Prado\TComponent::attachClassBehavior PHP Method

    public static function attachClassBehavior($name, $behavior, $class = null, $priority = null)
    {
        if (!$class && function_exists('get_called_class')) {
            $class = get_called_class();
        }
        if (!$class) {
            throw new TInvalidOperationException('component_no_class_provided_nor_late_binding');
        }
        if (!is_string($name)) {
            $name = get_class($name);
        }
        $class = strtolower($class);
        if ($class === 'tcomponent') {
            throw new TInvalidOperationException('component_no_tcomponent_class_behaviors');
        }
        if (empty(self::$_um[$class])) {
            self::$_um[$class] = array();
        }
        if (isset(self::$_um[$class][$name])) {
            throw new TInvalidOperationException('component_class_behavior_defined', $class, $name);
        }
        $param = new TClassBehaviorEventParameter($class, $name, $behavior, $priority);
        self::$_um[$class] = array($name => $param) + self::$_um[$class];
        $behaviorObject = is_string($behavior) ? new $behavior() : $behavior;
        return $behaviorObject->raiseEvent('fxAttachClassBehavior', null, $param);
    }