Re: Design patterns for Web services,and work flows/composite ser

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Re: Design patterns for Web services,and work flows/composite
ser

2003-07-10 - By Don Morgan

Back
Hi Paul,

You may want to take a look at "Web Services Patterns: Java Edition", by
Paul B. Monday, ISBN 1590590848. I have not read it myself, but so far
it has positive reviews on Amazon.

Sincerely,

Don Morgan
www.DeveloperAdvantage.com <http://www.developeradvantage.com/>

-- --Original Message-- --
From: An interest list for Sun Java Center J2EE Pattern Catalog
[mailto:J2EEPATTERNS-INTEREST@(protected)] On Behalf Of Paul Brebner
Sent: Thursday, July 10, 2003 8:53 PM
To: J2EEPATTERNS-INTEREST@(protected)
Subject: Design patterns for Web services, and work flows/composite
servic es

Hi,

Vijay suggested I send some questions to this list about patterns for
Web Services implemented in J2EE...

1 What's the current best practice for design patterns for Web Services
(built on J2EE)

2 What about work flows (which invoke Web Services)? Distributed
execution of work flows?

3 How about for Web Service Composition? (including perhaps some "OO"
features such as inheritance, replication, reflection, etc?)
I have an idea for distributed execution of workflows, where the work
flow is deployed as a bunch of "control" Web Services - each controller
service contains flow logic and invokes either other control services or
eventually just "primitive" web services to do the tasks.
Could you build/compose complex work flows and also management
capabilities (e.g.) just by deploying the work flow as a bunch of proxy
web services (and is there an obvious design pattern for proxy web
services?) - some of which manage control/execution, others manage
non-functional requirements (e.g. dynamic rebinding to find available
services) etc. And do this recursively?
Regards,

Paul

Paul Brebner
Senior Software Research Engineer
CSIRO Mathematical and Information Sciences
Australian National University, Canberra, Australia
+61 2 6216 7062

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Hi Paul,<o:p></o:p>

<o:p> </o:p>

You may want to take a
look at “Web Services Patterns: Java Edition”, by Paul B.
Monday, ISBN 1590590848.  I have not
read it myself, but so far it has positive reviews on
Amazon.<o:p></o:p>

<o:p> </o:p>

Sincerely,<o:p></o:p>

<o:p> </o:p>

Don Morgan<o:p></o:p>

<a
href="http://www.developeradvantage.com/">www.DeveloperAdvantage.com</a><o:p><
/o:p>

<o:p> </o:p>

<o:p> </o:p>

<o:p> </o:p>

-- --Original Message-- -- 
From: An interest list for Sun
Java Center J2EE Pattern Catalog [mailto:J2EEPATTERNS-INTEREST@(protected)] On Behalf Of Paul Brebner 
Sent: Thursday, July 10, 2003 8:53
PM 
To:
J2EEPATTERNS-INTEREST@(protected) 
Subject: Design patterns for Web
services, and work flows/composite servic es

<o:p> </o:p>

<div>

Hi,<o:p></o:p>

</div>

<div>

 <o:p></o:p>

</div>

<div>

Vijay suggested I send some
questions to this list about patterns for Web Services implemented in
J2EE...<o:p></o:p>

</div>

<div>

 <o:p></o:p>

</div>

<div>

1 What's the current best practice
for design patterns for Web Services (built on J2EE)<o:p></o:p>

</div>

<div>

 <o:p></o:p>

</div>

<div>

2 What about work flows (which
invoke Web Services)?  Distributed execution of work flows?
<o:p></o:p>

</div>

<div>

 <o:p></o:p>

</div>

<div>

3 How about for Web Service
Composition? (including perhaps some "OO" features such as
inheritance, replication, reflection, etc?)<o:p></o:p>

</div>

I have an idea for distributed execution of
workflows, where the work flow is deployed as a bunch of "control"
Web Services - each controller service contains flow logic and invokes either
other control services or eventually just "primitive" web services to
do the tasks. <o:p></o:p>

Could you build/compose complex work flows and also
management capabilities (e.g.) just by deploying the work flow as a bunch of
proxy web services (and is there an obvious design pattern for proxy web
services?)  - some of which manage control/execution, others manage
non-functional requirements (e.g. dynamic rebinding to find available services)
etc.  And do this recursively?<o:p></o:p>

<div>

Regards,<o:p></o:p>

</div>

<div>

 <o:p></o:p>

</div>

<div>

Paul<o:p></o:p>

</div>

<div>

 <o:p></o:p>

</div>

Paul Brebner 
Senior Software Research
Engineer 
CSIRO Mathematical and
Information Sciences 
Australian National University, Canberra,
Australia 
+61 2 6216 7062 <o:p></o:p>

<div>

 <o:p></o:p>

</div>

</div>

</body>

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