PrimeFaces switch with initial value

Question

I have a PrimeFaces inputSwitch:

<p:inputSwitch id="snoozeSwitch" value="#{dashBController.snooze}" valueChangeListener="#{dashBController.updateSnoozeStatus}">
    <p:ajax listener="#{dashBController.updateSnoozeStatus}" update="msgSnooze" />
</p:inputSwitch>

Now I want to give this switch an initial value from my DB. I get the value with:

@PostConstruct
public void init() {
    if (!FacesContext.getCurrentInstance().isPostback()) {
        snooze = getSnoozeStatus();
    }
}

But I have trouble to update the old value with the new one.

public void updateSnoozeStatus() {
  if(snooze == true) {
    DBconnector.updateSnooze("true");
  } else {
    DBconnector.updateSnooze("false");
  }
}

The problem: My app always uses the inital value and so the switch is stucking on the state it has originally. Maybe @BalusC knows the answer :)

Where you defined this method: `updateSnoozeStatus` that is the one you are calling on the listener attribute — Jorge Campos, Aug 13 '15 at 13:20
I am sorry. updateSnooze() actually is updateSnoozeStatus() - missed it in my transfer to stackoverflow. — Marcel, Aug 13 '15 at 13:22
Why that `valueChangeListener`? Get rid of it and reverify your question. — BalusC, Aug 13 '15 at 21:15
I removed the `valueChangeListener` - but it does not solve the problem. Can PrimeFaces inputSwitch handle objects of type **Boolean** instead of the primitive type **boolean**? (compare to answer below from @ForguesR — Marcel, Aug 14 '15 at 09:00
I had a similar problem that i resolved using immediate="true" — ℛɑƒæĿᴿᴹᴿ, Jan 22 '19 at 19:53
What is the scope of your bean ? What is the declaration of snooze ? See also : https://stackoverflow.com/questions/11879138/when-to-use-valuechangelistener-or-fajax-listener — fdelsert, Jul 18 '19 at 10:05

ForguesR · Answer 1 · 2015-08-14T13:22:31.610

0

Unless I am missing something your solution seems complex for something very simple. Why don't you just use a getter and a setter?

The getter should load the value from the database and the setter should save it. I couldn't test the code below because I don't have PF 5.0.4 but it should be a good start.

public class DashBController {

  private Boolean snooze = null;

  public boolean isSnooze() {
    if (snooze == null) {
      snooze = getSnoozeStatus();
    }
    return snooze;
  }

  public void setSnooze(boolean snooze) {
    this.snooze = snooze;
    DBconnector.updateSnooze(this.snooze.toString());
  }

}

and simply :

<p:inputSwitch id="snoozeSwitch" value="#{dashBController.snooze}"/>

edited Aug 14 '15 at 13:22

answered Aug 14 '15 at 04:04

ForguesR

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It seems that PrimeFaces can not handle Objects of type Boolean instead of the primitive data type boolean. Is that possible? Getting some errors I can not get rid of ... – Marcel Aug 14 '15 at 08:56
Quite possible. I edited my answer : now the getter and the setter use the primitive `boolean`. Can you give it a try? – ForguesR Aug 14 '15 at 13:25
If I use the primitive instead, I can not check if snooze == null. So I have changed it like: `public boolean isSnooze() { if (snooze == null) { snooze = getSnoozeStatus(); //return Boolean or Downcast } return snooze.booleanValue(); }` – Marcel Aug 14 '15 at 14:10
In my answer `snooze` is still a `Boolean` : I only changed the return type of the getter and the parameter type of the setter. – ForguesR Aug 14 '15 at 14:16
I've implemented and tested your suggestion. But if I toggle the switch, it does not run my setSnooze() method. – Marcel Aug 15 '15 at 20:17

PrimeFaces switch with initial value

1 Answers1