How to pass object list to Subreport?

Question

I have the iReport plugin in netbeans. I’ve already set up the classpath to recognize my classes, I take the following steps:

1 - Send object list Boletim for the main report, each report has information from a student. (This part works, I can generate the data).

2 - Send the 7 lists of notes to the subreport, inside the object Boletim has an object Bimonthly1, Bim2, B3, B4, Examination, Media Anual and Media Final who are of the type Bimestre. Each Bimestre has a list of Notas, Each note has the attributes of matter name, note and missing.

I need to send all note lists to subreport.

So I need to send the lists this way to the subreport

boletim.getBimestre1().getNotas(); //List<Nota>
boletim.getBimestre2().getNotas();//List<Nota>
boletim.getBimestre3().getNotas(); //List<Nota>
boletim.getBimestre4().getNotas();//List<Nota>
boletim.getExame().getNotas(); //List<Nota>
boletim.getNotasAnuais(); //List<Nota>
boletim.getNotasFinais(); //List<Nota>

All these submitted lists have the same size, for each iteration on banda DETAIL do subreport be accessed the next note of the past lists

Main report - here contains the Newsletter object, where you have the class and student data. Also have the lists of grades, these should be sent to the subreport.

My Sub-report (here you should receive the 7 note lists, in order to add the information in the lines below the header, where the cells are blank.)

Researching a little of this form all right, but just send a list, I need to send at least 7 lists

Answer 1

Particularly I don’t like to leave intelligence to Jasper, my suggestion is you create a DTO grade by discipline, and fill this in java.

The idea is that this DTO contains as attributes each of the columns you need in the report.

public class NotaDTO {
    String disciplina;
    Double notaPrimeiroBimestre;
    Double notaSegundoBimestre;
    Double notaTerceiroBimestre;
    Double mediaAnual;
    Double mediaFinal;
    Integer falta;
}

You should then fill in the information on this list (in your case 7) with the information for each discipline/two-month period. This way you would pass only a list of your Noticed as Collection of your subreport.

Note: I suggest you rethink the way you structured your project, because there is no object to represent the Discipline?

Answer 2

Dude, if it’s any help yet, I made this tutorial for what you need: Report Tutorial with subelatories in this case I had a subreport within a list, plus if this in your main report, the steps are the same.