"OrientDB error occurred during the retrieval of the double value at column 'age'"

kwoxer

I tried using RapidMiner with OrientDB like in http://www.kwoxer.de/2014/11/05/rapidminer-mit-orientdb-jdbc-verbinden-tutorial/ (German)

So I have a Class Person with some entrys in there.

Now I SELECT the name of the Persons. That works great (http://i.imgur.com/IKztCFj.png).

But somehow if I want to select anything else than a String value. I always get this error message.

As an example the Person Class hat the property age, which is an integer: http://i.imgur.com/GH5EwwH.png

Is there anything I can do about this. Why does it work for Strings but not for the other datatypes? Mabye using another Operator or casting the values before?

Marco_Boeck

Hi,

can you post the exception which occurs in the rapidminer.log file found in the .RapidMiner5 directory? I just googled the error and it is hardcoded in the JDBC driver here: https://github.com/robfrank/orientdb-jdbc/blob/master/src/main/java/com/orientechnologies/orient/jdbc/OrientJdbcResultSet.java
My first guess would be that the driver says the column "age" is of type A while in reality it is of type B. But that's only a guess without seeing the full error.

Regards,
Marco