Robert Muir created LUCENE-4355:
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             Summary: improve AtomicReader sugar apis
                 Key: LUCENE-4355
                 URL: https://issues.apache.org/jira/browse/LUCENE-4355
             Project: Lucene - Core
          Issue Type: Task
            Reporter: Robert Muir


I thought about this after looking @ LUCENE-4353:

AtomicReader has some sugar APIs that are over top of the flex apis (Fields, 
Terms, ...). But these might be a little trappy/confusing compared to 3.x.

# I dont think we need AtomicReader.termDocsEnum(Bits, ...) and 
.termPositionsEnum(Bits, ...). I also don't think we need variants that take 
flags here. We should simplify these to be less trappy. I think we only need 
(String, BytesRef) here.
# This means you need to use the flex apis for more expert usage: but we make 
this a bit too hard since we only let you get a Terms (which you must null 
check, then call .iterator() on, then seekExact, ...). I think it could help if 
we balanced this out by adding some sugar like AtomicReader.termsEnum? 3.x had 
a method that let you get a 'positioned termsenum'.

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