Thanks for reply, I have generated wsdl by modifying composite file as you have suggested, Now i have two wsdl generated on my Tomcat you can see the log below....
INFO: initContextPath: /sample-simple-callback-ws Oct 25, 2007 10:35:24 AM org.apache.tuscany.sca.host.webapp.WebAppServletHost addServletMapping INFO: addServletMapping: /MyClientComponent Oct 25, 2007 10:35:24 AM org.apache.tuscany.sca.host.webapp.WebAppServletHost addServletMapping INFO: addServletMapping: /MyServiceComponent Now i want to understand how callback service work from client side. I m creating client in Eclipse which was non-Tuscany client means i m using eclipse's facility to create web services client. So how i get callback facility in my cleint? Meanwhile i have created one sample in which i have used polling mechanism to get result. So i want to understand how callback facility work i have read somewhere that we need server on client side to get result from service in callback, is it so? I have also seen the axis2 client they have also used callback plus polling mechanism so i m bit confused about callback and polling mechanism. Is it mandatory to use @OneWay method in callback service? means one method is of type void(@OneWay) and other method gives me the result which i have done in polling Is it necessary to use polling mechanism with callback service to get result?if not than using only callback how i get result?can you provide me one sample client with only callback facility? Sorry to ask you so much question but i m not able to clarify myself by searching on net :) It will be very helpful if you can clarify my confusion. -- Thanks in advance Nishant
