Re: Database resultset managing best practices

Please note GigaSpaces support ability to query entries stored within the
space using SQL.

We support hash index and AVL/btree (http://en.wikipedia.org/wiki/AVL_tree)
index so both classic JavaSpaces matching and bigger/less than queries will
be executed very fast.

See:

http://www.gigaspaces.com/docs/manual/JavaSpaces_API.htm

http://www.gigaspaces.com/docs/manual/Querying_The_Space.htm

http://www.gigaspaces.com/docs/manual/continuous_query.htm



We support also parallel query in partitioned space configuration.

http://www.gigaspaces.com/docs/manual/Load_balancing_group.htm#Multi_Space_O
perations



Shay





-----Original Message-----
From: Gregg Wonderly [mailto:[email protected]]
Sent: Tuesday, May 09, 2006 10:33 PM
To: [email protected]
Subject: Re: Database resultset managing best practices



Andrea Angeloni wrote:

> Thanks everyone for the suggests.

>

> GW> Storing large objects into Javaspaces as a temporary exchange of data

> GW> interface, is possible, but unless you have lots of queries and lots
of

> GW> work for each query where you want to distribute the load, the use of

> GW> Javaspaces might not be a good match.

>

> Yes, but I'm doing a theoretical work, it's a proof rather a real word

> application (where performances and other non-funtional aspects may be

> critical).

> I'll try to compare this solution with conventional DB apps.

>

> By the way, is there somewhere where I can find a comparison between a

> "space-based db platform" and an ordinary n-tier architecture db platform?

> N.B using JavaSpaces as a middleware, not as a persistence layer, as a
"db"

> itself).



You might also find my http://griddle.dev.java.net project interesting from
the

perspective that it has an executor and non-equals matching.  These things
can

provide for a different construction of a space-like application.  I've not
been

able to use griddle for it's designed goal yet.  It's an evaluation
technology

more than a production environment.  But, if you're doing some research in
this

area, I'd appreciate having some feedback on it.



Gregg Wonderly



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