How to get the Handle of any UI component without binding?

How to get the Handle of any UI component without binding?


    public String callAction() {

        UIComponent component = findComponentInRoot("it1"); //it1 is the Id of the UI
        System.out.println(component.getId());
        component.setRendered(false);
        return null;
    }

    public static UIComponent findComponentInRoot(String id) {
        UIComponent component = null;

        FacesContext facesContext = FacesContext.getCurrentInstance();
        if (facesContext != null) {
          UIComponent root = facesContext.getViewRoot();
          component = findComponent(root, id);
        }

        return component;
    }
    public static UIComponent findComponent(UIComponent base, String id) {
        if (id.equals(base.getId()))
          return base;
     
        UIComponent kid = null;
        UIComponent result = null;
        Iterator kids = base.getFacetsAndChildren();
        while (kids.hasNext() && (result == null)) {
          kid = (UIComponent) kids.next();
          if (id.equals(kid.getId())) {
            result = kid;
            break;
          }
          result = findComponent(kid, id);
          if (result != null) {
            break;
          }
        }
        return result;
    }

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    public String callJS() {
               FacesContext facesContext = FacesContext.getCurrentInstance();

        org.apache.myfaces.trinidad.render.ExtendedRenderKitService service =
            org.apache.myfaces.trinidad.util.Service.getRenderKitService(facesContext, ExtendedRenderKitService.class);

        service.addScript(facesContext, "alert('Hi');window.close();");
        return null;
    }

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When the user hovers the input text, the field Name gets focus.