HOW TO QUERY A DATA SOURCE

[rezaghp]

I am sending the same data source (like parent's) to a sub report.

 

JRMapDataSource for_sub_report = new JRMapDataSource(xxx, procedure, extractParameters(yyy);

parameters.put("SUB_SOURCE", for_sub_report);

 

but i want the sub report to query this data once at the end of my report and do some changes on it. for example i want a group by and count on them in the summary section.

 

 

is this possible ?