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https://issues.apache.org/jira/browse/FLINK-1523?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14492236#comment-14492236
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ASF GitHub Bot commented on FLINK-1523:
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Github user vasia commented on the pull request:
https://github.com/apache/flink/pull/537#issuecomment-92301058
Hey @andralungu!
Now that #547 is merged, the degrees, total number of vertices and
direction can be added as configuration options. This should also simplify
writing the tests. Take a look at `VertexCentricConfigurationITCase`. You
should be able to cover some of the cases by extending it.
I hope rebasing won't be a big pain :-)
If an option is not set and the user tries to call one of the methods that
isn't computed, then we could display a message to inform them that the
corresponding option is not set and how to enable it.
> 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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