[LUCENE-5404] Add support to get number of entries a Suggester Lookup was built with and minor refactorings

• Type: Improvement
• Status: Reopened
• Priority: Major
• Resolution: Fixed
• Fix Version/s: 4.7, 6.0
• Component/s: core/search
• Lucene Fields: New
• Assignee: Areek Zillur
• Reporter: Areek Zillur
• Created: 18/Jan/14 01:01
• Updated: 5 days ago 16:13
• Resolved: 09/Feb/14 03:54

Description

It would be nice to be able to tell the number of entries a suggester lookup was built with. This would let components using lookups to keep some stats regarding how many entries were used to build a lookup.
Additionally, Dictionary could use InputIterator rather than the BytesRefIteratator, as most of the implmentations now use it.