Hi Jervis

Perhaps it might be better :

<Customers>
 <Customer 
href="http://localhost/customerservice/customers/john";>John</Customer>
 <!- etc -!>
</Customers>

or

<Customers>
 <Customer href="john">John</Customer>
 <!- etc -!>
</Customers>

followed by a complete state retrieved through /customer/john...

The resource uri it's not really well located inside a customer value space, 
it's a metadata bit...
Relative URIs are also easier to handle for a provider, it just puts there a 
well known key or something...
On the client side this relative URI should be composed with the the original 
URI, so if we have

http://localhost/customerservice/customers retruieving a list of customers then 
the next URI would be

http://localhost/customerservice/customers  + Customers/[EMAIL PROTECTED]

By the way, I'd recommend 'href' attribute be in a XLink [1] namespace :

<Customer xlink:href="john">John</Customer>

Cheers, Sergey

[1] http://www.w3.org/TR/xlink/




Using JAX-WS provider approach proposed, this is done by server side provider implementation. For example, given an URL of http://localhost/customerservice/customers, provider impl should return an xml document like below:

<Customers>
 <Customer>http://localhost/customerservice/customer/john</Customer>
 <Customer>http://localhost/customerservice/customer/eric</Customer>
 <Customer>http://localhost/customerservice/customer/tony</Customer>
</Customers>

On the receiving of this xml on client side, client can navigate to customer john by requesting URI http://localhost/customerservice/customer/john, this in turn will return an xml document :

<Customer>
 <CustomerName>John</CustomerName>
 <CustomerID>ABC</CustomerID>
</Customer>

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