Timo,
You are the man! Thanks!
long userId = MySession.get().getUser().getId()
Of course!
Cheers, Graeme.
Timo Rantalaiho wrote:
>
> On Thu, 06 Nov 2008, Graeme Knight wrote:
>> perform a task of getting data from a database. Each model is dependent
>> on a
>> couple of pieces of information (1) an identifier about the current user
>> (2)
>> a primary key of a parent data object. I'm trying to work out the
>> mechanics
>
> If "the current user" means what it sounds like, I would
> probably have it stored in the Wicket Session and get it
> each time like this
>
> long userId = MySession.get().getUser().getId()
>
> (Or you can make your user available in a custom ThreadLocal
> which is populated and depopulated in a custom RequestCycle.)
>
>> Now my example above is not too bad resource wize - you may only be
>> talking
>> about a couple of Longs being serialized ten times (not a massive hit),
>> but
>> what about if the objects in my LoadableDetachableModel are fairly big?
>
> The point of LoadableDetachableModel is to store in it only
> so little data that it doesn't matter, but load the big data
> again in load() on each request that needs it. The big data
> is referenced directly only during the request, so it does
> not get serialised.
>
>> Is there a way of destructing and reconstructing the model automatically
>> so
>> I don't need to worry about this serialization of the model private data?
>
> The only automatic part is that if the model is "the default
> model" of a rendered component, its detach() will be called
> automatically at the end of the request processing. The
> wrapping models that come with Wicket also detach their
> wrapped models in their own detach() (and any custom model
> should in general do the same).
>
> Best wishes,
> Timo
>
> --
> Timo Rantalaiho
> Reaktor Innovations Oy <URL: http://www.ri.fi/ >
>
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