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Ability to read adjacent vertex properties in vertex program
In our graph, related nodes are connected to a master node. So as part of vertex program i was thinking to just get all master nodes and from master node get all connected nodes.
So finally output should be like below and i should be able to read properties from derived list of vertices.
[MasterNode] -> List of connected nodes, ex :
V(masternode) -> [ V(a), V(b), V(c)]
I noticed vertex.inVertex() returns ComputerAdjacentVertex and it does not have properties, all properties are dropped.
Is there any way to read adjacent vertex properties in vertex program? Please note i am not using adjacent vertex property for any traversal logic but want to read just as part of final result.
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In a VertexProgram you cannot read properties from neighbouring vertices using the ComputerAdjacentVertex. You have to pass data between vertices explicitly using the messenger object in the execute method of the VertexProgram:
Best wishes, Marc
Op dinsdag 17 november 2020 om 15:42:02 UTC+1 schreef anj...@...:
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