MongoDB Connection

Hi,

I am trying to create a report using two different datasources. I already succeeded in creating one with two distinct MySQL databases. To do this I used the following as a Connection Expression in my subreport: 

    java.sql.DriverManager.getConnection("jdbc:mysql://hostname:3306/dbname","user","password")

Now I am trying to use MySQL as the datasource for my main report but a MongoDB datasource in the subreport.

Is there a way to do this? More specifically, what can I use as a Connection Expression to create a connection to my MongoDB database?

Thanks,

Javier Guzman