how to auto-generate a report with JasperReports - java

I'm working on NetBeans, and want to 'auto-generate' a report with JasperReports.
Here is the deal: I want to create a form that asks for a date frame in order to do a sql query and bring that information; then format it and generate a PDF report out of it.
I see that JasperReports uses the jrxml files compiled to .jasper in order to generate the reports. I want to know if that jrxml could be auto-generated by some code of the API, or it would be needed to edit the jrxml file 'programatically' to auto-generate the report.
Thanks,
gadget00

Take a look at DynamicJasper. It allows you to programmatically create reports without a jrxml file.

try this :
JasperExportManager.exportReportToPdfFile(jprint, pdfFileName);
it works perfectly.

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