how write webservice using ejb 3.0

[vaibhav bhangale]

hi
i am using ejb3.0 session beans in my application and i wanted to implement that session bean with webservice, when i am using java standard datatype as return type of my method its working fine but with the return type of user defined class its not working its giving error as follows

Exception in thread "main" org.jboss.ws.WSException: Cannot obtain java type mapping for: {http://webservice.regdeveloper.co.uk/jaws}SimpleCase

where SimpleCase is my user defined class
if any body having any idea regarding same pls help me

[Ulf Dittmer]

Welcome to JavaRanch.

What does "java standard datatype" mean? You can't send just any Java class over SOAP (or if you really want to, you need to serialize it). Any class that's not a standard like the primitives, String and Calendar needs to be explicitly type-mapped.

[Johannes Koch]

What's this type mapping about after all? I'm trying to write my first own webservice and did two tutorials, leading to this client code:

package test.de.laliluna.library;
 
import java.net.URL;
 
import javax.xml.namespace.QName;
import javax.xml.rpc.Service;
import javax.xml.rpc.ServiceFactory;
 
import de.laliluna.library.BookTestBean;
 
public class WebServiceTestClient
{
 
    /**
     * @param args
     */
    public static void main(String[] args) throws Exception
    {
        URL url = new URL("http://localhost:8080/FirstEjb3Tutorial/BookTestBean?wsdl");
        QName qname = new QName("http://library.laliluna.de/", "BookTestBeanService");
        ServiceFactory factory = ServiceFactory.newInstance();
        Service service = factory.createService(url, qname);
        
        BookTestBean serviceEndpoint = (BookTestBean)service.getPort(BookTestBean.class);
        
        serviceEndpoint.test();    

leading to this exception:

Exception in thread "main" org.jboss.ws.WSException: Cannot obtain java type mapping for: {http://library.laliluna.de/}test
at org.jboss.ws.metadata.builder.jaxrpc.JAXRPCMetaDataBuilder.processDocElement(JAXRPCMetaDataBuilder.java:627)
...
at test.de.laliluna.library.WebServiceTestClient.main(WebServiceTestClient.java:22)    

I expected not to have to care about XML internals of the web service when using Java Annotations - like this:

    @WebMethod
    @Oneway
    public void test()
    {...    

So, if you could answer these questions:
1. Where/how can I manually specify a type mapping? Or do I need to extend my Annotations?
2. My web method has neither parameters nor a return value, how can there be any types to map??

I'd really appreciate it.

Also, does anybody know a good webservices tutorial for complete webservice rookies using JBoss?

Thanks in advance!

[Johannes Koch]

...where

at test.de.laliluna.library.WebServiceTestClient.main(WebServiceTestClient.java:22)

refers to

Service service = factory.createService(url, qname);