The most efficient way, if you have access to a MOM, is to hook them all up to a topic in JMS
-----Original Message----- From: James Black [mailto:[EMAIL PROTECTED] Sent: Wednesday, June 18, 2003 3:27 PM To: [EMAIL PROTECTED] Subject: Re: OT Problem Domain question 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
