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Posted to dev@tinkerpop.apache.org by "stephen mallette (JIRA)" <ji...@apache.org> on 2016/08/12 20:04:20 UTC
[jira] [Closed] (TINKERPOP-1145) TraversalSource.script() as a
general-solution to :>
[ https://issues.apache.org/jira/browse/TINKERPOP-1145?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
stephen mallette closed TINKERPOP-1145.
---------------------------------------
Resolution: Won't Fix
Assignee: stephen mallette
The work we have in TINKERPOP-1278 is a better approach to this problem.
> TraversalSource.script() as a general-solution to :>
> ----------------------------------------------------
>
> Key: TINKERPOP-1145
> URL: https://issues.apache.org/jira/browse/TINKERPOP-1145
> Project: TinkerPop
> Issue Type: Improvement
> Components: process
> Affects Versions: 3.1.0-incubating, 3.1.1-incubating
> Reporter: Marko A. Rodriguez
> Assignee: stephen mallette
>
> In {{GraphComputer}}, if the traversal uses a lambda, the user has to use a "remote connection" and submit their traversal as a script-engine {{String}} via:
> {code}
> gremlin> :> g.V().group().by{it.name[0]}
> {code}
> For Gremlin Server, {{:>}} is currently the only way to submit traversals in the Gremlin Console.
> This is all bad. Why? Its Gremlin Console specific and we can solve it more elegantly with the work in TINKERPOP-971 and TINKERPOP-575.
> {code}
> g = graph.traversal().withComputer()
> g.V().group().by("name") // CURRENT AND GOOD
> {code}
> {code}
> g = graph.traversal().withComputer()
> g.script("g.V().group().by{it.name[0]}") // PROPOSED
> {code}
> {code}
> g = graph.traversal().withServer('127.0.0.1:8080')
> g.script("g.V().group().by{it.name[0]}") // PROPOSED
> {code}
> See {{TraversalScriptFunction}} for some pieces of the implementation.
> We could then make {{:>}} simply be shorthand for {{g.script()}}. However, outside the console, {{g.script()}} just works.
> Next, we can assume {{gremlin-groovy}}, but we could also allow:
> {code}
> g = graph.traversal().withServer('127.0.0.1:8080').withStrategies(ScriptEngineStrategy.for("gremlin-scala"))
> g.script("g.V().group().by(??)") // PROPOSED
> {code}
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