Re: Core Data Performance
Re: Core Data Performance
- Subject: Re: Core Data Performance
- From: "I. Savant" <email@hidden>
- Date: Tue, 19 Feb 2008 20:00:34 -0500
"Executing a fetch request requires a round trip to the persistent
store.... you can avoid the overhead of executing the fetch request
by searching the managed object context..."
Something like that, to be honest I can't find it any where in the
documentation and I only posted because I started to think I might
have been imagining things.
I'm having trouble understanding what you're asking too, but ...
are you perhaps referring to in-memory array filtering (with
predicates)? See NSArray's -filteredArrayUsingPredicate:
If you already have a fetched set of managed objects (assuming you
understand all the implications regarding faulting), you can filter
them in memory using this method.
--
I.S.
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