June 2016
Intermediate to advanced
214 pages
5h 40m
English
Content preview from Core Data in SwiftBecome an O’Reilly member and get unlimited access to this title plus top books and audiobooks from O’Reilly and nearly 200 top publishers, thousands of courses curated by job role, 150+ live events each month,
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Things to Consider When Using the Bulk Change APIs
Just because we have these APIs available to us doesn’t mean that we should be using them without serious consideration. Several factors impact our decision to use these APIs.
How Fast Is “Faster”?
Doing massive changes to the underlying persistent store will never be instantaneous. No matter what type of database we’re working with, this is going to take time. However, compared to the way that we’d “normally” do this type of work with Core Data, these APIs are significantly faster.
Testing against massive persistent stores have shown at least an order of magnitude speed improvement over the traditional way of doing bulk changes. If an operation took nine seconds previously via loading objects ...
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