showuon commented on a change in pull request #11120:
URL: https://github.com/apache/kafka/pull/11120#discussion_r677209624
##########
File path:
streams/src/main/java/org/apache/kafka/streams/state/internals/RocksDBRangeIterator.java
##########
@@ -63,6 +65,9 @@
final KeyValue<Bytes, byte[]> next = super.makeNext();
if (next == null) {
return allDone();
+ } else if (rawLastKey == null) {
+ return next;
Review comment:
We changed the meaning of `rawLastKey`, need to add some comment for
`rawLastKey == null` case.
##########
File path:
streams/src/main/java/org/apache/kafka/streams/state/internals/RocksDBRangeIterator.java
##########
@@ -44,17 +44,19 @@
this.forward = forward;
this.toInclusive = toInclusive;
if (forward) {
- iter.seek(from.get());
- rawLastKey = to.get();
- if (rawLastKey == null) {
- throw new NullPointerException("RocksDBRangeIterator:
RawLastKey is null for key " + to);
+ if (from == null) {
+ iter.seekToFirst();
+ } else {
+ iter.seek(from.get());
}
+ rawLastKey = to == null ? null : to.get();
Review comment:
Should we still need to have `rawLastKey` null check for the `to.get()`
case?
Same comments to the other similar places.
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