[xfire-user] how to get implementationClass

[fitness life]

hi, xfirer
    I am integrate xfire in our application framework,
which need to get
implementationClass from servers.xml configration, I check the
org.codehaus.xfire.service.Service
and org.codehaus.xfire.service.ServiceInfo， but I can't find any
method or interface can
get the value for example'org.codehaus.xfire.HelloServiceImpl'

<implementationClass>org.codehaus.xfire.HelloServiceImpl</implementationClass>

thanks in advance.

Peter