Apache Lucene 2.9.4 / 3.6.1 / 4.0-beta

Developer: Website: License / Price: Platforms: Databases: Language: Last Updated: Category: Apache Software Foundation | More scripts lucene.apache.org Apache License  Windows / Linux / Mac OS / BSD / Solaris N/A Java August 20th, 2012, 05:53 GMT [view history] C: \ Search Engines

It is suitable for any application that requires full-text search, especially cross-platform.

Here are some key features of "Apache Lucene":

· Scalable
· High-performance indexing
· Cross-platform support
· Small RAM requirements
· Batch indexing
· Efficient search algorithms
· Ranked searching support
· Support for different query types
· Fielded searching
· Date-range searching
· Sorting by any field
· Multiple-index searching
· Merged results
· Simultaneous update and searching

What's New in This Release: [ read full changelog ]

· The index formats for terms, postings lists, stored fields, term
· vectors, etc. are pluggable via the Codec api. You can select from the provided implementations or customize the index format with your own Codec to meet your needs.
· Substantially faster performance when using a Filter during searching.
· File-system based directories can rate-limit the IO (MB/sec) of merge threads, to reduce IO contention between merging and searching threads.
· FuzzyQuery is 100-200 times faster than in past releases.
· A new spell checker, DirectSpellChecker, finds possible corrections
· directly against the main search index without requiring a separate index.

Via: Apache Lucene 2.9.4 / 3.6.1 / 4.0-beta