Hi Yi Zhou, are you referring to the VertexCentricIteration's message type? If yes, sure, you can certainly use a Tuple2 there. For example, look at the community Detection library method [1]. It uses a Tuple2<Long, Double> as message type.
-Vasia. [1]: https://github.com/apache/flink/blob/master/flink-staging/flink-gelly/src/main/java/org/apache/flink/graph/library/SimpleCommunityDetection.java On 6 April 2015 at 21:26, Yi ZHOU <zhouyi0...@hotmail.com> wrote: > I have a question about Gelly, can i use Tuple2<K, Double> as message type? > > >
