private void ThrownWhenLifestyleIsNotSupported()
{
// Because the user registered an IEnumerable<TService>, this collection can be dynamic in nature,
// and the number of elements could change on each enumeration. It's impossible to detect if a
// returned element is supposed to be a new element and should get its own new decorator, or if
// it is supposed to be an existing element, for which an already cached decorator can be used.
// In fact we can't really cache elements as Singleton, but since this was already supported in
// the past, we don't want to introduce (yet another) breaking change.
if (this.Lifestyle != Lifestyle.Transient && this.Lifestyle != Lifestyle.Singleton)
{
throw new NotSupportedException(
StringResources.CanNotDecorateContainerUncontrolledCollectionWithThisLifestyle(
this.DecoratorTypeDefinition, this.Lifestyle, this.registeredServiceType));
}
}