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From Michael Baessler <...@michael-baessler.de>
Subject Re: read/write resource sharing
Date Wed, 29 Aug 2007 16:27:58 GMT
Another possibility are external resources. When defining external 
resources one or more annotators can share the same resource.
The UIMA framework take care of the resource's life cycle.
You will find some documentation about external resources in the UIMA 
reference guide at External Resource Dependencies.
You can also check the UIMA examples - tutorial ex6 use external 
resources. (apache-uima/examples/descriptors/tutorial/ex6)

-- Michael

Thilo Goetz wrote:
> If this happens often, one idea might be just to
> stick the information in the CAS.  That way you
> can even run several instances of this pipeline
> and it will still work ;-)  Of course you're not
> persisting the info that way, not sure if this is
> a requirement or not.
> --Thilo
> Andrew Shirk wrote:
>> What is the best practice for sharing read/write resources amongst
>> analysis engines in an aggregate? For example, say you have an annotator
>> early in a flow that reads a configuration file off disk in order
>> determine its behavior. Then, the next annotator does something, and
>> needs to write changes to the configuration file so that another
>> annotator downstream, whose behavior is also determined by the contents
>> of the configuration file, can read in the resource that contains the
>> changes.
>> Does this make sense?
>> Any help or ideas would be appreciated. I can think of some ugly hacks,
>> but it would be nice to know if I'm missing some portion of the API that
>> supports this type of scenario.
>> Thanks, Andrew

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