----- Original Message ----- From: "Ajit Sadasivan" <[EMAIL PROTECTED]> To: <[EMAIL PROTECTED]> Sent: Tuesday, February 18, 2003 08:42 Subject: Callback support in AXIS ?
> Hi, > > This is on developing web services using AXIS.We have > a custom tool ,wrapped in a web service and deployed in Tomcat. > Currently it uses AXIS from apache.But as we understand,AXIS > as of now doesn't support callbacks.In otherword,once the client > instantiate the server,sets some parameters and call certain methods, > it should be able to listen for some asynchronous events > from the server side also.Anybody tried the same ? > > We are aware that this involves the addition of an http server > module for the client side also.Is there any efforts to bring the > same in AXIS in the near future ? We need this implementation urgent.So > is there any other similar frameworks,preferbly free,which supports web > service development,with the capability to do callbacks also. Callbacks are an issue in web services, since they break the 'works over firewall' design goal. I dont know of any current plans to add callback support, though there is nothing to stop you running a server on the client, submitting urls in your requests and having your server side code make the callbacks yourself. You could even use the simple http server built in to axis, though that is really for testing. -steve
