Do subreports need to be pre-compiled into .jasper

[ministrymason]

I have a main report containing 5 sub reports it all works great in Ireport but If i delete all of the subreport .jasper  files so im left with the subreport.jrxml files. I get the following error when run in eclipse.

JRException=Could not load object from location : C:/jasperReports/subreport.jasper

Does this mean that the subreports all have to be pre compiled before i run the main report? As its saying it cannot find the .jasper?

[me_vsoundar]

Hello,

               The ".jasper" files are similar to ".class" file. When run the application, jasper files are important, bcoz, the compiler needs the jasper files only not the jrxml. if u can run an application without jrxml but not .jasper. so compile the jrxml and put the jasper in the appropriate location and run it.

 

Bye

[tmatyashovsky]

In case when you are creating report from Java code I would suggest to use code similar to listed below:

 

InputStream fullPathToSubReportAsInputStream = new ClassPathResource("SUBREPORT1.jrxml").getInputStream();

 

/* Compiling the report using prepated template. */

JasperReport subreport1 = JasperCompileManager.compileReport(fullPathToSubReportAsInputStream );

 

/* Setting sub report 1 as a parameter of main report. */

parameters.put("SUBREPORT1", subreport1);

 

Hope that will help.

 

Best regards,

Taras Matyashovsky