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https://issues.apache.org/jira/browse/TINKERPOP-1415?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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stephen mallette closed TINKERPOP-1415.
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Assignee: stephen mallette
Moving from resolved to closed.
> Vertex programs that rely on getting path parameters can't work
> ---------------------------------------------------------------
>
> Key: TINKERPOP-1415
> URL: https://issues.apache.org/jira/browse/TINKERPOP-1415
> Project: TinkerPop
> Issue Type: Bug
> Components: process
> Affects Versions: 3.2.1
> Reporter: Bryn Cooke
> Assignee: stephen mallette
>
> Recently some of our vertex programs have started failing.
> They rely of being able to retrieve an element out of the path.
> However, whereas this used to work now the path element isn't there anymore.
> The root cause is that path retraction doesn't know that the vertex program
> is interested in the path and therefore culls out parameter.
> I can understand why it does this, but there seems to be no way of exposing
> the vertex program path requirements such that PathRetractionStrategy can
> pick them up and do the right thing.
> I tried hacking together a solution by making ProgramVertexProgramStep
> implement Scoping. This did fix the issue, but I am not confident that this
> is the way to go.
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