How to add JasperReportsPdfView in vaadin layout

Flow
1 
public class ReportView extends ReportDesign implements View{
	
	private final ReportService reportService;
	
	
	@Autowired
	public ReportView(ReportService reportService) {
		this.reportService = reportService;
	}
	
	@Autowired
	private ApplicationContext appContext;

	@Override
	public void enter(ViewChangeEvent event) {
			
	}
	
	@PostConstruct
	public void init() {
	
		JasperReportsPdfView view = new JasperReportsPdfView();
		view.setUrl("classpath:/reports/user.jrxml");
		view.setApplicationContext(appContext);
		Map<String, Object> params = new HashMap<String, Object>();
		params.put("datasource", reportService.report());
	
	}
2

That fully depends on what ‘ReportDesign’ is. If it is a basic layout, you can just call add(view) (Vaadin 10+) or addComponent(view) (Vaadin 8). If it is a HTML design, you need to find whatever element in the design the report should go to, and bind that to the java class using the @Id annotation (and then add the view there). Some documentation for Vaadin 10+ and templates can be found [here]
(https://vaadin.com/docs/flow/polymer-templates/tutorial-template-components.html).

Which Vaadin version are you using?

3

I’m using vaadin 8. It is a basic layout, created with vaadin designer.

4

OK, the relevant documentation for Vaadin 8 can be found here: [https://vaadin.com/docs/v8/framework/application/application-declarative.html#application.declarative.identifiers]
(https://vaadin.com/docs/v8/framework/application/application-declarative.html#application.declarative.identifiers).

As I mentioned, the design itself needs a wrapper component that you can then add your content to. That wrapper should have an ID specified, that you then use to access the wrapper from Java.