public function validate(Validator $validator = null)
    {
        if (null === $validator) {
            $validator = new Validator(new ClassMetadataFactory(new StaticMethodLoader()), new ConstraintValidatorFactory(), new DefaultTranslator());
        }

        $failureMap = new ConstraintViolationList();

        if (!$this->alreadyInValidation) {
            $this->alreadyInValidation = true;
            $retval = null;


            $retval = $validator->validate($this);
            if (count($retval) > 0) {
                $failureMap->addAll($retval);
            }

            if (null !== $this->collAttributeAttributeTypes) {
                foreach ($this->collAttributeAttributeTypes as $referrerFK) {
                    if (method_exists($referrerFK, 'validate')) {
                        if (!$referrerFK->validate($validator)) {
                            $failureMap->addAll($referrerFK->getValidationFailures());
                        }
                    }
                }
            }
            if (null !== $this->collAttributeTypeI18ns) {
                foreach ($this->collAttributeTypeI18ns as $referrerFK) {
                    if (method_exists($referrerFK, 'validate')) {
                        if (!$referrerFK->validate($validator)) {
                            $failureMap->addAll($referrerFK->getValidationFailures());
                        }
                    }
                }
            }

            $this->alreadyInValidation = false;
        }

        $this->validationFailures = $failureMap;

        return (Boolean) (!(count($this->validationFailures) > 0));

    }