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https://issues.apache.org/jira/browse/TINKERPOP-3261?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=18092447#comment-18092447
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ASF GitHub Bot commented on TINKERPOP-3261:
-------------------------------------------
spmallette commented on code in PR #3483:
URL: https://github.com/apache/tinkerpop/pull/3483#discussion_r3494634794
##########
gremlin-core/src/main/java/org/apache/tinkerpop/gremlin/structure/io/graphson/GraphSONSerializersV4.java:
##########
@@ -432,8 +438,14 @@ public Edge deserialize(final JsonParser jsonParser, final
DeserializationContex
e.setId(deserializationContext.readValue(jsonParser,
Object.class));
} else if
(jsonParser.getCurrentName().equals(GraphSONTokens.LABEL)) {
jsonParser.nextToken();
+ final java.util.Set<String> labels = new
java.util.LinkedHashSet<>();
Review Comment:
necessary for edges? they don't have multilabel concepts right?
> Enable multiple label support on vertex with configurable label cardinality
> ---------------------------------------------------------------------------
>
> Key: TINKERPOP-3261
> URL: https://issues.apache.org/jira/browse/TINKERPOP-3261
> Project: TinkerPop
> Issue Type: Task
> Affects Versions: 4.0.0
> Reporter: Yang Xia
> Priority: Major
>
> Vertices are currently limited to a single immutable label assigned at
> creation. This prevents modeling common real-world scenarios where entities
> naturally belong to multiple categories (e.g., a person who is both an
> employee and a manager).
>
> Introduce a configurable LabelCardinality that controls how many labels a
> vertex may have and whether they can be mutated after creation. Three
> proposed modes: ONE (current behavior, default), ONE_OR_MORE (mutable,
> minimum one), ZERO_OR_MORE (fully flexible).
>
> New steps:
>
> - labels() — flatMap step emitting each label as a traverser
> - addLabel(String, String...) — add labels to a vertex
> - dropLabel(String, String...) — remove specific labels
> - dropLabels() — remove all labels
> Edge labels remain at cardinality ONE. The infrastructure would support
> future edge multi-label enablement without wire format changes.
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