How to use SDO in tuscany sca?

[wang feng]

Hi all,

   I do a sample which has a parameter's type is DataObject,and deploy the 
component with webservice.
   When I invoke the service ,throws an error. 
   Is my usage wrong?
        
My sample like this.

helloworld.composite
<composite xmlns="http://www.osoa.org/xmlns/sca/1.0";
        targetNamespace="http://helloworld";
        xmlns:hw="http://helloworld";
    name="helloworldws">
    <component name="HelloWorldServiceComponent">
        <implementation.java class="helloworld.HelloWorldImpl" />
            <service name="HelloWorldService">
                <interface.wsdl 
interface="http://helloworld#wsdl.interface(HelloWorld)" />
                <binding.ws/>
            </service>
    </component>
</composite>

HelloWorldImpl.java
@Service(HelloWorldService.class)
public class HelloWorldImpl implements HelloWorldService {
    public String getGreetings(DataObject name) {
        return "Hello " + name.getString("first") + " " + 
name.getString("last");
    }
}       

You can download the full testcase on 
http://www.blogjava.net/Files/wangfeng/src.zip
                        
Thanks
Wang Feng


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