How to get the IReportLogon from IWebi report

I am trying to get the IReportLogon so that I can setup database connection.

In IReport, I can get the IReportLogon from the following codes

IReportProcessingInfo IRpInfo = (IReportProcessingInfo) iReport.getPluginProcessingInterface("CrystalReport");

ISDKList dbLogon = IRpInfo.getReportLogons();

Iterator iter = dbLogons.iterator();

IReportLogon dbLogon = iter.hasNext() ? (IReportLogon) iter.next(): null;

Is there a way to get the IReportProcessingInfo or the IReportLogon in IWebi?

Thanks for your help