private function completeMappingTypeValidation($className, ClassMetadataInfo $class)
    {
        foreach ($class->fieldMappings as $fieldName => $mapping) {
            if (Type::hasType($mapping['type'])) {
                continue;
            }

            // Support type as a mapped class?
            if (!$this->hasMetadataFor($mapping['type']) && !$this->getMetadataFor($mapping['type'])) {
                throw MappingException::fieldTypeNotFound($className, $fieldName, $mapping['type']);
            }

            // Mapped classes must have binding node type XML_ELEMENT
            if ($mapping['node'] !== ClassMetadataInfo::XML_ELEMENT) {
                throw MappingException::customTypeWithoutNodeElement($className, $fieldName);
            }
        }
    }