EO Programming Guide ?s
EO Programming Guide ?s
- Subject: EO Programming Guide ?s
- From: Jeff Schmitz <email@hidden>
- Date: Sun, 6 Apr 2008 09:54:49 -0500
Hello, I've been reading the Webobjects Enterprise Objects Programming Guide and had a couple quick questions about it. First, are editing contexts usually created per session? It shows a couple of pictures indicating this, but it never really comes out and says (at least that I found) when new editing contexts should be created. An then I see quotes such as:
When multiple users access the same data source by sharing an application instance, they most often share data caches. This means that one user’s data query may not actually invoke a fetch from the data source if the data requested has already been fetched by another user and so exists in the cache.
Which would indicate that all users in a single application may share an editing context. Or is the "cache" something different than the editing context (which to me itself represents a cached copy of some of the database data)?
Anyway, if I had a clearer picture of the usual architecture regarding editing contexts it would really help as I read the rest of the doc.
Thanks, Jeff
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