[LUCENE-3622] separate IndexDocValues interface from implementation

• Type: Task
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Fix Version/s: 4.0-ALPHA
• Lucene Fields: New
• Assignee: Unassigned
• Reporter: Robert Muir
• Created: 06/Dec/11 23:31
• Updated: 28/Aug/22 13:03
• Resolved: 19/Jan/12 17:18

Description

Currently the o.a.l.index.values contains both the abstract apis and Lucene40's current implementation.

I think we should move the implementation underneath Lucene40Codec, leaving only the abstract apis.

For example, simpletext might have a different implementation, and we might make a int8 implementation
underneath preflexcodec to support norms.