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From Doug Cutting <>
Subject Re: Study Group (WAS Re: Normalized Scoring)
Date Mon, 07 Feb 2005 17:53:45 GMT
Paul Elschot wrote:
> I learned a lot by adding some javadocs to such classes. I suppose Doug
> added the Expert markings, but I don't know their precise purpose.

The "Expert" declaration is meant to indicate that most users should not 
need to understand the feature.  Lucene's API seeks to be both simple 
and flexible, but this is not always possible.  When flexibility is 
added that is not part of the simple API, it is deemed "expert".  For 
example, we don't expect most users to need to write new Query 
implementations.  So Query methods that are only used internally in 
query processing are marked "Expert", since they only need to be 
understood by those implementing a Query.


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