Sub Graph Using Java

[amit-kumaryadav]

Hi I'm using the janusgraph v0.6.2 with java application. When I'm trying the subgraph query I'm getting Error during serialization.

Java code: -
-- Object graph = g.V().hasLabel("Template").repeat(__.outE("hasDevice")
.subgraph("sg").inV()).cap("sg").next();

Error:-

org.apache.tinkerpop.gremlin.driver.exception.ResponseException: Error during serialization: java.lang.IllegalStateException

Using below remote-objects.yaml file configuration.

hosts: [localhost]
port: 8182
serializer: {
className: org.apache.tinkerpop.gremlin.driver.ser.GraphBinaryMessageSerializerV1,
config: { ioRegistries: [org.janusgraph.graphdb.tinkerpop.JanusGraphIoRegistry] },
}

[vtslab]

Serialization happens on Gremlin Server, so Gremlin Server needs to be configured to use the TinkerIoRegistryV3d0 in order to be able to serialize the TinkerGraph instance returned by subgraph(). For deserialization to succeed, your remote-object.yaml also needs the additional
TinkerIoRegistryV3d0.
More details can be found in an older discussion:
https://lists.lfaidata.foundation/g/janusgraph-users/topic/79936118#2044
Best wishes, Marc

[vtslab]

See also: #2843