Core Data Synchronization with Ensembles (BETA)
Core Data Synchronization with Ensembles (BETA)
About the Book
Cloud sync is a feature that every iOS app is expected to have, and yet is notoriously difficult to implement in a robust way. It usually demands a small team of iOS and web developers working together, not to mention the deep pockets needed to pay for cloud services and storage.
The open source Ensembles framework has changed that. You can now build sync into an iOS app using Core Data in a matter of hours, and take your pick of cloud services, including free services like Dropbox and iCloud.
This book introduces you to the goals of the project, and how to install and integrate it in your app. It also covers advanced topics like conflict resolution, and the pitfalls to beware of when your app supports sync.
About the Author
Table of Contents
- Acknowledgments
- Preface
-
Introduction
- What is this Book About?
- What Will Not be Covered?
-
Introducing Ensembles
- What is Ensembles?
- Design Goals
- How Does it Work?
- Ensembles versus The Rest
-
Installing Ensembles
- Downloading Ensembles
- Integrating Ensembles into an Xcode Project
- Idiomatic App
- Deploying Ensembles Server
-
Quick Start Guide
- E.L.M.
- Global Identifiers
- Where Next?
-
The Ensemble
- What is an ‘Ensemble’?
- The CDEPersistentStoreEnsemble Class
- Delegate Methods
- Notifications
-
Leeching and Deleeching
- Leeching
- Initial Data Migration
- Deleeching
-
Merging
- What Happens During a Merge?
- Triggering Merges
- When to Trigger Merges
- Updating Contexts
- Delegate Methods
- Merge Errors
-
Saving
- Monitoring Saves
- Committing Changes
- Approaches to Saving
- Termination
- Delegating Saving
-
Models
- Loading a Model
- Designing a Model
- Migrations
- Object Identity
- Working with Data
- Batched Traversals (Ensembles 2 only)
- Repairing Conflicts
-
Testing and Debugging
- Unit Tests
-
Backends
- iCloud Drive
- CloudKit
- Dropbox Core API
- WebDAV
- Zip Compression
- Encryption
- Ensembles Server (Node.js, S3)
-
Adding a Custom Backend
- CDECloudFileSystem
- Notes
The Leanpub 60 Day 100% Happiness Guarantee
Within 60 days of purchase you can get a 100% refund on any Leanpub purchase, in two clicks.
Now, this is technically risky for us, since you'll have the book or course files either way. But we're so confident in our products and services, and in our authors and readers, that we're happy to offer a full money back guarantee for everything we sell.
You can only find out how good something is by trying it, and because of our 100% money back guarantee there's literally no risk to do so!
So, there's no reason not to click the Add to Cart button, is there?
See full terms...
Earn $8 on a $10 Purchase, and $16 on a $20 Purchase
We pay 80% royalties on purchases of $7.99 or more, and 80% royalties minus a 50 cent flat fee on purchases between $0.99 and $7.98. You earn $8 on a $10 sale, and $16 on a $20 sale. So, if we sell 5000 non-refunded copies of your book for $20, you'll earn $80,000.
(Yes, some authors have already earned much more than that on Leanpub.)
In fact, authors have earnedover $13 millionwriting, publishing and selling on Leanpub.
Learn more about writing on Leanpub
Free Updates. DRM Free.
If you buy a Leanpub book, you get free updates for as long as the author updates the book! Many authors use Leanpub to publish their books in-progress, while they are writing them. All readers get free updates, regardless of when they bought the book or how much they paid (including free).
Most Leanpub books are available in PDF (for computers) and EPUB (for phones, tablets and Kindle). The formats that a book includes are shown at the top right corner of this page.
Finally, Leanpub books don't have any DRM copy-protection nonsense, so you can easily read them on any supported device.
Learn more about Leanpub's ebook formats and where to read them
