Andra Lungu created FLINK-2140:
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Summary: Access the number of vertices from within the GSA
functions
Key: FLINK-2140
URL: https://issues.apache.org/jira/browse/FLINK-2140
Project: Flink
Issue Type: New Feature
Components: Gelly
Affects Versions: 0.9
Reporter: Andra Lungu
Similarly to the Vertex-centric approach we would like to allow the user to
access the number of vertices from the Gather, Sum and Apply functions
respectively. This property will become available by setting
[setOptNumVertices()] the numVertices option to true.
The number of vertices can then be accessed in the gather, sum and apply
functions using the getNumberOfVertices() method. If the option is not set in
the configuration, this method will return -1.
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