good suggestion. you could even dynamically keep the schema up to date and publish it for your clients at a well known URL. Or include a dynamic URL reference to it in the SOAP message.
-----Original Message----- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] Sent: Wednesday, June 18, 2003 3:30 PM To: [EMAIL PROTECTED] Subject: Re: OT Problem Domain question 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 ---------------------------------------------------------------------------- ------------------- Have you seen our website?.... http://www.vodafone.co.nz CAUTION: This correspondence is confidential and intended for the named recipient(s) only. If you are not the named recipient and receive this correspondence in error, you must not copy, distribute or take any action in reliance on it and you should delete it from your system and notify the sender immediately. Thank you. Unless otherwise stated, any views or opinions expressed are solely those of the author and do not represent those of Vodafone New Zealand Limited. Vodafone New Zealand Limited 21 Pitt Street, Private Bag 92161, Auckland, 1020, New Zealand Telephone + 64 9 357 5100 Facsimile + 64 9 377 0962
