Ajax for valueChangeListener

Question

I\'m using the p:ajax listener to handle value change events (because valueChangeListener is launched on form submit):

Answer 1

The ValueChangeListener should work this way:

The view:

The bean:

public void valueChangeListener(ValueChangeEvent e) {
  System.out.println("valueChangeListener invoked:" 
                      + " OLD: " + e.getOldValue() 
                      + " NEW: " + e.getNewValue());
}

The above code will print if I change the text field from "hello" to "world":

valueChangeListener invoked: OLD: hello NEW: world