[xquery-talk] XQuery Platform Support

[Michael Kay]

Surely, if this is a real application, you should be writing it in XSLT?

Never mind the merits of the languages, surely a technology that has
been stable for nearly four years is more appropriate to your needs than
one that is still in beta?

Michael Kay


> -----Original Message-----
> From: talk-bounces at xquery.com 
> [mailto:talk-bounces at xquery.com] On Behalf Of john.zink at prudential.com
> Sent: 16 October 2003 15:29
> To: talk at xquery.com
> Subject: RE: [xquery-talk] XQuery Platform Support
> 
> 
> 
> OK..Let me see if I can explain it a bit clearer.
> We basically have 2 scenarios where a rules engine needs to 
> be implemented. For our "new business" process I need an 
> engine that examines application type questions and returns a 
> result for the policy.  The result can be either accept or 
> reject the policy.  The decision is made based upon a 
> collection of rules.  For example if you have 3 speeding 
> tickets in the last month you will be declined.  This engine 
> has been created as I explained before.  The new engine is 
> replacing COM components that have all the rules hard coded 
> in the form of "IF-THEN-ELSE" statements.  The user can now 
> create the rules based on a schema that describes the message 
> the client will pass to the engine.  The engine takes the 
> rules entered by the user and converts them to XQuery 
> expressions.  The engine than runs the XQuery expressions 
> against the XML being passed from the client to
> determine the result for the policy (hold or accept).    The second
> scenario is we have another engine running on the mainframe 
> that processes policies when they renew on a yearly basis.  
> This engine is basically a COBOL program that processes a 
> sequential input file and updates a VSAM file with the 
> results.  This engine processes thousands of records every
> night in a batch process.   I would like to use the same 
> client application
> for building the rules as I mentioned in the first scenario.  
> I would then need a way to get a mainframe program that runs 
> in a batch process to somehow process the XQuery statements.  
> I believe it would be too slow to send mainframe records down 
> to the server to run against the distributed
> engine.   I only have a short window for the mainframe batch 
> process.  Hope
> this clarifies my situation.  I've just started to examine 
> the mainframe process so I haven't really formulated any real 
> solutions for the mainframe side of the problem.
> 
> 
> John Z
> 
> 
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>               "James Governor"                                
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>               <jgovernor at redmonk.com>                     To: 
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> <john.zink at prudential.com>,      
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> <talk at xquery.com>                                             
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>            
>               Thursday October 16, 2003 09:48 AM          
> Subject:   RE: [xquery-talk] XQuery Platform Support          
>                
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> 
> 
> 
> I am not sure from your question exactly what scenario you're 
> talking to.
> 
> However it is worth noting that IBM this week acquired a 
> mainframe data integration firm called CrossAccess, which was 
> pitched as filling out its DB2 Information Integrator (II) strategy
> 
http://www.ibm.com/news/us/2003/10/142.html

DB2 II is where IBM plans to instantiate xQuery, and as such it looks as
if IBM is potentially moving in a helpful direction. Assuming xquery is
mapped to mainframe data sources accessed natively using CrossAccess
connector technology.

Until IBM delivers a native XML store for DB2 however, some of the
xQuery productization is on hold.

IBM was partnering with Nimble Technologies for xQuery support, but
Actuate acquired Nimble, so I am not sure of the status of that deal.

Hope that helps a little but I am not sure we understood your problem.

As SoftwareAG points out, Tamino already offers xQuery support on the
mainframe.

Are you running 390 or ZOS, or VM/VSE or whatever? Which IBM mainframe
OS?


-----Original Message-----
From: talk-bounces at xquery.com [mailto:talk-bounces at xquery.com] On Behalf
Of john.zink at prudential.com
Sent: Thursday, October 16, 2003 2:07 PM
To: talk at xquery.com
Cc: ktegels at msn.com
Subject: RE: [xquery-talk] XQuery Platform Support


Not in the Yukon beta, but I am in the Whidbey alpha program. The
mainframe OS is IBM.








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