Hi Bharat,

I understand your annoyance while porting your application, but to me the JanusGraph behaviour seems to be more consistent (by the way, I did not check the difference in behaviour you report, I just took your observation for granted). If you want the old Titan behaviour you can simply typecast your variable-type properties to their common denominator (like String, Long, Double, Object, whatever does the job) before you pass them to JanusGraph.

HTH,    Marc

Op zaterdag 5 oktober 2019 07:31:56 UTC+2 schreef Bharat Dighe:

There is a significant difference in the way Titan and Janus handles properties with the same name which have values with different datatypes.

Titan allows it but Janus does not. 

I am in a process to port my app which is using Titan to Janus and this is causing a major issue. In my app the properites are added dynamically. Other than few fixed properties and there is no predictibility of which properties and their datatypes.

Is there a way Janus can be made to behave same as Titan?

here is an example of the difference of behavior between Titan and Janus

Titan

=====

gremlin> v1=graph.addVertex();

==>v[4144]

gremlin> v2=graph.addVertex();

==>v[4096]

gremlin> v1.property("status", 1);

==>vp[status->1]

gremlin> v2.property("status","connected");

==>vp[status->connected]

gremlin> v1.property("size", 2000000)

==>vp[size->2000000]

gremlin> v2.property("size", 3000000000);

==>vp[size->3000000000]

gremlin> v1.property("status").value().getClass();

==>class java.lang.Integer

gremlin> v2.property("status").value().getClass();

==>class java.lang.String

gremlin> v1.property("size").value().getClass();

==>class java.lang.Integer

gremlin> v2.property("size").value().getClass();

==>class java.lang.Long

Janus

=====

gremlin> v1=graph.addVertex();

==>v[4104]

gremlin> v2=graph.addVertex();

==>v[4176]

gremlin> v1.property("status", 1);

==>vp[status->1]

gremlin> graph.tx().commit();

==>null

gremlin> v2.property("status","connected");

Value [connected] is not an instance of the expected data type for property key [status] and cannot be converted. Expected: class java.lang.Integer, found: class java.lang.String

Type ':help' or ':h' for help.

Display stack trace? [yN]n

gremlin> v1.property("size", 2000000)

==>vp[size->2000000]

gremlin> v2.property("size", 3000000000);

Value [3000000000] is not an instance of the expected data type for property key [size] and cannot be converted. Expected: class java.lang.Integer, found: class java.lang.Long

Type ':help' or ':h' for help.

Display stack trace? [yN]n

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