On Aug 11, 2011, at 8/1112:22 PM , John Huss wrote: > Some specifics I'd like to know: > 1) is cayenne single threaded like EOF?
Most things happen in the "active" thread, but cayenne dispatches object update notifications to peer contexts in a separate thread. But the actual commit, object modifications, etc. all happen in the same thread as the rest of your code, so. I'm not/wasn't an EOF user, so I don't know if that's similar to EOF. > 2) does it have prototypes? Somebody with EOF background will need to answer that. > 3) are there DB specific plugins like EOF? Well, there are DB-specific SQL adapters so you get the right SQL for your database. SQLTemplate is a way to externalize raw SQL in your application (for, eg, queries where performance is critical) and that also supports DB-specific SQL implementations for your query so your code can be DB-agnostic. Again, not sure if that's similar to what you're asking about in EOF. > 4) can you use a custom template for your entities? > Yes. Robert > Thanks, > John > > On Aug 11, 2011, at 10:53 AM, Joseph Senecal <[email protected]> wrote: > >> The big one is that WebObjects includes both an ORM and a web interface that >> understands ORM objects. You can use WebObjects by itself to develop a Web >> App that talks to a database where Cayenne is just the ORM layer. So >> comparing EOF (WebObjects ORM layer) to Cayenne, here's what I've noticed so >> far: >> >> EOF: >> EOF uses it's own collection classes (because it started as Objective C). >> This sounds like a bad thing, but having it's own collection classes allows >> it to do things like provide a common interface to both NSDictionaries and >> Enterprise Objects. >> Project Wonder: adds functionality and connivence methods >> ERXKeys: A Project Wonder wrapper for a typed key that be used to fetch the >> value from an Enterprise object, Map, or array. It can generate expression >> objects and sort order objects with very clean compact code. This is the >> piece I'm going to miss most transitioning from webObjects. >> >> Cayenne: >> Default settings are an order of magnitude faster than EOF at bulk loading. >> Same Expression can be used to fetch either objects or Maps >> Built in support for handling LARGE select sets >> Built in standard SQL like DB independent query language >> Built in support for caching query results >> >> I'm sure I'm missing a lot of features, but these are the differences I can >> think off of the top of my head. >> >> Joe >> >> On Aug 11, 2011, at 8:35 AM, John Huss wrote: >> >>> So what are the primary differences between WebObjects and Cayenne? >>> >>
