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From "Andra Lungu (JIRA)" <j...@apache.org>
Subject [jira] [Created] (FLINK-1975) Graph getUndirected improvement
Date Tue, 05 May 2015 17:05:00 GMT
Andra Lungu created FLINK-1975:

             Summary: Graph getUndirected improvement 
                 Key: FLINK-1975
                 URL: https://issues.apache.org/jira/browse/FLINK-1975
             Project: Flink
          Issue Type: Improvement
          Components: Gelly
    Affects Versions: 0.9
            Reporter: Andra Lungu
            Assignee: Andra Lungu
            Priority: Minor

The current getUndirected method uses a union and a map to add the reverse edges to the graph.
This could be done by simply using a flatMap that adds the edge and its reversed version -
a flatMap is less expensive than a union followed by a map.  

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