Support for object lazy initialization

[ItsVeryWindy]

The issue I'm trying to deal with is that I'm trying to build a JObject and execute queries against it at the same time. But as I don't know what part of the object the query is going to access I don't know which bits need to be built first.

Ideally I'd be able to hook into when properties are being accessed so I can lazily initialize them.

In javascript I can use Proxy for this to intercept property access.

I think this could be achieved relatively easily by adding overloads on JObject and JArray that allows for custom dictionary and list implementations respectively.

[mikhail-barg]

Hi @ItsVeryWindy, sorry for a late answer.

I'm not sure if it is possible to implement what you are looking for. Probably the most straightforward way would be to just fork my code and change JObject and JArray implementations according to your needs.

[JobaDiniz]

@ItsVeryWindy have you tried to implement this?

[ItsVeryWindy]

I gave it a go. What I was working on never really got passed the PoC stage and I never built a package for it or anything like that. This was just to add the necessary hooks to allow it to be extended. I had two concepts I was playing around with, one was to implement behaviour that would re-run jsonata queries when the underlying data used by that query had changed. The other involved having like a class structure I that would wrap around our json data that would provide methods and other computed properties.