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https://issues.apache.org/jira/browse/FLINK-1523?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14505565#comment-14505565
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ASF GitHub Bot commented on FLINK-1523:
---------------------------------------
Github user andralungu commented on a diff in the pull request:
https://github.com/apache/flink/pull/537#discussion_r28812911
--- Diff:
flink-staging/flink-gelly/src/main/java/org/apache/flink/graph/spargel/VertexCentricIteration.java
---
@@ -228,48 +213,92 @@ public void setInput(DataSet<Vertex<VertexKey,
VertexValue>> inputData) {
{
return new VertexCentricIteration<VertexKey, VertexValue,
Message, EdgeValue>(uf, mf, edgesWithValue, maximumNumberOfIterations);
}
-
+
+ /**
+ * Configures this vertex-centric iteration with the provided
parameters.
+ *
+ * @param parameters the configuration parameters
+ */
+ public void configure(IterationConfiguration parameters) {
+ this.configuration = parameters;
+ }
+
+ /**
+ * @return the configuration parameters of this vertex-centric iteration
+ */
+ public IterationConfiguration getIterationConfiguration() {
+ return this.configuration;
+ }
+
//
--------------------------------------------------------------------------------------------
// Wrapping UDFs
//
--------------------------------------------------------------------------------------------
- private static final class VertexUpdateUdf<VertexKey extends
Comparable<VertexKey> & Serializable,
- VertexValue extends Serializable, Message>
- extends RichCoGroupFunction<Tuple2<VertexKey, Message>,
Vertex<VertexKey, VertexValue>, Vertex<VertexKey, VertexValue>>
- implements ResultTypeQueryable<Vertex<VertexKey, VertexValue>>
+ private static abstract class VertexUpdateUdf<VertexKey extends
Comparable<VertexKey> & Serializable,
+ VV extends Serializable, VertexValue extends Serializable,
Message>
--- End diff --
Perhaps I chose a name that is a bit misleading, here VV is replaced by the
Tuple3<VertexValue, InDegree, OutDegree> when you have the degrees option set
or simply VertexValue if the degrees are not set. I still need the VertexValue
generic type. I can rename VertexValue to VV, EdgeValue to EV, etc and VV to
something else? Something like VertexValueMessagingFunction. I can't think of
a better name :)
Tell me if my intention is clearer now and how to proceed!
> Vertex-centric iteration extensions
> -----------------------------------
>
> Key: FLINK-1523
> URL: https://issues.apache.org/jira/browse/FLINK-1523
> Project: Flink
> Issue Type: Improvement
> Components: Gelly
> Reporter: Vasia Kalavri
> Assignee: Andra Lungu
>
> We would like to make the following extensions to the vertex-centric
> iterations of Gelly:
> - allow vertices to access their in/out degrees and the total number of
> vertices of the graph, inside the iteration.
> - allow choosing the neighborhood type (in/out/all) over which to run the
> vertex-centric iteration. Now, the model uses the updates of the in-neighbors
> to calculate state and send messages to out-neighbors. We could add a
> parameter with value "in/out/all" to the {{VertexUpdateFunction}} and
> {{MessagingFunction}}, that would indicate the type of neighborhood.
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