Cannot set backing bean parameter using f:setPropertyActionListener

Question

I got trouble in JSF when I try to delete the row content from database through commandLink inside dataTable element. So I got the bean with viewScopped and managedScoped like this :

@ViewScoped
@ManagedBean
public class DivisiController implements Serializable{
    private static final long serialVersionUID = 1L;

    private String konten;
    private String deskripsi;
    private Long id;

    private Divisi selectedDivisi;

    public Long getId() {
        return id;
    }

    public void setId(Long id) {
        this.id = id;
    }

    public Divisi getSelectedDivisi() {
        if(selectedDivisi == null){
            selectedDivisi = new Divisi();
        }
        return selectedDivisi;
    }

    public void setSelectedDivisi(Divisi selectedDivisi) {
        this.selectedDivisi = selectedDivisi;
    }

    public String getKonten() {
        return konten;
    }

    public void setKonten(String konten) {
        this.konten = konten;
    }

    public String getDeskripsi() {
        return deskripsi;
    }

    public void setDeskripsi(String deskripsi) {
        this.deskripsi = deskripsi;
    }        

    public void halo(){
        System.out.println("Hi, I'm halo");
    }

    public void delete(){
        DivisiDAO dao = new DivisiDAO();
        dao.beginTransaction();
        try{
            Divisi persistedDivisi = dao.findReferenceOnly(selectedDivisi.getId());
            dao.delete(persistedDivisi);
        }
        catch(Exception e){
            dao.rollback();
            addMessage("System Error", "Please try again later.");
            e.printStackTrace();
        }

        dao.commitAndCloseTransaction();
    }


    public void addMessage(String summary, String detail) {
        FacesMessage message = new FacesMessage(FacesMessage.SEVERITY_INFO, summary, detail);
        FacesContext.getCurrentInstance().addMessage(null, message);
    }
}

Then, I try to set selectedDivisi value when delete button clicked from the jsf page. And hope that my delete method would be delete the selected value.

I attempt to send item, as a division value, through f:setPropertyActionListener

But unfortunately, I always stuck with null value at my backing bean (DivisiController). I try to debug, set breakpoint at my selectedDivisi setter, and the result is, the selectedDivisi value null. It seems like, my selectedDivisi never set with #{item} from my button. Here is the snippet of, how I manage to draw html from jsf, and call my backing bean to perform an action.


    
    

        
            
                
                    
                        
                         Daftar Divisi
                
                    
                         Buat Divisi
                
            

            
                
                    
                        
                            
                                
                            
                        
                    
                

                
                    
                        
                            
                        
                    
                    
                        
                            Buat Baru

That was the index.html, which included the list.xhtml (as you can see), and here is list.xhtml snippet :

As you can see at the last snippet, I try to set the selectedDivisi through this snippet :

But it always error. And if I try to direct pass the {item} to my delete method from bean (if I set the delete method with input parameter), then it will goes same with the previous technique(from ).

So, how this can happened, and what the thing that makes it mess?

Thanks in advance with your help.

Cannot set backing bean parameter using f:setPropertyActionListener

Answers (1)

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