Re: Practical EditingContext Design Question

Arturo Perez <[email protected]> a écrit sur 16/02/2006 16:32:23 :

> [email protected] wrote:
> >
> >
> > Is it a good solution ?
> > In the book, different king of EditingContext are explained but wich 
> > one do we need to use for the readers ? DefaultShareEditingContext ? 
> > Other ?
> >
> > Many thank's for any advice,
> >
> > Jérémy
> That's what the DefaultSharedEditingContext is for (many readers, few 
> writers) but most people have trouble implementing it properly.  That 
may or
> may not be because it's buggy.
Ok, I will try. Just a question :
- "How do WebObjects populate the changes made in all the 
CooperativeEditingContext (used by the contributors) in the 
DefaultSharedEditingContext (used by the readers) ?"

> 
> What you can do instead is have an application-level editing context and 

> set your session's defaultEditingContext to that.  Then when a writer 
comes
> in you don't set it.
> 
> Of course, you'll have to make sure that you do multithreading and 
> locking properly in either case.
> 
> Alternatively, you can have one app for readers and another for 
> writers.  Depending on your requirements you may run into stale data 
issues.
Yes, but it hard to :
- maintain two differents applications using the same datas (even if it's 
just reading)
- sometimes the readers become contributors in the same session

> 
> -arturo
>

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