jena path, CVS version string and CVS date string.
    • Bug fix to Seq's to allow an 'insert' after the last item in the list
  • Jena 1-0-7
    • Fixed bug in parsing daml:collection to add type property of daml:List to the anonymous nodes
    • Fixed bug in RDFException which was giving some incorrect error messages
  • Jena 1-0-6
    • Added support for tracking whether literals are well formed XML.  This enables round tripping of parseType Literals correctly.
  • Fixed bug in SelectorImpl when nulls of type String or Object were passed as the object argument to the constructor
  • Added support for parsing daml:collection to RDFFilter.
  • Integretated RDFFilter into the source tree.
  • Fixed but in generating URI's from ID attributes
  • Modified regression and build scripts to use path names that work on both Unix and Windows platforms.
  • Added definition of 'equals' method to Literal.
  • Minor JavaDoc corrections in SelectorImpl
  • Fixed handling of empty URI's in RDFLoader
  • Fixed bug in ModelMem.isReified()
  • Updated RSS 1.0 sample application to reflect updated RSS specification.
  • Renamed site summary applications
  • Fixed bug in Statement.getSeq, getAlt, getBag.
  • Fixed a bug in RDF Filter
  • Added renderToHTMLx to HTML translation example.
  • Added site summary format to HTML translation example.
  • Added Jos De Roo's reification example.
  • Fixed bugs in RDFWriter when handling reified statements.
  • Added listObjects() and listObjectsWithProperty(Resource subject, Property predicate) to model.
  • Made some minor fixes to RDFFilter. 
  • Replaced the plethora of list and query calls with an enhanced selector class.
  • Added support for 'lang' attributes.
  • Added support for XML embedded in Literal's.
  • Added parser and writer methods. Integrated David Megginson's RDF Filter for RDF parsing. 
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