It seems that when the image (or data in general) is larger than 1MB, it's stored in a hidden folder in the same place as your main database. For example, if the application is called MyLionApp and its persistent store is located in the ~/Library/MyLionApp folder, the external files would be stored in ~/Library/MyLionApp/.MyLionApp_SUPPORT/_EXTERNAL_DATA/.
The documentation is indeed very sparse, so I've investigated a bit myself and posted the results here : http://bluecrowbar.com/blog/2011/08/coredata-external.html Steven On Aug 3, 2011, at 10:29 PM, Frédéric Testuz wrote: > Hello, > > I looked at the Core Data release notes of Lion, I also looked the "What's > new in Core Data on Mac OS X" video of the WWDC 2011. And I have a question > about the new allowsExternalBinaryDataStorage option for binary attribute. > > I did some test with an attribute for images. I can see that when I put an > big image in the data, the file did not grow. > > But where the external file/data is put? If the file is moved or copied, what > about theses external data? I tried to find info, but the documentation is > very sparse. > > Frédéric_______________________________________________ > > Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) > > Please do not post admin requests or moderator comments to the list. > Contact the moderators at cocoa-dev-admins(at)lists.apple.com > > Help/Unsubscribe/Update your Subscription: > http://lists.apple.com/mailman/options/cocoa-dev/steven%40bluecrowbar.com > > This email sent to ste...@bluecrowbar.com _______________________________________________ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
