Why not just include a version number with the XML feed? Your clients will
know it has changed if the version number increments. If you can't change
the XML schema itself, then the version number could go in a SOAP header,
or any number of other places.
ADK
--------------------------------------------
There is no magic.
James Black
<[EMAIL PROTECTED] To: [EMAIL PROTECTED]
rg> cc:
Subject: Re: OT Problem Domain question
06/19/2003
08:27 AM
Please respond
to axis-user
Jim Collins wrote:
>I have a number of clients that receive an XML datafeed. This datafeed can
>change due to various circumstances and I would like all the clients to be
>notified of any change. Would it be possible for a Web Service to notify
all
>clients of a change or would the clients need to continually poll the Web
>Service for any changes.
>
>
I am not positive what the ramifications would be, but callbacks may
be an option here.
If all of your clients have web servers, a better solution might be to
have a cgi program that your server contacts to inform them of any change.
Just some thoughts.
--
"We do not lose our identity in our relations with others; in part, at
least, we achieve our identity by those relations." Tony Blair, 1993
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