How Vector<Vector> Receipt used as JasperReports DataSource with Java?

Question

I have a Vector receiptOrder and I want to print that receipt to thermal printer using iReport.

I get 3 classes:

• MyDataSource which implements JRDataSource

• MyDataSourceProvider which implements JRDataSourceProvider

• JRBasicField which implements JRField

How I can setup the JasperReports datasource with that vector?

• i made this changes .

  • load jrxml file

    JasperDesign jasperDesign = JRXmlLoader.load("c:/PrintReceipt.jrxml");
    JasperReport jr = JasperCompileManager.compileReport(jasperDesign);
    

  • pass orderRows which is Vector<Vector> to MyDataSourceProvider then Create datasource

    JRDataSourceProvider dsp = new MyDataSourceProvider(orderRows);
    JRDataSource dataSource = dsp.create(jr);
    JasperPrint jasperPrint = JasperFillManager.fillReport(jr, new HashMap(), dataSource);
    JasperExportManager.exportReportToPdfFile(jasperPrint, "c:/test.pdf");
    JasperViewer.viewReport(jasperPrint);
    

• but JasperReport show me empty view and also test.pdf is empty .

• any idea ...?

Answer 1

• I fixed my problem .
• The problem because of MyDataSourceProvider fields didn't match ireport.jrxml fields
• After i fix that problem All thing work good .