Github user kl0u commented on a diff in the pull request:

    https://github.com/apache/flink/pull/2788#discussion_r89759846
  
    --- Diff: 
flink-streaming-java/src/main/java/org/apache/flink/streaming/api/datastream/KeyedStream.java
 ---
    @@ -173,67 +174,67 @@ public KeyedStream(DataStream<T> dataStream, 
KeySelector<T, KEY> keySelector, Ty
        }
     
        /**
    -    * Applies the given {@link TimelyFlatMapFunction} on the input stream, 
thereby
    +    * Applies the given {@link ProcessFunction} on the input stream, 
thereby
         * creating a transformed output stream.
         *
         * <p>The function will be called for every element in the stream and 
can produce
         * zero or more output. The function can also query the time and set 
timers. When
         * reacting to the firing of set timers the function can emit yet more 
elements.
         *
    -    * <p>A {@link 
org.apache.flink.streaming.api.functions.RichTimelyFlatMapFunction}
    +    * <p>A {@link RichProcessFunction}
         * can be used to gain access to features provided by the
         * {@link org.apache.flink.api.common.functions.RichFunction} interface.
         *
    -    * @param flatMapper The {@link TimelyFlatMapFunction} that is called 
for each element
    +    * @param processFunction The {@link ProcessFunction} that is called 
for each element
         *                      in the stream.
         *
    -    * @param <R> The of elements emitted by the {@code 
TimelyFlatMapFunction}.
    +    * @param <R> The of elements emitted by the {@code ProcessFunction}.
         *
    --- End diff --
    
    <R> The type of elements emitted by the {@code ProcessFunction}.


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