April 2015
Intermediate to advanced
556 pages
17h 47m
English
book
Cocoa Programming for OS X: The Big Nerd Ranch Guide
by Aaron Hillegass, Adam Preble, Nate Chandler
Content preview from Cocoa Programming for OS X: The Big Nerd Ranch Guide
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How Core Data Works
Although you have written no code, many objects have been created to make this work. Figure 13.19 is a diagram of some of them.
Figure 13.19 Objects in CarLot created by Core Data
The NSPersistentDocument reads in the model you created and uses it to create an instance of NSManagedObjectModel. In this case, the managed object model has one NSEntityDescription (which describes the Car entity). That entity description has several instances of NSAttributeDescription.
Once it has the model, the persistent document creates an instance of NSPersistentStoreCoordinator and an instance of NSManagedObjectContext ...
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O’Reilly covers everything we've got, with content to help us build a world-class technology community, upgrade the capabilities and competencies of our teams, and improve overall team performance as well as their engagement.Julian F.
I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
I’ve been on the O’Reilly platform for more than eight years. I use a couple of learning platforms, but I'm on O'Reilly more than anybody else. When you're there, you start learning. I'm never disappointed.Amir M.
I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.