richardstartin commented on a change in pull request #7927:
URL: https://github.com/apache/pinot/pull/7927#discussion_r772832180
##########
File path: pinot-spi/src/main/java/org/apache/pinot/spi/stream/MessageBatch.java
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@@ -82,6 +88,13 @@ default StreamPartitionMsgOffset
getNextStreamParitionMsgOffsetAtIndex(int index
return new LongMsgOffset(getNextStreamMessageOffsetAtIndex(index));
}
+ /**
+ * @return last offset in the batch
+ */
+ default StreamPartitionMsgOffset getLastOffset() {
+ return getNextStreamParitionMsgOffsetAtIndex(getMessageCount() - 1);
Review comment:
Indeed, `getMessageCount() - 1` is not an offset, but an index into the
batch of messages - it returns the next offset of the last message.
`getNextStreamParitionMsgOffsetAtIndex` takes an _index_ and produces the next
offset from the message at that index. Does this make sense?
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