Github user vasia commented on a diff in the pull request: https://github.com/apache/flink/pull/576#discussion_r28595115 --- Diff: flink-staging/flink-gelly/src/main/java/org/apache/flink/graph/EdgeDirection.java --- @@ -20,10 +20,10 @@ /** * The EdgeDirection is used to select a node's neighborhood - * by the {@link Graph#reduceOnEdges(EdgesFunction, EdgeDirection)}, - * {@link Graph#reduceOnEdges(EdgesFunctionWithVertexValue, EdgeDirection)}, - * {@link Graph#reduceOnNeighbors(NeighborsFunction, EdgeDirection)} and - * {@link Graph#reduceOnNeighbors(NeighborsFunctionWithVertexValue, EdgeDirection)} + * by the {@link Graph#groupReduceOnEdges(EdgesFunction, EdgeDirection)}, --- End diff -- isn't it used in both cases?
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