Re: Managing EOF caching
Re: Managing EOF caching
- Subject: Re: Managing EOF caching
- From: Ken Anderson <email@hidden>
- Date: Sun, 22 Jan 2006 16:53:22 -0500
As I said in my previous email, snapshots have an NSTimestamp for
when they were retrieved. If, when the EC gets a snapshot for an EO
that is being created in that EC, the snapshot NSTimestamp is older
than the lag, the snapshot will be refetched.
On Jan 22, 2006, at 2:23 PM, email@hidden wrote:
Hello Mike;
That's a great explanation and is fabulous stuff to understand
properly –– thanks. Have you any idea how the EC's "fetch
timestamp lag" fits into this story, or is as simple as the
snapshots being structured in memory in such a way as to provide
some sort of modified-timestamp indexing?
cheers.
As of 5.2, the way it works is: The snapshots in EODatabase have a
reference count. Each editing context that fetches ...
___
Andrew Lindesay
www.lindesay.co.nz
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