Re: VertexUpdateFunction

Posted by Martin Junghanns-2 on
URL: http://deprecated-apache-flink-user-mailing-list-archive.369.s1.nabble.com/VertexUpdateFunction-tp13359p13373.html

Hi Ali :)

You could compute the degrees beforehand (e.g. using the
Graph.[in|out|get]degrees()) methods and use the resulting dataset as a
new vertex dataset. You can now run your vertex-centric computation and
access the degrees as vertex value.

Cheers,

Martin


On 29.05.2017 09:28, [hidden email] wrote:

> Hi,
>
> I want to write an iterative algorithm using Gelly (spargel), like:
>
> https://ci.apache.org/projects/flink/flink-docs-release-0.8/spargel_guide.html 
>
>
> My question is how I can access the actual vertex information like the
> vertex degree (in- or outdegree)
> under the subclass of VertexUpdateFunction. A way is maybe to send an
> instance of graph to the constructor.
> However, getting the degree for a vertex in each instance of this
> subclass would be really inefficient.
>
> Thanks,
> Ali
>