public function createProxyDefinition($className)
{
$classMetadata = $this->metadataFactory->getMetadataFor($className);
$reflectionFields = $classMetadata->getReflectionFields();
$reflectionId = $reflectionFields[$classMetadata->getRidPropertyName()];
return new ProxyDefinition(ClassUtils::generateProxyClassName($className, $this->proxyNamespace), $classMetadata->getIdentifierFieldNames(), $classMetadata->getReflectionFields(), $this->createInitializer($classMetadata, $this->uow->getHydrator(), $reflectionId), $this->createCloner($classMetadata, $this->uow->getHydrator(), $reflectionId));
}