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https://issues.apache.org/jira/browse/TINKERPOP-479?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15181812#comment-15181812
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stephen mallette commented on TINKERPOP-479:
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This is kinda interesting:
{code}
g.V().has("person","name","jon").orCreate()
{code}
so {{orCreate}} would assume that 'name', 'jon' was unique and use that to
create the vertex. Would you expand {{orCreate}} to take parameters for other
"initial" properties - like:
{code}
g.V().has("person","name","jon").orCreate("age",42)
{code}
I think that's a pretty common pattern. You determine existence and then if no
present initialize a bunch of properties on the newly created vertex. I'd even
go so far as to perhaps consider an overload of {{orCreate}} with a
{{UnaryOperator<Vertex>}} parameter or something so that there was full
flexibility there to deal with that vertex after creation.
> Consider Providing "getOrCreate" Functionality
> ----------------------------------------------
>
> Key: TINKERPOP-479
> URL: https://issues.apache.org/jira/browse/TINKERPOP-479
> Project: TinkerPop
> Issue Type: Improvement
> Components: structure
> Affects Versions: 3.0.2-incubating
> Reporter: stephen mallette
>
> One of the most commonly written functions used is good ol' "getOrCreate"
> where you want to get a {{Vertex}} if it exists or create it with supplied
> properties if it does not. We currently have a "helper" function for this on
> {{ElementHelper}}
> https://github.com/tinkerpop/tinkerpop3/blob/6d0f00865f673cb0739f6f310e1868425f732924/gremlin-core/src/main/java/com/tinkerpop/gremlin/structure/util/ElementHelper.java#L62
> but perhaps it is time to treat this issue as a first class citizen as part
> of the Graph API. I think that some vendors might actually be able to
> optimize this function as well.
> Another aspect of "getOrCreate" is "upsert" as well as options to ensure
> uniqueness. All of these things we've at some point or another built
> variations of outside of TinkerPop for applications, data loading, etc.
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