[LUCENE-10139] ExternalRefSorter should return a covariant with a subtype of BytesRefIterator that is Closeable

• Type: Improvement
• Status: Closed
• Priority: Trivial
• Resolution: Fixed
• Fix Version/s: 9.0
• Lucene Fields: New
• Assignee: Dawid Weiss
• Reporter: Dawid Weiss
• Created: 30/Sep/21 14:08
• Updated: 28/Aug/22 16:27
• Resolved: 04/Oct/21 07:21

Description

This is a trivial cleanup to make ExternalRefSorter return a covariant subtype of BytesRefIterator that is Closeable. This way callers of iterator() have a way of making sure I/O resources are closed without fully exhausting the iterator (in case of exceptions happening somewhere while scanning the byte refs, for example).

Issue Links

• links to: GitHub Pull Request #340