Janusgraph vertex property with cardinality as SET type

Hi, need a working example of how a property can be added to a vertex with cardinality as SET type and how we can retrieve it and assign it to SET of strings in JAVA.

Please note: I have tried the janusgraph doc code, google search, chat GPT but every time I put something in that property through java code it get stored in STRING format only.

Ex: "["ABC"]" --> current , ["ABC"] --> this I need.

Please help.

Solution

for JanusGraph you'd want to set up the schema for your multiproperty:

mgmt = graph.openManagement()
mgmt.makePropertyKey('p').dataType(String.class).cardinality(Cardinality.SET).make()
mgmt.commit()

mgmt = graph.openManagement()
mgmt.makePropertyKey('p').dataType(String.class).cardinality(Cardinality.SET).make()
mgmt.commit()

mgmt = graph.openManagement()
mgmt.makePropertyKey('p').dataType(String.class).cardinality(Cardinality.SET).make()
mgmt.commit()

mgmt = graph.openManagement()
mgmt.makePropertyKey('p').dataType(String.class).cardinality(Cardinality.SET).make()
mgmt.commit()

then for Gremlin it should just be

g.addV().
  property(set, 'p', 'value-a').
  property(set, 'p', 'value-b')

g.addV().
  property(set, 'p', 'value-a').
  property(set, 'p', 'value-b')

g.addV().
  property(set, 'p', 'value-a').
  property(set, 'p', 'value-b')

g.addV().
  property(set, 'p', 'value-a').
  property(set, 'p', 'value-b')

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Janusgraph vertex property with cardinality as SET type

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