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https://issues.apache.org/jira/browse/FLINK-1514?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14501471#comment-14501471
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ASF GitHub Bot commented on FLINK-1514:
---------------------------------------
Github user vasia commented on a diff in the pull request:
https://github.com/apache/flink/pull/408#discussion_r28645615
--- Diff:
flink-staging/flink-gelly/src/main/java/org/apache/flink/graph/gsa/RichEdge.java
---
@@ -0,0 +1,47 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements. See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership. The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License. You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package org.apache.flink.graph.gsa;
+
+import org.apache.flink.api.java.tuple.Tuple2;
+
+import java.io.Serializable;
+
+/**
+ * This class represents a <sourceVertex, edge> pair
+ * This is a wrapper around Tuple2<VV, EV> for convenience in the
GatherFunction
+ * @param <VV> the vertex value type
+ * @param <EV> the edge value type
+ */
+public class RichEdge<VV extends Serializable, EV extends Serializable>
--- End diff --
I don't really like the name `RichEdge`, but I don't have a better
suggestion.. It's essentially a pair of the neighboring edge and vertex value,
right? Should we simply call it `Neighbor` or `NeighborData` or `NeighborValue`?
> [Gelly] Add a Gather-Sum-Apply iteration method
> -----------------------------------------------
>
> Key: FLINK-1514
> URL: https://issues.apache.org/jira/browse/FLINK-1514
> Project: Flink
> Issue Type: New Feature
> Components: Gelly
> Affects Versions: 0.9
> Reporter: Vasia Kalavri
> Assignee: Daniel Bali
>
> This will be a method that implements the GAS computation model, but without
> the "scatter" step. The phases can be mapped into the following steps inside
> a delta iteration:
> gather: a map on each < srcVertex, edge, trgVertex > that produces a partial
> value
> sum: a reduce that combines the partial values
> apply: join with vertex set to update the vertex values using the results of
> sum and the previous state.
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