Philip Graff created TINKERPOP-1862:
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Summary: TinkerGraph VertexProgram message passing doesn't work
properly when using Direction.BOTH
Key: TINKERPOP-1862
URL: https://issues.apache.org/jira/browse/TINKERPOP-1862
Project: TinkerPop
Issue Type: Bug
Reporter: Philip Graff
I think the messages are being sent properly in TinkerMessenger, but when I
call messenger.receiveMessages(), the vertex is getting messages from the
outVertex of their edges regardless of the edge direction. This is due to line
71 of TinkerMessenger (linked below) which calls
Edge.vertices(direction).next(), thus getting the first result out of the
Vertex iterator. For IN or OUT, this isn't a problem. But for BOTH, following
line 124 of TinkerEdge (linked below), the outVertex is always returned first.
TinkerMessenger needs to be modified to return the correct vertex (I think it's
the one that != this.vertex).
https://github.com/apache/tinkerpop/blob/master/tinkergraph-gremlin/src/main/java/org/apache/tinkerpop/gremlin/tinkergraph/process/computer/TinkerMessenger.java#L71
https://github.com/apache/tinkerpop/blob/master/tinkergraph-gremlin/src/main/java/org/apache/tinkerpop/gremlin/tinkergraph/structure/TinkerEdge.java#L124
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