[
https://issues.apache.org/jira/browse/TINKERPOP-2226?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]
stephen mallette updated TINKERPOP-2226:
----------------------------------------
Labels: (was: features)
Priority: Major (was: Critical)
Component/s: (was: tinkergraph)
Issue Type: Improvement (was: Bug)
On the one hand, TinkerPop's element label semantics only account for a single
immutable label, so this is behaving just as a standard TinkerPop-enabled
system would. You do get:
{code}
g.addV('human::animal')
{code}
and thus multiple immutable labels by way of special syntax accepted by
{{Neo4jGraph}} which will work in all language variants. Neo4j also has
{{LabelP}} in Java to allow for multi-label access:
{code}
gremlin> g.V().has(label,'organism')
gremlin> g.V().has(label,of('organism'))
==>v[0]
gremlin> g.V().has(label,of('organism')).has(label,of('animal'))
==>v[0]
gremlin> g.V().has(label,of('organism').and(of('animal')))
==>v[0]
{code}
but that isn't exposed in GLVs like python.
I think that the workaround now for GLV users is to use scripts. As for a
solution, most of what I can come up with in my mind will end up being useful
on the JVM only (which will mean GLV users will still have to depend on
scripts). I have no idea what a solution would be for GLVs as we don't have
structure for provider specific extensions (similar problem with
sparql-gremlin).
> addLabel() and removeLabel() method of Java API is not exposed for Gremlin
> Language
> -----------------------------------------------------------------------------------
>
> Key: TINKERPOP-2226
> URL: https://issues.apache.org/jira/browse/TINKERPOP-2226
> Project: TinkerPop
> Issue Type: Improvement
> Components: neo4j, python, server
> Affects Versions: 3.3.6
> Reporter: Ravindra Gupta
> Priority: Major
>
> *labels(), addLabel(), and removeLabel() *methods of Neo4jVertex of Java API
> is not exposed or available for gremlin-server language. This method should
> be exposed to gremlin-server language.
> Thank you.
--
This message was sent by Atlassian JIRA
(v7.6.3#76005)
