Non-blocking ORM issues

Posted by Nikolay Fominyh on Programmers See other posts from Programmers or by Nikolay Fominyh
Published on 2012-06-21T20:45:13Z Indexed on 2012/06/22 9:22 UTC
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python

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orm

Once I had question on SO, and found that there are no non-blocking ORMs for my favorite framework. I mean ORM with callback support for asynchronous retrieval. The ORM would be supplied with a callback or some such to "activate" when data has been received. Otherwise ORM needs to be split of in a separate thread to guarantee UI responsiveness.

I want to create one, but I have some questions that blocking me from starting development:

What issues we can meet when developing ORM?
Does word "non-blocking" before word "ORM" will dramatically increase complexity of ORM?
Why there are not much non-blocking ORMs around?

Update: It looks, that I have to improve my question. We have solutions that already allows us to receive data in non-blocking way. And I believe that not all companies that use such solutions - using raw SQL. We want to create more generic solution, that we can reuse in future projects. What difficulties we can meet?

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