Re: [Tm4j-developers] Drill-down topic maps

[Gerd M. <ge...@sm...>]

> > We would need some lookup service that tells us which topicmaps
> > are around
> > there and what topics they 'export' for external use. The export
> > set of topics
> > could be managed via a scope, i.e. all topics in a special
> > export-scope are
> > available for external use. And we would need a protocol for topicmap
> > engine communication, e.g. Soap.
> >
> 
> For "topic map content types" this would work. For other content types,
> resolving the locator would involve a different interpretation of the
> fragment ID, and it would be nice to have some pluggable way of handling
> occurrences of any type or locator notation (in the topic map) and of any
> resource content type. However, I'm not sure that this is something which
> should be addressed by TM4J - I would prefer to see the development of a
> generic content addressing framework (such as a grove engine) as a separate
> project and integrate TM4J with that. Does anyone know of such a thing ?

The goal of the Infozone project Prowler is an integration layer for 
different data sources. We have an adapter/resource concept, where a
resource represents a data source and an adapter converts resource
data to XML documents. Thus you can integrate, e.g. SQL database,
mailboxes, etc. The links between XML documents are described with 
simple XLinks. And there is a XLinkResolver that takes the URL and
finds the correct adapter/resource where this link points to. But
the approach of simple XLinks has it's limits. First I thought
about using extended XLinks, but then I stumpled across topicmaps 
and this approach is much more better and flexible. So, the separate 
project you are looking for could be Prowler.

Best Regards,
Gerd

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________________________________________________________________
Gerd Mueller                                    ge...@sm...     
SMB GmbH                                  http://www.smb-tec.com