[geotk] NullPointerException with WFSFeatureStore
johann sorel
johann.sorel at geomatys.com
Wed Dec 10 05:59:22 PST 2014
That's right, FeatureCollection is not defined in Geoapi, it is defined
in GeotoolKit only.
On 10/12/2014 14:57, Emmanuel Blondel wrote:
> Thanks, but you confirm that they are only convenient methods, and
> that there is no more "Featurecollection" (or similar) interface at
> GeoAPI level, right?
>
> 2014-12-10 13:33 GMT+01:00 johann sorel <johann.sorel at geomatys.com
> <mailto:johann.sorel at geomatys.com>>:
>
> When you have a FeatureStore you can use the method createSession().
>
> The Session object has many more convenient methods including
> FeatureCollections.
>
> Johann Sorel
>
>
>
> On 10/12/2014 13:27, Emmanuel Blondel wrote:
>> Thanks Martin , it would be great yes. Let me know if something
>> new appears in snapshot, i will further test with a geoserver WFS
>> instance.
>>
>> Related to the use of WFS geotk client, i would have a question
>> about the way how data can be retrieved:
>> - I see there is a FeatureReader, that acts as iterator if i'm
>> not wrong.
>> - However, nothing to get a feature collection object; looking to
>> GeoAPI in parallel, i've realized that the GeoAPI is not handling
>> anymore a FeatureCollection interface, which was available in
>> previous (old) versions of GeoAPI. Apparently i'm very late :-/ !.
>> I thought we had in GeoAPI a single interface for representing
>> the data retrieved for a WFS featureType (what we are actually
>> looking for in our project), but it seems it belongs to the past,
>> and the highest representation is the Feature.
>> Do you confirm that?
>>
>> Thanks again
>> Emmanuel
>>
>> Le 10/12/2014 09:11, Martin Desruisseaux a écrit :
>>> Le 10/12/14 17:05,emmanuel.blondel1 at gmail.com <mailto:emmanuel.blondel1 at gmail.com> a écrit :
>>>> Ok for a snapshot, i will argue here on the fact we should use first a snapshot until M3 is available, it shouldn't be a problem.
>>> Thanks
>>>
>>>> Some questions:
>>>> - Is it reasonable to make this timeout hardcoded in geotk? Isn't there a way to specify this timeout threshold as client param..?
>>> Yes it should be a parameter. I'm not familiar with the way
>>> WFSFeatureStore uses optional parameters. If I find an obvious place
>>> where to put it, I will do. Otherwise a static constant and a "TODO"
>>> note gives an opportunity to revisit this question by someone more
>>> familiar. There is a danger that a "TODO" note is forgot for a long
>>> time, but it should be no longer than until the code is ported to SIS
>>> (since we try to resolve pending issue in this process).
>>>
>>>> - if it is only a time 'warning', ie not an exception, why should i have a null getcapabilities? I would expect a result anyway.
>>> I agree, this is why I proposed alternatives in my previous email. I
>>> would prefer an exception to be thrown, and Johann seems to agree. Would
>>> it be okay for you?
>>>
>>>> - in case it's'considered as failure, i should have a timeout exception (but it supposes that i can specify the timeout, otherwise it would be very restrictive and will not work for large GetCapabilities docs)
>>> Yes I agree for the TimeoutException. I will try to find a place for the
>>> timeout parameter.
>>>
>>> Martin
>>>
>>
>>
>>
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