Github user zentol commented on a diff in the pull request:
https://github.com/apache/flink/pull/2707#discussion_r86107589
--- Diff:
flink-streaming-java/src/main/java/org/apache/flink/streaming/runtime/operators/GenericWriteAheadSink.java
---
@@ -27,27 +26,30 @@
import org.apache.flink.runtime.state.CheckpointStreamFactory;
import org.apache.flink.runtime.state.StreamStateHandle;
import
org.apache.flink.runtime.util.ReusingMutableToRegularIteratorWrapper;
-import org.apache.flink.streaming.api.operators.StreamCheckpointedOperator;
import org.apache.flink.streaming.api.operators.AbstractStreamOperator;
import org.apache.flink.streaming.api.operators.OneInputStreamOperator;
+import org.apache.flink.streaming.api.operators.StreamCheckpointedOperator;
import org.apache.flink.streaming.runtime.streamrecord.StreamRecord;
import org.apache.flink.util.InstantiationUtil;
+import org.apache.flink.util.Preconditions;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import java.io.IOException;
import java.io.Serializable;
import java.util.HashSet;
+import java.util.Map;
import java.util.Set;
import java.util.TreeMap;
import java.util.UUID;
/**
- * Generic Sink that emits its input elements into an arbitrary backend.
This sink is integrated with the checkpointing
- * mechanism and can provide exactly-once guarantees; depending on the
storage backend and sink/committer implementation.
+ * Generic Sink that emits its input elements into an arbitrary backend.
This sink is integrated with
+ * Flink's checkpointing mechanism and can provide exactly-once
guarantees; depending on the storage
--- End diff --
the javadocs don't exceed the line limit, please don't reformat them.
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