Detect empty jrprint ?

[seboss]

Hello,

 

I'd like to know how can I detect an empty report before loading it with the JRLoader.loadObject() method.

 

Because when I want to export a report (always the same) with several differents dates given in parameter, I've got white pages in the exported pdf (for each date which has no data in the database source).

 

Is it possible ? Thank for help.

[lucianc]

You want to decide whether a report is empty before you load it? I don't think that's possible.

 

If you want to decide whether a report is empty, you first need to set whenNoDataType="NoPages" for the report design and then (when you have the filled report) check jasperPrint.getPages().isEmpty().

 

Regards,

Lucian

[seboss]

I explain again, I use this code :

 

Code:

ArrayList<Object> jpl = new ArrayList<Object>();
String fileGen = JasperFillManager.fillReportToFile(reportPath,parameters, bdd.getConnection());
jpl.add(JRLoader.loadObject(fileGen));

 

I just want to make something like this :

 

Code:

[code] ArrayList<Object> jpl = new ArrayList<Object>(); String fileGen = JasperFillManager.fillReportToFile(reportPath,parameters, bdd.getConnection()); if (!report.isEmpty()) jpl.add(JRLoader.loadObject(fileGen));

 

But I don't understand how to do with jasperPrint.getPages().isEmpty().

Post edited by: seboss, at: 2006/08/31 07:18

[Alexander Merz]

Code:

JasperPrint jasperPrint =
(JasperPrint)JRLoader.loadObject(fileGen);
if(!jasperPrint.getPages().isEmpty()) {
 jpl.add(jasperPrint);
} 

[seboss]

Ok, I didn't see that JRLoader.loadObject() return a jasperprint...

 

Thanks a lot