Issue with setting an Action Listener for a Command Button

Question

Hi all,
I'm trying to set an action listener for a CoreCommanButton in a backing bean. Here's my code:
     CoreCommandButton editBtn = new CoreCommandButton();
          MethodBinding mb = FacesContext.getCurrentInstance().getApplication().createMethodBinding("#{backBean.doButtonAct}",null);
          editBtn.setActionListener(mb);
//Action listener method
     public void doButtonAct(ActionEvent actionEvent)
I keep getting a javax.faces.el.MethodNotFoundException error. However when I remove the ActionEvent parameter in doButtonAct(), I get a wrong number of arguments error.
So i'm guessing there is something wrong with the parameters i accept in my action listener method. what can be causing this issue?
Cheers.

Answer 1

I figured this out.
Since doButtonAct() requires an ActionEvent object as a parameter, i needed to define the parameter type when I create the method binding.
Solution:
     Class argsString[] = new Class[] { ActionEvent.class };
          MethodBinding mb = FacesContext.getCurrentInstance().getApplication().createMethodBinding("#{backBean.doButtonAct}",argsString);