[Removed invalid group comp.lang.java.api - moderator]

Hi,
 
  BeanIndex is an embeded Java DB with inverted indexing and
searching capabilities for Java Beans. It is released under LGPL.
  http://beanindex.sourceforge.net
  BeanIndex is ideal for websites with large number of product item
listings (tested with half a million items) and the product items have
few searchable fields.
Sites selling music files,stock photos and book would benefit the most
as they have few fields that can be searchable.

BeanIndex is a combination of Berkley DB JE and Apache Lucene index.

BeanIndex is Multi threaded. It is configurable to be single / multi
threaded.
BeanIndex uses LRU cache for efficient memory usage.
BeanIndex can have multiple indeces against one Dictionary file.
Download and try! http://beanindex.sourceforge.net

Regards
Sakthi.