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Date: 29 Sep 2004 16:54:44 -0000
Message-ID: <20040929165444.76419.qmail@minotaur.apache.org>
From: cutting@apache.org
To: jakarta-lucene-cvs@apache.org
Subject: cvs commit: jakarta-lucene CHANGES.txt

cutting     2004/09/29 09:54:44

  Modified:    .        CHANGES.txt
  Log:
  Describe some recent changes.
  
  Revision  Changes    Path
  1.113     +18 -2     jakarta-lucene/CHANGES.txt
  
  Index: CHANGES.txt
  ===================================================================
  RCS file: /home/cvs/jakarta-lucene/CHANGES.txt,v
  retrieving revision 1.112
  retrieving revision 1.113
  diff -u -r1.112 -r1.113
  --- CHANGES.txt	28 Sep 2004 18:15:52 -0000	1.112
  +++ CHANGES.txt	29 Sep 2004 16:54:44 -0000	1.113
  @@ -66,7 +66,23 @@
       missing, others duplicated) if the sort keys were not unique and there
       were more than 100 matches. (Daniel Naber)
   
  -14. Add native Directory implementation that works under GCJ.  (cutting)
  +14. Add native Directory and TermDocs implementations that work under
  +    GCJ.  These require GCC 3.4.0 or later and have only been tested
  +    on Linux.  Use 'ant gcj' to build demo applications. (cutting)
  +
  +15. Add MMapDirectory, which uses nio to mmap input files.  This is
  +    still somewhat slower than FSDirectory.  However it uses less
  +    memory per query term, since a new buffer is not allocated per
  +    term, which may help applications which use, e.g., wildcard
  +    queries.  It also should, in theory, someday be faster.  A
  +    downside is, due to limitations of the nio APIs, this does not
  +    work with indexes containing files larger than 2^31 bytes. (cutting)
  +
  +16. Optimize the performance of certain uses of BooleanScorer,
  +    TermScorer and IndexSearcher.  In particular, a BooleanQuery
  +    composed of TermQuery, with not all terms required, that returns a
  +    TopDocs (e.g., through a Hits with no Sort specified) runs much
  +    faster.  (cutting)
   
   
   1.4.1
  
  
  

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