[jira] [Created] (TINKERPOP-2739) ComputerGraph filters out computed properties in keys() and properties() methods

["Boxuan Li (Jira)" <ji...@apache.org>]

Boxuan Li created TINKERPOP-2739:
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             Summary: ComputerGraph filters out computed properties in keys() and properties() methods
                 Key: TINKERPOP-2739
                 URL: https://issues.apache.org/jira/browse/TINKERPOP-2739
             Project: TinkerPop
          Issue Type: Bug
            Reporter: Boxuan Li


In [keys|https://github.com/apache/tinkerpop/blob/da1155f6f4474dc5d2378eebeeb18fe49f22cd37/gremlin-core/src/main/java/org/apache/tinkerpop/gremlin/process/computer/util/ComputerGraph.java#L143-L146] and [properties|https://github.com/apache/tinkerpop/blob/da1155f6f4474dc5d2378eebeeb18fe49f22cd37/gremlin-core/src/main/java/org/apache/tinkerpop/gremlin/process/computer/util/ComputerGraph.java#L170-L173] methods of ComputerElement class, computed keys are filtered out. This behaviour does not make sense to me. On the contrary, [property|https://github.com/apache/tinkerpop/blob/da1155f6f4474dc5d2378eebeeb18fe49f22cd37/gremlin-core/src/main/java/org/apache/tinkerpop/gremlin/process/computer/util/ComputerGraph.java#L148-L151] method in the same class does not have this behaviour. This looks like a bug to me because they are not supposed to have different behaviour.

To see this contradiction, simply change [this|https://github.com/apache/tinkerpop/blob/da1155f6f4474dc5d2378eebeeb18fe49f22cd37/gremlin-core/src/main/java/org/apache/tinkerpop/gremlin/process/computer/ranking/pagerank/PageRankVertexProgram.java#L185] line to:

{code:java}
edgeCount = (Double) vertex.values(EDGE_COUNT).next();
{code}


and then many tests will fail.



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