swamirishi commented on code in PR #8203: URL: https://github.com/apache/ozone/pull/8203#discussion_r2047908615
########## hadoop-hdds/framework/src/main/java/org/apache/hadoop/hdds/utils/db/RDBStoreAbstractIterator.java: ########## @@ -78,32 +82,44 @@ final RAW getPrefix() { @Override public final void forEachRemaining( - Consumer<? super Table.KeyValue<RAW, RAW>> action) { + Consumer<? super UncheckedAutoCloseableSupplier<RawKeyValue<RAW>>> action) { while (hasNext()) { - action.accept(next()); + UncheckedAutoCloseableSupplier<RawKeyValue<RAW>> entry = next(); + action.accept(entry); } } private void setCurrentEntry() { - if (rocksDBIterator.get().isValid()) { + if (currentEntry != null) { + currentEntry.release(); + } + + boolean isValid = !closed && rocksDBIterator.get().isValid(); + if (isValid) { currentEntry = getKeyValue(); + currentEntry.retain(); } else { currentEntry = null; } + setHasNext(isValid, currentEntry); + } + + public void setHasNext(boolean isValid, ReferenceCountedObject<RawKeyValue<RAW>> entry) { + this.hasNext = isValid && (prefix == null || startsWithPrefix(entry.get().getKey())); } @Override public final boolean hasNext() { - return rocksDBIterator.get().isValid() && - (prefix == null || startsWithPrefix(key())); + return hasNext; } @Override - public final Table.KeyValue<RAW, RAW> next() { - setCurrentEntry(); - if (currentEntry != null) { + public final UncheckedAutoCloseableSupplier<RawKeyValue<RAW>> next() { Review Comment: I am planning to implement the [java.util.SplitIterator](https://docs.oracle.com/javase/8/docs/api/java/util/Spliterator.html) for multi threaded api -- This is an automated message from the Apache Git Service. To respond to the message, please log on to GitHub and use the URL above to go to the specific comment. To unsubscribe, e-mail: issues-unsubscr...@ozone.apache.org For queries about this service, please contact Infrastructure at: us...@infra.apache.org --------------------------------------------------------------------- To unsubscribe, e-mail: issues-unsubscr...@ozone.apache.org For additional commands, e-mail: issues-h...@ozone.apache.org