[jira] [Created] (LUCENE-8272) Share internal DV update code between binary and numeric

["Simon Willnauer (JIRA)" <ji...@apache.org>]

Simon Willnauer created LUCENE-8272:
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             Summary: Share internal DV update code between binary and numeric
                 Key: LUCENE-8272
                 URL: https://issues.apache.org/jira/browse/LUCENE-8272
             Project: Lucene - Core
          Issue Type: Improvement
    Affects Versions: 7.4, master (8.0)
            Reporter: Simon Willnauer
             Fix For: 7.4, master (8.0)
         Attachments: LUCENE-8272.patch

Today we duplicate a fair portion of the internal logic to
    apply updates of binary and numeric doc values. This change refactors
    this non-trivial code to share the same code path and only differ in
    if we provide a binary or numeric instance. This also allows us to
    iterator over the updates only once rather than twice once for numeric
    and once for binary fields.
    
    This change also subclass DocValuesIterator from DocValuesFieldUpdates.Iterator
    which allows easier consumption down the road since it now shares most of it's
    interface with DocIdSetIterator which is the main interface for this in Lucene.



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