rmuir commented on code in PR #13359:
URL: https://github.com/apache/lucene/pull/13359#discussion_r1604776531
##########
lucene/core/src/java/org/apache/lucene/index/TermsEnum.java:
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@@ -61,6 +62,15 @@ public enum SeekStatus {
*/
public abstract boolean seekExact(BytesRef text) throws IOException;
+ /**
+ * Prepare a future call to {@link #seekExact}. This typically calls {@link
IndexInput#prefetch}
+ * on the right range of bytes under the hood so that the next call to
{@link #seekExact} is
+ * faster. This can be used to parallelize I/O across multiple terms by
calling {@link
+ * #prepareSeekExact} on multiple terms enums before calling {@link
#seekExact(BytesRef)} on the
+ * same {@link TermsEnum}s.
+ */
+ public void prepareSeekExact(BytesRef text) throws IOException {}
Review Comment:
Can we look into subclasses such as `FilterLeafReader.FilterTermsEnum` to
make sure this new method behaves correctly?
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