Matt Warren discusses ObjectSpaces and ORM in general

Check out this post from 'The Wayward WebLog'... it is a good discussion starter for anyone who wants to chat about ORM (object-relational mapping) ...

ObjectSpaces: The Devil is in the Demand

I’ve coined the phrase ‘object span’ to describe the ability to front load a graph-based query with enough information to cherry pick at the best bits of data so data retrieval is optimized to the application. I’ve even written about that here . Yet I’ve never felt one hundred percent right about any of it. Not the span exactly, but the whole concept of systems designed to retrieve segments of a data graph into the client space, with interceptors (or swizzlers) that fault in more segments upon demand. I’ve come to the conclusion that demand loading is just a terribly bad idea.