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stephen mallette commented on TINKERPOP-2078:
---------------------------------------------
Re-worked a bit. Killed {{ReferenceGraph}} in favor of
{{AnonymousTraversalSource}} with static {{traversal()}} methods that allow for
this style:
{code}
gremlin> g = traversal(TinkerFactory.createModern())
==>graphtraversalsource[tinkergraph[vertices:6 edges:6], standard]
gremlin> g = traversal('conf/remote-graph.properties')
==>graphtraversalsource[emptygraph[empty], standard]
gremlin> g = traversal(DriverRemoteConnection.using('localhost',8182))
==>graphtraversalsource[emptygraph[empty], standard]
{code}
It does unify the API for that initial {{TraversalSource}} construction, so
that's good, but it relies on the same underlying methods that we already have.
It also shorthands "remote" construction and gets {{EmptyGraph}} usage out of
sight. It exists parallel to the current methods for {{TraversalSource}}
creation, so it's like "another thing". A nice deprecation route would be good
to hide away what we don't want users doing anymore, but I'm not sure I see a
method for doing that just yet.
Also, doesn't prevent weirdness like:
{{traversal(TinkerGraph.open()).withRemote(...)}}.
> ReferenceGraph rather than EmptyGraph or RemoteGraph
> ----------------------------------------------------
>
> Key: TINKERPOP-2078
> URL: https://issues.apache.org/jira/browse/TINKERPOP-2078
> Project: TinkerPop
> Issue Type: Improvement
> Components: structure
> Affects Versions: 3.3.4
> Reporter: stephen mallette
> Assignee: stephen mallette
> Priority: Major
>
> {{RemoteGraph}} was long ago deprecated for {{withRemote()}} typically
> spawned from {{EmptyGraph}} which is weird. Create {{ReferenceGraph}} which
> sets up some 4.x concepts (given current thinking). For GLVs, make sure
> {{EmptyGraph}} didn't leak into them and deal with those issues as needed.
> Update all docs to stop using {{EmptyGraph}}.
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