How to Display Child Class pass into Jasper Report?

Question

I hope someone can help me to fix my problem. I am creating a report where it needs to show its child class. Person -> History. This is what i did so far:

            if(jComboBox1.getSelectedItem().toString().equalsIgnoreCase("Personal Data Sheet")){
                String reference = "";
                String name = "";
                String homeAddress = "";
                String dob = "";
                ...

                if(application != null){
                    reference = application.getReference();
                    name = application.getApplicant() != null ? application.getApplicant().getCompleteName() : "";
                    homeAddress = application.getApplicant() != null 
                            && !application.getApplicant().getHomeAddress().isEmpty() 
                            ?  application.getApplicant().getHomeAddress().isEmpty() : "";
                    ...
                }
                try {
                    //JRDataSource jrDataSource = new JRBeanCollectionDataSource(datasource);
                    List<Map<String, Object>> datasource = new ArrayList<>();

                    Map<String, Object> map = new HashMap<>();
                    map.put("field1", reference);
                    map.put("field2", name);
                    map.put("field3", homeAddress);
                    ...

                    HistoryService hisService = new HistoryServiceImpl();
                    if(hisService.findHistoryByReference(reference) != null){
                        for(History his: hisService.findHistoryByReference(reference)){
                            map.put("hisNam", his.getName());
                            map.put("hisDesc", his.getDescritpion());
                        }
                    }

                    ...
                    datasource.add(map);

                    JRDataSource jRDataSource = new JRBeanCollectionDataSource(datasource);
                    JasperDesign jasperDesign = JRXmlLoader.load(new File("")
                            .getAbsolutePath() + "/src/org/project120/report/PDSReport.jrxml");
                    JasperReport jasperReport = JasperCompileManager.compileReport(jasperDesign);

                    JasperPrint jasperPrint = JasperFillManager.fillReport(jasperReport, null, jRDataSource);
                    JasperViewer jasperViewer = new JasperViewer(jasperPrint, false);
                    jasperViewer.setVisible(true);
                ...

My problem arises with my for loop. upon viewing the Report generated it only displays the last item on the list. I looked for other solution online and most of it uses subreport but it use with direct connection (query). In my case i am using empty data set.

My desire output is somehing like:

Personal Data Sheet Reference: 12345
Name: Jhon D. Doe
Home Address: Sample Address
Background History(ies):
     History 1   This is history 1
     History 2   This is history 2
     ...

Thank you very much in advance for any help

I did not yet implement the code and i think this where i get lost, but i already created its subreprt layout. — Anirudh Lou, Nov 22 '18 at 22:59
By the way sir, how would I setup the child class as subreport? — Anirudh Lou, Nov 23 '18 at 01:19
Well, from the dusts of my memory, a subreport would need a `List` of objects — MadProgrammer, Nov 23 '18 at 02:22
Duplicates: [JRBeanCollectionDataSource: How to show data from the java.util.List from JavaBean?](https://stackoverflow.com/q/12209300/876298) — Alex K, Nov 23 '18 at 18:43

How to Display Child Class pass into Jasper Report?

0 Answers0