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Subject: Re: Sofa-unaware AEs that create new views in an AAE
From: Richard Eckart de Castilho <rec@apache.org>
In-Reply-To: <534FD316.6080307@uni-wuerzburg.de>
Date: Thu, 17 Apr 2014 15:18:19 +0200
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References: <534FC366.70209@uni-wuerzburg.de>
 <1ED08ACD-BB28-489B-9A83-8375E089C071@apache.org>
 <534FD316.6080307@uni-wuerzburg.de>
To: user@uima.apache.org

Have a look at this thread. I believe to have discussed the same general
issue with Luca there:

http://markmail.org/thread/dgwku65srpvqdvdr

At least, maybe that helps to better pinpoint the problem.

-- Richard

On 17.04.2014, at 15:11, Peter Kl=FCgl <pkluegl@uni-wuerzburg.de> wrote:

> Am 17.04.2014 15:02, schrieb Richard Eckart de Castilho:
>> On 17.04.2014, at 14:04, Peter Kl=FCgl <pkluegl@uni-wuerzburg.de> =
wrote:
>>=20
>>> Hi,
>>>=20
>>> as I understand the implementation, an AE is sofa aware if it =
specifies
>>> input or output views in its capabilities. Let's say it only =
specifies
>>> an output view, so it's sofa aware. If it is part of an AAE with =
sofa
>>> mapping (one AAE sofa mapped to the default input view of the AE), =
then
>>> it get passed the base CAS independently of the sofa mapping. =
Shouldn't
>>> it get the view mapped in the AAE?
>> It should be able to get the mapped views by the mapped names instead
>> of by whatever original name they have.
>>=20
>=20
> What do you mean exactly? It is maybe possible, or it should be
> possible? Investigating the metadata in the process() method?
>=20
>=20
>> I guess you ask whether it should get the defaultView because the
>> input view is unmapped?
>=20
>=20
> It doesn't get the mapped view, but the base view, which is the
> _InitialView if the AAE uses it. If the AAE uses some arbitrary input
> view, it gets an empty sofa.
>=20
>=20
>>=20
>>> I have a simple AE that should just get the mapped sofa as input and
>>> then should create a new view, which name is given by a parameter.  =
Is
>>> it correct that I have to introduce another parameter for the input =
view
>>> and have to "getView" in the AE? Is there no way to just use the =
mapped
>>> sofa?
>> Well, what do you map it to? The mapping allows you to have a global =
set
>> of view names and a set of local view names for each component. E.g.
>> your component should postulate that it expects the input data in a =
view
>> called "INPUT" (hardcoded - no parameter). Then you use a sofa =
mapping to
>> map a global view name to the local name "INPUT" on your AE.=20
>=20
> Hmm, maybe I do not understand you. "INPUT" would be the name of the
> view that is accessed in the process() method? Do you mean with
> postulate the capabilities?
>=20
> If the AE should be able to operate on different input views, e.g.,
> because there are several of those AEs in one AAE, then this would =
lead
> again to a parameter specifying "INPUT".
>=20
> Peter
>=20
>=20
>> -- Richard
>=20