[LUCENE-2648] Allow PackedInts.ReaderIterator to advance more than one value

• Type: Improvement
• Status: Closed
• Priority: Minor
• Resolution: Fixed
• Affects Version/s: 4.0-ALPHA
• Fix Version/s: 4.0-ALPHA
• Component/s: core/other
• Lucene Fields: New, Patch Available
• Assignee: Simon Willnauer
• Reporter: Simon Willnauer
• Created: 16/Sep/10 17:15
• Updated: 28/Aug/22 12:32
• Resolved: 18/Sep/10 11:51

Description

The iterator-like API in LUCENE-2186 makes effective use of PackedInts.ReaderIterator but frequently skips multiple values. ReaderIterator currently requires to loop over ReaderInterator#next() to advance to a certain value. We should allow ReaderIterator to expose a #advance(ord) method to make use-cases like that more efficient.

This issue is somewhat part of my efforts to make LUCENE-2186 smaller while breaking it up in little issues for parts which can be generally useful.

Issue Links

• is depended upon by: LUCENE-2186 First cut at column-stride fields (index values storage)