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https://issues.apache.org/jira/browse/FLINK-3618?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15338595#comment-15338595
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Vasia Kalavri commented on FLINK-3618:
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[~greghogan] are you working on this? It would be nice to make this change for
1.1.0. If you don't have time to finish this, let me know and I'll take over.
Thanks!
> Rename abstract UDF classes in Scatter-Gather implementation
> ------------------------------------------------------------
>
> Key: FLINK-3618
> URL: https://issues.apache.org/jira/browse/FLINK-3618
> Project: Flink
> Issue Type: Improvement
> Components: Gelly
> Affects Versions: 1.1.0, 1.0.1
> Reporter: Martin Junghanns
> Assignee: Greg Hogan
> Priority: Minor
>
> We now offer three Vertex-centric computing abstractions:
> * Pregel
> * Gather-Sum-Apply
> * Scatter-Gather
> Each of these abstractions provides abstract classes that need to be
> implemented by the user:
> * Pregel: {{ComputeFunction}}
> * GSA: {{GatherFunction}}, {{SumFunction}}, {{ApplyFunction}}
> * Scatter-Gather: {{MessagingFunction}}, {{VertexUpdateFunction}}
> In Pregel and GSA, the names of those functions follow the name of the
> abstraction or the name suggested in the corresponding papers. For
> consistency of the API, I propose to rename {{MessageFunction}} to
> {{ScatterFunction}} and {{VertexUpdateFunction}} to {{GatherFunction}}.
> Also for consistency, I would like to change the parameter order in
> {{Graph.runScatterGatherIteration(VertexUpdateFunction f1, MessagingFunction
> f2}} to {{Graph.runScatterGatherIteration(ScatterFunction f1, GatherFunction
> f2}} (like in {{Graph.runGatherSumApplyFunction(...)}})
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