[jira] [Created] (FLINK-2663) Update Gelly library methods to use any key type

[Shang Yuanchun (Jira)]

Vasia Kalavri created FLINK-2663:
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             Summary: Update Gelly library methods to use any key type
                 Key: FLINK-2663
                 URL: https://issues.apache.org/jira/browse/FLINK-2663
             Project: Flink
          Issue Type: Improvement
          Components: Gelly
            Reporter: Vasia Kalavri


Several Gelly library methods assume a certain key/value type even if not really necessary. For example, CommunityDetection assumes Long vertex keys and values, ConnectedComponents assumes Long keys, etc.
We should update the Gelly library methods to use any key type and vertex/edge value types when possible.



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