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Re: Lindasphere, XML spaces, RELAX NG ??? (was Re:

• To: xml-dev@l...
• Subject: Re: Lindasphere, XML spaces, RELAX NG ??? (was Re: A multi-step
• From: bob mcwhirter <bob@w...>
• Date: Thu, 22 Aug 2002 14:20:38 -0400 (EDT)
• In-reply-to: <4.2.2.20020822102827.025e8980@t...>

This is certainly heading tangential to XML-DEV's charter at
this point, but..

I've recently been tackling the tuple/tree issues, but not
directly related to Linda or TupleSpaces at all.  The drools project
(http://drools.org/) provides a object-oriented face (hence, graphs and
trees of objects) to a rules-engine using Forgy's tuple-based algorithm.

Coincidently, it also is semantics-agnostic.  Right now it works with
Java object semantics.  Next week it'll have XML semantics.  I've got a
guy thinking hard about an RDF semantics module for drools.  

	-bob


On Thu, 22 Aug 2002, Jack Park wrote:

> Google certainly goes flat on it!  Great name, though.
> 
> There exists the open source (Java, Apache license) jxtaSpaces at 
> http://jxtaspaces.jxta.org
> 
> I have heard of another open source tuplespace project that uses SOAP, 
> though I don't know what its status is at the moment.
> 
> Jack
> 
> At 01:19 PM 8/22/2002 -0400, John Cowan wrote:
> >Mike Champion scripsit:
> >
> > > Could you elaborate your thoughts please John, perhaps with some pointers
> > > to resources on the web explaining the Lindasphere?
> >
> >I made up that term: it's officially the "tuple space".  Linda is a method
> >of doing parallel/distributed processing with minimal coupling.  Linda
> >applications write tuples (records) into the tuple space, and then
> >they remain there until removed by other Linda applications, which have
> >the choice of accepting or peeking based on pattern matching.
> >
> >A natural generalization of Linda would go from tuples to full trees, and
> >from simple pattern matching (based on some tuple elements having specific
> >values) to recognition based on validation against a schema.
> >
> > >  Pointers to real
> > > projects using RELAX NG in this way would also be appreciated.
> >
> >It would be pretty surprising if I had any, since I made up the notion
> >about five seconds before writing the paragraph that mentions it!
> >Which is not to deny that someone else could have made it up first.

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  • Re: Lindasphere, XML spaces, RELAX NG ??? (was Re: A multi-step
    • From: Jack Park <jackpark@t...>

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