pnowojski commented on a change in pull request #7199: [FLINK-10662][network] 
Refactor the ChannelSelector interface for single selected channel
URL: https://github.com/apache/flink/pull/7199#discussion_r251489979
 
 

 ##########
 File path: 
flink-runtime/src/main/java/org/apache/flink/runtime/io/network/api/writer/ChannelSelector.java
 ##########
 @@ -37,12 +37,19 @@
        void setup(int numberOfChannels);
 
        /**
-        * Returns the logical channel indexes, to which the given record 
should be
+        * Returns the logical channel index, to which the given record should 
be
 
 Review comment:
   Add: 
   ```
   It is illegal to call `selectChannel` method for broadcast channel selectors 
and this method can remain not implemented (for example by throwing {@link 
UnsupportedOperationException}).
   ```
   ?

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