curcur commented on a change in pull request #13501:
URL: https://github.com/apache/flink/pull/13501#discussion_r497225512
##########
File path:
flink-runtime/src/main/java/org/apache/flink/runtime/io/network/partition/PipelinedApproximateSubpartitionView.java
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@@ -0,0 +1,27 @@
+package org.apache.flink.runtime.io.network.partition;
+
+import static org.apache.flink.util.Preconditions.checkState;
+
+public class PipelinedApproximateSubpartitionView extends
PipelinedSubpartitionView {
+
+ PipelinedApproximateSubpartitionView(PipelinedApproximateSubpartition
parent, BufferAvailabilityListener listener) {
+ super(parent, listener);
+ }
+
+ @Override
+ public void releaseAllResources() {
+ if (isReleased.compareAndSet(false, true)) {
+ // The view doesn't hold any resources and the parent
cannot be restarted. Therefore,
+ // it's OK to notify about consumption as well.
+ checkState(parent instanceof
PipelinedApproximateSubpartition);
+ ((PipelinedApproximateSubpartition)
parent).releaseView();
Review comment:
Yeah, I was also thinking of that. The problem is that I have to change
all the common methods in the superclass that uses `parent` to
`approximateParent` => a lot of redundant code.
`releaseView()` is one of the few classes that are different from the
superclass.
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