I am trying to understand the asynchronous web service (using http transport). I had a few questions, it would be very helpful of some one can suggest any links, books or even answer the questions.
What are asynchronous web-services?
What I have understood is that whenever a web-service is invoked the client continues its execution and specifies a callback method (like Axis2). How does the call back happen?
How can we know that the service is asynchronous from the WSDL ? An Asynchronous web service I had seen had specified some ws-addressing information for the header. Will this be used for generating the reply, asynchronously?