vsop-479 commented on code in PR #12846:
URL: https://github.com/apache/lucene/pull/12846#discussion_r1448225023
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lucene/core/src/java/org/apache/lucene/codecs/CompetitiveImpactAccumulator.java:
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@@ -93,6 +93,20 @@ public void addAll(CompetitiveImpactAccumulator acc) {
assert assertConsistent();
}
+ /** Copy {@code acc} into this empty acc. */
+ public void copy(CompetitiveImpactAccumulator acc) {
+ assert Arrays.stream(maxFreqs).sum() == 0;
+ assert otherFreqNormPairs.isEmpty();
Review Comment:
> why should the object currently be empty?
I think the caller should ensure current acc is empty when calling
``copy()``. If current acc is not empty, the caller should call
``CompetitiveImpactAccumulator.addAll()`` to merge them.
But you are right, it is the caller's responsibility to decide to call which
low level implementation. I will fix it!
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