Help With Core Data

jrad11 · 02-06-2012, 12:01 PM

Hello All,

I am receiving data from a REST service that I would like to save in Core Data for my iOS app. I get this data from multiple calls to the REST service, so I would like to assemble this data completely in memory before saving the data to the data store.

My question is about NSFetchRequest. It seems like this object searches the persistent storage for a child object I am looking for. Is this true? If so, what is the best way for my to find my child object in memory before it has been saved to persistent storage?

Thanks,
JR

sneaky · 02-06-2012, 01:34 PM

When you fetch you are querying a context - assuming that you are only using one single nsmanagedcontext you will be querying memory as well as disk.

You don't actually want to do too much saving just to memory, will get slow after a while. If you are looping make sure to commit every 50 new nsmanagedobjects or so.