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From Eddie Epstein <eaepst...@gmail.com>
Subject Re: Serialize only one view of a CAS
Date Thu, 21 Oct 2010 12:52:11 GMT
Adding multiview support should not be hard. It took a couple hours to change
the CVD to support multiple views without ever seeing CVD code before.
Probably less work than getting a general view copy & name change working.
Note that the CasCopier implements a deep copy, which means that if a FS
in view 1 being copied references an annotation in another view 2 it will copy
view 2 as well.


On Thu, Oct 21, 2010 at 7:44 AM, Jörn Kottmann <kottmann@gmail.com> wrote:
>  If only the Article view is copied, a new view of the same name is created
> in the new CAS, but it seems not be possible to copy the Article View to
> the _InitialView in the new CAS. Which I want to do, because otherwise
> the CAS cannot be opened in the Cas Editor (lacks multi view support).
> Is there a way doing this?
> Oterhwise the current copyCasView method could be extended
> with a new destination view name argument:
> public void copyCasView(CAS aSrcCasView, String dstViewName, boolean
> aCopySofa)
> The current copyCasView method would then simply call the extended one
> with the view name of the source view .
> Jörn
> On 10/20/10 4:09 PM, Eddie Epstein wrote:
>> Hi Jörn,
>> The only way to do this now is to create a 2nd CAS, copy over the
>> parts wanted using the org.apache.uima.util.CasCopier and serialize
>> the new CAS.
>> A more direct solution is the proposal for serialization to support
>> "CAS projections".
>> A brief description is in
>> https://cwiki.apache.org/UIMA/reducing-overhead-for-remote-service-calls.html
>> Eddie
>> On Wed, Oct 20, 2010 at 6:35 AM, Jörn Kottmann<kottmann@gmail.com>  wrote:
>>>  Hi everyone,
>>> is it possible to only serialize one view of a CAS ?
>>> In my case the "_InitialView" contains an xml document, which
>>> is transformed by an AE into a plain text representation, and
>>> placed in a view called "Article".
>>> The serialization code now should only write the "Article"
>>> view into the xmi file, and dropping the "_InitialView".
>>> As far as I know the "_InitialView" must always exist,
>>> so it would be ok to just rename the "Article" view
>>> to "_InitialView" in the serialzed CAS.
>>> I looked at the XmiCasSerializer class but could not find
>>> a setting which specifies which views are serialized.
>>> Thanks,
>>> Jörn

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