Re: Functionality Questions

Hi Michael,

A smartfrog component description developed by using smartfrog language, 
can be used for deployment and management of applications in a 
distributed environment.
At the deployment time , it creates a component description instance 
which manages the life cycle of the application . This instance can be 
used for querying the application parameters (which might change at run 
time) available in the component description and hence it can also be 
used as a catalog for that application.

I feel , SLP(service location protocol) component can be used for 
'Consolidated Catalog Management' of number of applications distributed 
across network. This also allows to have dynamic updating of items 
(application) in the catalog.  SLP is available as part of component 
package.

Please get back for any queries.

Regards,
Kumaravel Ganesan


Michael Daglian wrote:

>Hello!
>
>I was wondering if any development/exploration has been done in
>advanced querying and persisting changes to component contexts made at
>runtime. Let me give some background on what I'm trying to do.
>
>I would like to use SmartFrog as the basis for "catalogs" containing
>information about applications. For example, the catalog might contain
>information about how to access a particular application (e.g a host
>and port). Given the dynamic nature of the environment, these values
>might change during the life of the application.
>
>So there are two things I need to support for this functionality. The
>first is some advanced querying to find components which contain some
>attributes. For example, I may need to report all on applications
>residing on a particular host. In addition, some data might be longer
>lived than the interface information described above. An example of
>this might be owner information about a particular application. This
>data might infrequently change at runtime. But these changes need to
>be persisted in some manner.
>
>Any pointers you could give on supporting these two tasks would be
>immensely appreciated. Thanks!
>
>Best Regards,
>
>Mike Daglian
>michael.daglian@gmail dot com
>
>
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