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From John Hawkins <HAWKI...@uk.ibm.com>
Subject Fw: WS-Callback support in Axis?
Date Tue, 15 Nov 2005 14:53:48 GMT
Folks,

Any one got a better way?



----- Forwarded by John Hawkins/UK/IBM on 15/11/2005 14:39 -----

Cooper_JohnD@emc.com 
14/11/2005 18:50
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Subject
RE: WS-Callback support in Axis?






Hi John, 
 
Ok, here?s the skinny. I have a tradition C/S relationship. The clients 
communicate with the server though normal ole WS calls. However and here?s 
the twist, I need to be able to have the server ?callback? the clients to 
cause them to perform actions based on some server state. 
 
I saw WS-Callback and thought I was good, in that I could create a WS call 
like ?ListenforCmd? and then just have the client pend on the async 
callback. It?s still a polling model, but the clients only need to post a 
new ?ListenForCmd? after receiving an action to perform. 
 
Without this, I?ll have to have the clients constantly calling back to the 
server to find out if the server wants them to do anything, a VERY intense 
polling model.
 
I really need an event driven model or traditional callback model to 
facilitate client control, and un-fortunately for me WS-Callback was a 
pretty good fit. 
 
Does Axis have any paradigms that can help me reach my goal?
 
Thanks,
John 
4400 Computer Drive
2nd floor, Mailstop D239
Ext:   35983

From: John Hawkins [mailto:HAWKINSJ@uk.ibm.com] 
Sent: Monday, November 14, 2005 12:56 PM
To: Apache AXIS C User List
Subject: RE: WS-Callback support in Axis?
 

Phew - just ask me the easy ones ;-) 

Do you mean what other clients to use or what sync patterns are there you 
can use? 





Cooper_JohnD@emc.com 
14/11/2005 17:36 


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Subject
RE: WS-Callback support in Axis?
 


 
 




Thanks John, 
  
What?s the suggested alternative given the current implementation in 
axis-c? 
  
Thanks, 
John 
4400 Computer Drive
2nd floor, Mailstop D239
Ext:   35983 
 


From: John Hawkins [mailto:HAWKINSJ@uk.ibm.com] 
Sent: Monday, November 14, 2005 11:59 AM
To: Apache AXIS C User List
Subject: RE: WS-Callback support in Axis? 
  

This support is not currently in-plan. 



Cooper_JohnD@emc.com 
14/11/2005 15:22 
 


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Subject
RE: WS-Callback support in Axis?

 
 


 
 





When and is this support planned?

Thanks,

John 

4400 Computer Drive
2nd floor, Mailstop D239
Ext:   35983


-----Original Message-----
From: Samisa Abeysinghe [mailto:samisa.abeysinghe@gmail.com] 
Sent: Sunday, November 13, 2005 2:35 AM
To: Apache AXIS C User List
Subject: Re: WS-Callback support in Axis?

Cooper_JohnD@emc.com wrote:

> Hi All,
>
> 
>
> Does Axis support any form of the WS-Callback spec from async 
> callbacks to the web services client? And if so, where might I find 
> some examples.
>
Sorry, Axis C++ does not support async callsbacks.

Thanks,
Samisa...

> 
>
> Thanks!
>
> 
>
>
> Thank you,
>
> **John D. Cooper***
> *Principal Software Eng. - CAE
> <http://www.emc.com/>
>
> 4400 Computer Drive
> 2^nd floor, Mailstop D239
> Westboro, MA
> Phone:     1-508-898-5983
> Internal:   35983
> email:   cooper_johnd@emc.com <mailto:cooper_johnd@emc.com>
>
> 
>
>
> ------------------------------------------------------------------------
> 
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