[LUCENE-9631] Properly override slice() on subclasses of OffsetRange

• Type: Improvement
• Status: Closed
• Priority: Trivial
• Resolution: Fixed
• Fix Version/s: 9.0
• Lucene Fields: New
• Assignee: Dawid Weiss
• Reporter: Dawid Weiss
• Created: 03/Dec/20 09:53
• Updated: 28/Aug/22 16:11
• Resolved: 03/Dec/20 09:56

Description

Subclasses of OffsetRange should return a proper covariant on slice(); this ensures the sliced copy is still an instance of the same class.

Passage should throw a RuntimeException from that method since it's not a sub-divisible (passages contain sub-ranges).