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From "Alessandro Presta (JIRA)" <>
Subject [jira] [Created] (GIRAPH-240) Our vertices shouldn't accept null ids or values
Date Fri, 06 Jul 2012 17:41:33 GMT
Alessandro Presta created GIRAPH-240:

             Summary: Our vertices shouldn't accept null ids or values
                 Key: GIRAPH-240
             Project: Giraph
          Issue Type: Bug
          Components: graph
            Reporter: Alessandro Presta

I may be missing something, but I don't understand why HashMapVertex and EdgeListVertex (and
possibly others) check for null vertexId and vertexValue instead of complaining.

Shouldn't each vertex be forced to have an id and a value? It's a source of potential bugs
(see the serialization code that has to check for null and read/write a boolean flag) and
I don't see the logic.
If one doesn't want vertex/edge values at all there's always NullWritable.

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