How to return variables from Report to Java

[vmstepanov]

Hi ALL,

How can I return value of variable from jasper report to caller java code?

 

Pseudo-code:

set report parameters

run report

get some variable back from report

make decision depending on previous step

 

Or

 

Map parameters = new HashMap();

parameters.put(key, "value");

 

JasperPrint jasperPrint = JasperFillManager.fillReportToFile(fileName, parameters, getConnection());

 

String pageCount = jasperPrint.getVariableValue("PAGE_COUNT"); //METHOD NOT EXISTS, just fantasy

 

followingJavaProcessing(pageCount);

 

I believe this issue could be solved using scriptlet, but I have no idea how to return something from scriptlet in multithreaded environment.

[minu-moto]

BaseReportFiller filler = (BaseReportFiller) JRFiller.createReportFiller(DefaultJasperReportsContext.getInstance(), jasperReport);
JasperPrint jPrint = filler.fill(parameters, getConnection());
Object pageCount = filler.getVariableValue("PAGE_COUNT");