[LUCENE-5304] SingletonSortedSetDocValues should allow for getting back the wrapped instance

• Type: Improvement
• Status: Resolved
• Priority: Minor
• Resolution: Fixed
• Fix Version/s: 4.6
• Lucene Fields: New
• Assignee: Adrien Grand
• Reporter: Adrien Grand
• Created: 24/Oct/13 08:35
• Updated: 28/Aug/22 13:55
• Resolved: 24/Oct/13 13:56

Description

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).