[jira] [Created] (LUCENE-5304) SingletonSortedSetDocValues should allow for getting back the wrapped instance

["Adrien Grand (JIRA)" <ji...@apache.org>]

Adrien Grand created LUCENE-5304:
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             Summary: SingletonSortedSetDocValues should allow for getting back the wrapped instance
                 Key: LUCENE-5304
                 URL: https://issues.apache.org/jira/browse/LUCENE-5304
             Project: Lucene - Core
          Issue Type: Improvement
            Reporter: Adrien Grand
            Assignee: Adrien Grand
            Priority: Minor


This idea was mentioned by Robert on LUCENE-5300

Some codecs or FieldCache impls use SingletonSortedSetDocValues when a field which is supposed to be multi-valued is actually single-valued. By having a getter on this class to get back the wrapped SortedDocValues instance, we could add more specialization (which often already exists, eg. Solr's DocValuesFacets already have a specialized impl for SortedDocValues).




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