javanna commented on code in PR #13542:
URL: https://github.com/apache/lucene/pull/13542#discussion_r1732759669
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lucene/core/src/java/org/apache/lucene/search/IndexSearcher.java:
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@@ -890,11 +945,70 @@ public static class LeafSlice {
*
* @lucene.experimental
*/
- public final LeafReaderContext[] leaves;
+ public final LeafReaderContextPartition[] leaves;
- public LeafSlice(List<LeafReaderContext> leavesList) {
- Collections.sort(leavesList, Comparator.comparingInt(l -> l.docBase));
- this.leaves = leavesList.toArray(new LeafReaderContext[0]);
+ public LeafSlice(List<LeafReaderContextPartition>
leafReaderContextPartitions) {
+ leafReaderContextPartitions.sort(Comparator.comparingInt(l ->
l.ctx.docBase));
+ // TODO should we sort by minDocId too?
+ this.leaves = leafReaderContextPartitions.toArray(new
LeafReaderContextPartition[0]);
+ }
+
+ /**
+ * Returns the total number of docs that a slice targets, by summing the
number of docs that
+ * each of its leaf context partitions targets.
+ */
+ public int getNumDocs() {
+ return Arrays.stream(leaves)
Review Comment:
this is a test only method. I don't think we need to focus on performance
that much. I did move it to computing it once in the constructor (have yet to
push but will do so later today)
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