Thanks for that Charlton. I guess you've spotted that I've never
gotten around to reading the JCA spec yet :). Damn I'm found out - I
was doing so well bluffing away, talking out of my ass... :)
On 26 Nov 2003, at 15:48, Charlton Barreto wrote:
In fact, the Work Manager indeed has been standardized - in JSR-112
(Connectors 1.5). In addition, the enhanced Timer mechanism they are
proposing is being standardized in J2SE 1.5. Service Data Objects are
nice, but then we already have well-documented patterns for this (e.g.
Data Access Objects) and tools that facilitate them.
It appears BEA and IBM weren't happy with what was produced in JSR-112
or J2SE 1.4 even though they had expert group representatives the
entire time (during the two years the specs were being developed -
i.e. they had plenty of time and resources to explore the implications
and express their thoughts early on) and are off developing a parallel
effort to suit their respective needs and architectures. From what I
know of their architectures, it won't be exactly easy for them to
implement JSR-112 work management or use J2SE 1.4 timers, although it
wasn't difficult at all for JBoss or anyone else and I can't imagine
it being particularly difficult for Geronimo.
I'd definitely watch this space in the future to see what BEA and IBM
come up with, esp. in the Work Manager and Timer spaces. My feel is
that they are proposing this not so much for the end of producing
actual specs, but to voice their protest at not being able to get what
they wanted in Connectors 1.5 or J2SE 1.4. I wouldn't be too certain
that these parallel specs would be considered for J2EE.
James Strachan wrote:
FWIW I like the look of IBM's WorkManager beans and timers for
asynchronous processing of stuff. There was some interesting stuff
about it on this blog...
http://www.devwebsphere.com/devwebsphere/
I was just thinking the other day how its a shame this stuff isn't a
J2EE standard. This stuff might also help us do async deployment
stuff etc?
On 25 Nov 2003, at 22:10, Aaron Mulder wrote:
Apaprently BEA and IBM have pulled together some extensions for
J2EE app servers which they intend to implement and propose as JSRs.
Probably worth keeping in the back of our mind.
http://news.com.com/2100-7345-5111567.html?tag=nl
Particularly:
"The three technical specifications are these: Service Data Objects,
which
provides a common way to pull data from multiple data sources, such
as
Extensible Markup Language-based file systems and relational
databases;
Timer for Application Servers, a mechanism for scheduling processing
jobs;
and Work Manager for Application Servers, for setting up processing
tasks
in parallel."
Aaron
James
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James
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