Lucene should be able to have a entirely memory resident term dictionary
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                 Key: LUCENE-3069
                 URL: https://issues.apache.org/jira/browse/LUCENE-3069
             Project: Lucene - Java
          Issue Type: Improvement
          Components: Index, Search
    Affects Versions: 4.0
            Reporter: Simon Willnauer
            Assignee: Simon Willnauer
             Fix For: 4.0


FST based TermDictionary has been a great improvement yet it still uses a delta 
codec file for scanning to terms. Some environments have enough memory 
available to keep the entire FST based term dict in memory. We should add a 
TermDictionary implementation that encodes all needed information for each term 
into the FST (custom fst.Output) and builds a FST from the entire term not just 
the delta.

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