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I always read that the worse thing you can do to the system is to monitor on
a message queue. It is very expensive but that might have changed with new
processors. Data queues very efficient.

On Tue, Jan 18, 2011 at 8:01 PM, Joe Sam Shirah <joe_sam@xxxxxxxxxxxxx>wrote:


Hi David,

Yeah, theoretically ...

No theory to it. I've used message queues since 2000.

There's a better argument now to use data queues because there's less
maintenance involved than there used to be. However, if you check the list
where this question has appeared many times, I've always suggested message
queues, but never pooh-poohed data queues, chiefly because I never saw a
reason to down anyone else's ideas. Message queues are Just Another Method
of IPC.


Joe Sam

Joe Sam Shirah - http://www.conceptgo.com
conceptGO - Consulting/Development/Outsourcing
Java Filter Forum: http://www.ibm.com/developerworks/java/
Just the JDBC FAQs: http://www.jguru.com/faq/JDBC
Going International? http://www.jguru.com/faq/I18N
Que Java400? http://www.jguru.com/faq/Java400

----- Original Message -----
From: "David Gibbs" <david@xxxxxxxxxxxx>
To: "Java Programming on and around the IBM i" <java400-l@xxxxxxxxxxxx>
Sent: Tuesday, January 18, 2011 7:21 PM
Subject: Re: Java class return data to calling CL program


On 1/18/2011 4:47 PM, Joe Sam Shirah wrote:
Native message queues are another possibility.

Yeah, theoretically ... but data queues are specifically intended to pass
data around. Message queues aren't.

david


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