Java web services basic question

Hi all,
I'm new to web services programming, and I'm having trouble getting my head around a few conceptual ideas about web services. I'm in a graduate class right now where our project needs to use web services to create a distributed system. We're using Axis2 and jUDDI for development.
In terms of distributed systems, I am a CORBA programmer, and so when I'm given a problem, my mind immediately goes to how I would implement it in CORBA. Web services seem similar (the WSDL is like an IDL, an jUDDI is like the CORBA naming service, etc) but I'm having difficulty figuring out how to instantiate two (or more) web services that implement the same interface.
From the simple 'hello, world' web services I've done, I have created a java class, compiled it, packaged it into a .aar, and deployed tye aar using Axis2 on Tomcat, my application server (which somehow creates the WSDL file - I'm not exactly sure how that happens either). From there, it's simple to write a client to connect to the web service, which seems to always be running in the application server.
Now, for the system I'm working on, we need to have multiple 'instances' of a service. For example (note this isn't the actual project assignment), say there is a 'GPS_Service' web service with a simple interface with two methods: getLocation(), and setLocation(point p). In my 'application', I want to deploy 15 'instances' of GPS_Service, and set and view their location independently.
Here's where my lack of knowledge hurts. From my point of view, I would need 15 different java classes (i.e. GPS_Service0, GPS_Service1, etc) and 15 different .aar files. Each .aar file would go into the application server, and I would access each service at a different web address.
In CORBA, this is much easier. Classes implement a CORBA interface, and your 'main' method can instantiate as many 'GPS_Service' objects as it wants. This seems to be because CORBA doesn't have an 'application' server where the object is always running.
Does anyone have any suggestions for me, or does anyone have an example of what I'm trying to do?
Thanks,
Eric

I forgot to answer your question.
You have to consume the webservice :
http://gerardnico.com/wiki/ide/eclipse/eclipse_how_to_consume_a_webservice_with_wtp
It will create for you the package
com.siebel.analytics.web.soap.v5
See my example. I think it's enough complete.
Success
Nico

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Do you have any link that would be good for the basics in java web services?
Thanks ... J

HTH
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T

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Moderator Message: Frequently Asked Question. Please search for available information before posting.
Edited by: kishan P on Dec 6, 2010 2:20 PM

From your post it is not clear what kind of Java web service client (JAX-WS, JAX-RPC, Axis) you are using. The problem being faced is also not clear in the post. Some more elaboration may help others in providing inputs.

Java web services basic question

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