i thought not reachable means they are not in any default model slot...dunno

-igor

On Wed, May 6, 2009 at 1:17 PM, Johan Compagner <jcompag...@gmail.com> wrote:
> Doesnt he say that the models arew really not reachable by the
> components? So how would that field scanning then work? If it are
> fields on components the currently the thing to do is simpel just make
> sure that those fields are detached in the detach method of the
> component that has those fields
>
> On 06/05/2009, Jeremy Thomerson <jer...@wickettraining.com> wrote:
>> In 1.5 Igor is planning on doing this.  He's planning on making it
>> such that any IModel that your component holds as a field is
>> auto-detached.
>>
>> --
>> Jeremy Thomerson
>> http://www.wickettraining.com
>>
>>
>>
>>
>> 2009/5/6 Uwe Schäfer <schae...@thomas-daily.de>:
>>> hi
>>>
>>> we have a problem here, which we think might be a common one, so i´d like
>>> to
>>> discuss.
>>>
>>> from time to time we create models (mostly LDMs) that are not actually
>>> reachable by components. (yes, you can argue that this is stupid, but it
>>> happens where 1:1 mapping between component and model is not easy to
>>> apply)
>>>
>>> the problem arising from there is of course that wicket does not know
>>> about
>>> this IModel and so wont detach() it.
>>>
>>> yes, we could use Component.detach() as a hook to detach that LDM as well,
>>> but i tend to forget that.
>>>
>>> if there were a central place to register IDetachables, life would be
>>> simpler. from what i´ve seen, detach is not guaranteed to be called only
>>> once, so we could do:
>>>
>>> MyAbstractReadOnlyModel(){
>>>  MyRequestCycle.get().registerForDetachment(this);}
>>>
>>> and to
>>>
>>> MyRequestCycle.detach(){
>>>  super.detach();
>>>  for(IDetachable d : this.setOfRegisteredIDetachables){
>>>  d.detach();
>>>  }
>>>  this.registeredIDetachables.clear();
>>>  ...
>>>
>>> as well as
>>>
>>> MyRequestCycle.registerForDetachment(IDetachable d);
>>>
>>> wouldn´t it make sense to have something like this in the framework?
>>> one drawback is that direct implementations of IModel could not be
>>> covered,
>>> but still it would be more convenient to just register them somewhere
>>> instead of overwriting the detach methods of their containers if we want
>>> them detached.
>>>
>>> any thoughts, apart from the ones that claim this not to be a valid use of
>>> IModel? :)
>>>
>>> cu uwe
>>>
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