Core Data persistent object located on Amazon S3?

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+1 Q:

Core Data persistent object located on Amazon S3?

I am curious if my persistent object of Core Data can be stored and retrieved using Amazon S3.

I think it is a perfect combination to put your application on the cloud.

Or Amazon has other services?

Has anyone had any success stories to share?

Edited:

I know that there is no direct support of Core Data for S3, but there is ASIS3Request available to save and load any object on S3.

My solution: in the app delegate, I will modify the persistentStoreCoordinator to save on Amazon S3.

+1 A:

Though there's no direct Core Data support for Amazon S3 as a store type, Core Data allows Custom Store Types. This fact is referenced in the iPhone Core Data docs, so I assume it's available on the iPhone platform.

Joshua Nozzi 2010-02-16 01:43:27

hi, I edited the question.

sfa 2010-02-16 12:57:02

I should've been more specific. Yes, you'd create a custom store type that fetches and saves objects to S3 via some mechanism. ASIS3Request and friends does look promising as such a mechanism.

Joshua Nozzi 2010-02-16 13:01:23

+2 A:

Sounds like a terrible idea to me. The performance would be abysmal since you are taking something that is inherently designed to be a local cache and moving it up into the cloud.

You are far better off having a local cache and then periodically storing a copy of the file up in the cloud.

What is your goal behind storing the data on S3?

Marcus S. Zarra 2010-02-16 17:35:10

Ohh thank you very much Marcus! You have cleared my doubt. But how do you appoach on an application that needs to store both data files along with a database in the cloud? An example: A real estate company that offers the users the ability to upload both images, videos and information of the client's house?

sfa 2010-02-16 18:17:50

Pretty much the same solution. I would sync the data up into the cloud periodically and treat the copy that is on the phone as a cache.

Marcus S. Zarra 2010-02-16 20:34:40

Hi Marcus, is it the normal way of doing a social network application on the iphone? I guess it'll be too complicated :-s

sfa 2010-02-17 11:13:55

No, a social network application normally hits a REST server and caches data locally where it makes sense.

Marcus S. Zarra 2010-02-17 15:33:50

Thank Marcus!!!

sfa 2010-02-17 17:03:26

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Core Data persistent object located on Amazon S3?

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