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From rmetzger <...@git.apache.org>
Subject [GitHub] incubator-flink pull request: Reflect recent changes to Java API d...
Date Thu, 31 Jul 2014 19:46:02 GMT
Github user rmetzger commented on a diff in the pull request:

    https://github.com/apache/incubator-flink/pull/87#discussion_r15664989
  
    --- Diff: docs/java_api_transformations.md ---
    @@ -431,6 +435,30 @@ DataSet<Tuple2<String, Double>>
                        .with(new PointWeighter());
     ```
     
    +#### Join with FlatJoinFunction
    +
    +Analogous to Map and FlatMap, a FlatJoin function behaves in the same
    +way as a JoinFunction, but instead of returning one element, it can
    +return (collect), zero, one, or more elements
    +
    +{% highlight java %}
    +public class PointWeighter
    +         implements FlatJoinFunction<Rating, Tuple2<String, Double>, Tuple2<String,
Double>> {
    +
    +  @Override
    +  public void join(Rating rating, Tuple2<String, Double> weight,
    +
    +	  Collector<Tuple2<String, Double>> out) {
    --- End diff --
    
    This empty line is a bit ugly


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