[LUCENE-4082] Implement explain in ToParentBlockJoinQuery$BlockJoinWeight

• Type: Improvement
• Status: Closed
• Priority: Minor
• Resolution: Fixed
• Affects Version/s: 3.4, 3.5, 3.6
• Fix Version/s: 4.0-ALPHA, 6.0
• Component/s: modules/join
• Lucene Fields: New
• Assignee: Martijn van Groningen
• Reporter: Christoph Kaser
• Created: 29/May/12 08:38
• Updated: 28/Aug/22 13:17
• Resolved: 14/Jun/12 22:42

Description

At the moment, ToParentBlockJoinQuery$BlockJoinWeight.explain throws an UnsupportedOperationException. It would be useful if it could instead return the score of parent document, even if the explanation on how that score was calculated is missing.