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Describe some recent changes. 

git-svn-id: https://svn.apache.org/repos/asf/lucene/java/trunk@150543 13f79535-47bb-0310-9956-ffa450edef68
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Doug Cutting 2004-09-29 16:54:44 +00:00
parent 260dcbe4ef
commit e2c1b9b313
1 changed files with 17 additions and 1 deletions
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@ -66,7 +66,23 @@ $Id$
missing, others duplicated) if the sort keys were not unique and there missing, others duplicated) if the sort keys were not unique and there
were more than 100 matches. (Daniel Naber) 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 1.4.1