Need help with simple report built in CR in Eclipse

I'm using the Java SDK in Eclipse to be able to leverage a function that does not appear to be native in Crystal Reports - auto refresh.  Looking at the SDK, it appears straight forward to create a viewer on an existing report (built via Crystal Reports) and then refresh the data in a loop.  First glance at the SDK it appeared CrystalReportViewer would be the right class, but I didn't find that in the CR Java Runtime Library that comes with cr4e download.  So, I used ReportViewerBean, at least to prove out the concept.  Here's the prototype code (high-level), using the bean:

public static void main (...) throws ReportSDKException

     ReportViewerBean viewer = new ReportViewerBean();

     viewer.setReportSource(path to the .rpt file);

     viewer.init();

     viewer.start();

     while (...) {

          viewer.refreshReport();

}

What else is needed to display the report?

Thanks,

Roger