Lucene 1.9 released

Filed under: — By Aviran Mordo @ 7:09 pm

Lucene 1.9, the open source search engine, has been released with a lot of new features, bug fixes and optimizations. 1.9 will be the last 1.x release. It is both back-compatible with 1.4.3 and forward-compatible with the upcoming 2.0 release.

Here are some highlights from the change log:

  • Added support for stored compressed fields
  • Added support for binary stored fields
  • Add ParallelReader, an IndexReader that combines separate indexes over different fields into a single virtual index
  • Added class org.apache.lucene.index.IndexModifier which combines IndexWriter and IndexReader, so you can add and delete documents without worrying about synchronisation/locking issues.
  • Added regular expression queries, RegexQuery and SpanRegexQuery.

Lucene is used in various web sites, some of the most known are Technorati.com and indeed.com

Source: TheServerside


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