rkhachatryan commented on a change in pull request #15200:
URL: https://github.com/apache/flink/pull/15200#discussion_r640972283
##########
File path:
flink-state-backends/flink-statebackend-changelog/src/main/java/org/apache/flink/state/changelog/ChangelogMapState.java
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@@ -71,22 +94,67 @@ public boolean contains(UK key) throws Exception {
@Override
public Iterable<Map.Entry<UK, UV>> entries() throws Exception {
- return delegatedState.entries();
+ Iterator<Map.Entry<UK, UV>> iterator =
delegatedState.entries().iterator();
+ final N currentNamespace = getCurrentNamespace();
+ return () ->
+ loggingIterator(
+ new Iterator<Map.Entry<UK, UV>>() {
+ @Override
+ public Map.Entry<UK, UV> next() {
+ return loggingMapEntry(
+ iterator.next(),
+ changeLogger,
+ changeWriter,
+ currentNamespace);
+ }
+
+ @Override
+ public boolean hasNext() {
+ return iterator.hasNext();
+ }
+
+ @Override
+ public void remove() {
+ iterator.remove();
+ }
Review comment:
I don't see why it's impossible. `MapState.entries` doesn't says
anything forbidding this.
The `iterator` was already obtained from `delegatedState`, so `remove()`
call should be enough.
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