On Fri, Oct 25, 2013 at 6:03 PM, Stefano Iacovella <
[email protected]> wrote:
>
> 2013/10/25 Andrea Aime <[email protected]>
>
>> It invalidates GeoServer one. The one managed by the stores is private,
>> no way to reach it and
>> drop it. Different stores do it in a different way, some do not have it
>> at all, but for JDBC ones
>> it is crucial, because of the high cost in figuring out the feature type
>> structure (many queries
>> to the DBMS are normally required)
>>
>
> So when I am removing the featuretype the store caches information about
> its structure just in case I would create it again in the near future, is
> it right?
>
Going to talk about the JDBC stores (spatial databases), since any store
handles this in a different way (as said, some do not
cache the structure at all).
The JDBC store caches the feature type the first time the structure of a
feature type is needed. There is no notion of "near feature"
in this case, the cached information is stored permanently
> And is it this behaviour not ovveridable by the calling method?
>
No. But even if there was a specific way for the JDBC stores, there is
another issue: GeoServer has no idea what
kind of store it's talking to.
So if we wanted to add a method, we would have to add it to the
DataAccess/DataStore interfaces, so that GeoServer
can drop eventual caches without having to know what kind of data backend
it's talking to.
Which, in turn, would require a proposal at the GeoTools level, and some
work in each and every store implemented
so far.
So possible, and could be useful too, but not exactly a couple of hours hack
Cheers
Andrea
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Ing. Andrea Aime
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