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https://issues.apache.org/jira/browse/TINKERPOP3-974?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]
Sebastian Estevez updated TINKERPOP3-974:
-----------------------------------------
Description:
It would be very useful to be able to do something like this:
{code}
gremlin> possibleFriends =
out('rated').inE('rated').has('stars',5).outV().groupCount().order(local).by(valueDecr).limit(local,1).mapKeys()
gremlin> g.V('u2590').map(possibleFriends)
{code}
Marko suggested the following workaround method using `; null` and `.clone()`
{code}
gremlin> possibleFriends =
out('rated').inE('rated').has('stars',5).outV().groupCount().order(local).by(valueDecr).limit(local,1).mapKeys();
null
==>null
gremlin> g.V('u2590').map(possibleFriends.clone())
==>v[u4277]
gremlin> g.V('u2590').map(possibleFriends.clone())
==>v[u4277]
gremlin> g.V('u2590').map(possibleFriends.clone())
==>v[u4277]
gremlin> possibleFriends.clone()
gremlin> possibleFriends.clone()
gremlin> possibleFriends.clone()
gremlin> possibleFriends.clone()
gremlin> possibleFriends.clone()
gremlin> possibleFriends.clone()
gremlin> possibleFriends
gremlin> g.V('u2590').map(possibleFriends.clone())
The traversal strategies are complete and the traversal can no longer be
modulated
Display stack trace? [yN]
{code}
https://gist.github.com/okram/9feb6940c749ed9a3058
Having a nice way of breaking down complex gremlin into functions and using
them later would help modularize gremlin queries and improve readability and
maintenance.
was:
It would be very useful to be able to do something like this:
{code}
gremlin> possibleFriends =
out('rated').inE('rated').has('stars',5).outV().groupCount().order(local).by(valueDecr).limit(local,1).mapKeys()
gremlin> g.V('u2590').map(possibleFriends)
{code}
Marko suggested the following workaround method using `; null` and `.clone()`
{code}
gremlin> possibleFriends =
out('rated').inE('rated').has('stars',5).outV().groupCount().order(local).by(valueDecr).limit(local,1).mapKeys();
null
==>null
gremlin> g.V('u2590').map(possibleFriends.clone())
==>v[u4277]
gremlin> g.V('u2590').map(possibleFriends.clone())
==>v[u4277]
gremlin> g.V('u2590').map(possibleFriends.clone())
==>v[u4277]
gremlin> possibleFriends.clone()
gremlin> possibleFriends.clone()
gremlin> possibleFriends.clone()
gremlin> possibleFriends.clone()
gremlin> possibleFriends.clone()
gremlin> possibleFriends.clone()
gremlin> possibleFriends
gremlin> g.V('u2590').map(possibleFriends.clone())
The traversal strategies are complete and the traversal can no longer be
modulated
Display stack trace? [yN]
{code}
https://gist.github.com/okram/9feb6940c749ed9a3058
> Saving headless traversals (clone Iterator Fun)
> -----------------------------------------------
>
> Key: TINKERPOP3-974
> URL: https://issues.apache.org/jira/browse/TINKERPOP3-974
> Project: TinkerPop 3
> Issue Type: New Feature
> Reporter: Sebastian Estevez
>
> It would be very useful to be able to do something like this:
> {code}
> gremlin> possibleFriends =
> out('rated').inE('rated').has('stars',5).outV().groupCount().order(local).by(valueDecr).limit(local,1).mapKeys()
> gremlin> g.V('u2590').map(possibleFriends)
> {code}
> Marko suggested the following workaround method using `; null` and `.clone()`
> {code}
> gremlin> possibleFriends =
> out('rated').inE('rated').has('stars',5).outV().groupCount().order(local).by(valueDecr).limit(local,1).mapKeys();
> null
> ==>null
> gremlin> g.V('u2590').map(possibleFriends.clone())
> ==>v[u4277]
> gremlin> g.V('u2590').map(possibleFriends.clone())
> ==>v[u4277]
> gremlin> g.V('u2590').map(possibleFriends.clone())
> ==>v[u4277]
> gremlin> possibleFriends.clone()
> gremlin> possibleFriends.clone()
> gremlin> possibleFriends.clone()
> gremlin> possibleFriends.clone()
> gremlin> possibleFriends.clone()
> gremlin> possibleFriends.clone()
> gremlin> possibleFriends
> gremlin> g.V('u2590').map(possibleFriends.clone())
> The traversal strategies are complete and the traversal can no longer be
> modulated
> Display stack trace? [yN]
> {code}
> https://gist.github.com/okram/9feb6940c749ed9a3058
> Having a nice way of breaking down complex gremlin into functions and using
> them later would help modularize gremlin queries and improve readability and
> maintenance.
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