Query using a stub Based approach for generating client

[Ravi Kiran Va]

Hello ,

i saw this on a website (I don't have a wsdl file of this SEI)

Context ic = new InitialContext();
Service service = (Service) ctx.lookup("java:comp/env/service/HelloService");
Hello myStub = (Hello) service.getHello();//
System.out.println(myStub.getGreeting("Jane");

I had difficulty in understanding this

Hello myStub = (Hello) service.getHello();// After Obtaining a service , what is service.getHello()

Where this getHello will be present in a wsdl document .Please tell me .