public static function getInstance()
    {
        if (is_null(self::$_instance)) {
            $c = self::getComponentClass();
            if ($c) {
                self::$_instance = new self(array('componentClass' => $c));
            } else {
                self::$_instance = false;
            }
        }
        return self::$_instance;
    }
public static function getInstance()
    {
        if (is_null(self::$_instance)) {
            $c = self::getComponentClass();
            if ($c) {
                self::$_instance = new self(array('componentClass' => $c));
            } else {
                self::$_instance = false;
            }
        }
        return self::$_instance;
    }
public static function getInstance ( ) { if ( is_null ( self :: $ _instance ) ) { $ c = self :: getComponentClass ( ) ; if ( $ c ) { self :: $ _instance = new self ( array ( 'componentClass' => $ c ) ) ; } else { self :: $ _instance = false ; } } return self :: $ _instance ; }
Returns the root component data instance

@return Kwf_Component_Data_Root
Returns the root component data instance