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Posted to issues@flink.apache.org by GitBox <gi...@apache.org> on 2018/10/24 06:18:01 UTC
[GitHub] zhijiangW commented on a change in pull request #6911: [FLINK-10656] Refactor org.apache.flink.runtime.io.network.api.reader…
zhijiangW commented on a change in pull request #6911: [FLINK-10656] Refactor org.apache.flink.runtime.io.network.api.reader…
URL: https://github.com/apache/flink/pull/6911#discussion_r227654121
##########
File path: flink-runtime/src/main/java/org/apache/flink/runtime/io/network/api/reader/IterationReader.java
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@@ -21,34 +21,21 @@
import org.apache.flink.runtime.event.TaskEvent;
import org.apache.flink.runtime.util.event.EventListener;
-import java.io.IOException;
-
/**
- * The basic API for every reader.
+ * Reader for iteration.
*/
-public interface ReaderBase {
-
- /**
- * Returns whether the reader has consumed the input.
- */
- boolean isFinished();
-
- // ------------------------------------------------------------------------
- // Task events
- // ------------------------------------------------------------------------
-
- void sendTaskEvent(TaskEvent event) throws IOException;
-
- void registerTaskEventListener(EventListener<TaskEvent> listener, Class<? extends TaskEvent> eventType);
-
- // ------------------------------------------------------------------------
- // Iterations
- // ------------------------------------------------------------------------
+public interface IterationReader {
void setIterativeReader();
void startNextSuperstep();
boolean hasReachedEndOfSuperstep();
+ /**
+ * Returns whether the reader has consumed the input.
+ */
+ boolean isFinished();
Review comment:
I think `isFinished` method is not strong correlation of iteration, and it should be a very common method suitable for all readers.
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