code: public void setPicker(final ICmdUIObject _uiObject)
      {
          if (_uiObject instanceof UIPicker) {
              this.picker = (UIPicker) _uiObject;
          } else if (_uiObject == null) {
              this.picker = null;
          }
      }
docs: Setter method for instance variable {@link #picker}.
  
  @param _uiObject value for instance variable {@link #picker}