I downloaded two source code
1) rapidminer 7.5
2) rapidminer 5 (old version)
Old version has com.rapidminer.tools.jdbc in which i can find java class for DatabaseHandler. But its not there in new version.
Where are the codes for that in new version? I need to include them in my imports for new operator.
Ah this might be because we used to lock up database connections in versions 6.5 to 7.0. Since this is not my area of expertise, I pinged someone internally.