Hi Younsoo,
I am also using axis beta 2 and trying to call an ejb as a webservice and I
am getting the same error as yours.
No such operation 'operationName
Were you able to find a resolution to your problem. Is this already fixed
and will it work if I get the latest build.
Please do reply
Thanks
Vaishakhi
> >
> > ----- Original Message -----
> > From: "Younsoo" <[EMAIL PROTECTED]>
> > To: <[EMAIL PROTECTED]>
> > Sent: Thursday, May 02, 2002 9:08 PM
> > Subject: A problem in Axis Beta2 when the EJB is called
> >
> >
> > > I implemented a webservice with EJB in the Axis beta1. There is a
> > problem in Axis beta2.
> > > When the EJB webservice is called, the axis returns a error message.
My
> > EJB webservice
> > > has 4 operations ( deposit, withdraw, getBalance, and
> > getFormattedBalance )
> > > Here is the error message :
> > >
> > > AXIS error
> > > Sorry, something seems to have gone wrong... here are the details:
> > > No such operation 'getBalance'
> > >
> > >
> > >
> > > I read the Axis beta2 source code and found the reason why the error
> > occurred. The error position
> > > is RPCProvider.java , "processMessage" method.
> > >
> > > . . . . .
> > > . . . . .
> > > . . . . .
> > > // This may have changed, so get it again...
> > > // FIXME (there should be a cleaner way to do this)
> > > operation = msgContext.getOperation();
> > >
> > > if (operation == null) {
> > > QName qname = new QName(body.getNamespaceURI(),
> > > body.getName());
> > > operation = serviceDesc.getOperationByElementQName(qname);
> > > }
> > >
> > > if (operation == null) {
> > > throw new AxisFault(JavaUtils.getMessage("noSuchOperation",
> > > methodName)); <<<== Error
> > occurs in this place.
> > > }
> > >
> > > // Create the array we'll use to hold the actual parameter
> > > // values. We know how big to make it from the metadata.
> > > Object[] argValues = new Object [operation.getNumParams()];
> > > . . . . .
> > > . . . . .
> > > . . . . .
> > >
> > > I think that "server-config.wsdd" file is parsed in WSDDDeployment's
> > constructor, and <service> element's
> > > contents are parsed into WSDDService class.
> > >
> > > public WSDDDeployment(Element e)
> > > throws WSDDException
> > > {
> > > super(e);
> > >
> > > Element [] elements = getChildElements(e, "handler");
> > > int i;
> > > . . . . .
> > > . . . . .
> > > . . . . .
> > > elements = getChildElements(e, "service");
> > > for (i = 0; i < elements.length; i++) {
> > > WSDDService service = new WSDDService(elements[i]);
> > > deployService(service);
> > > }
> > > . . . . .
> > > . . . . .
> > > . . . . .
> > > }
> > >
> > > When WSDDService instance created, WSDDService constructor parses
> > <service> element and calls validateDescriptors () method. A <service>
> > element's subelement, <parameter name="className" value="xxx"/>'s value,
> > java class is loaded.
> > >
> > > public void validateDescriptors()
> > > {
> > > String className = this.getParameter("className");
> > > if (className != null) {
> > > try {
> > > // Will this always be the right classloader?
> > > ClassLoader cl =
> > Thread.currentThread().getContextClassLoader();
> > > Class cls = cl.loadClass(className); <<== <parameter
> > name="className" value="xxx">'s xxx class is loaded.
> > > desc.setImplClass(cls);
> > > initTMR();
> > > String encStyle = (desc.getStyle() ==
ServiceDesc.STYLE_RPC)
> ?
> > > Constants.URI_CURRENT_SOAP_ENC : "";
> > >
> > desc.setTypeMapping((TypeMapping)tmr.getTypeMapping(encStyle));
> > > } catch (Exception ex) {
> > > }
> > > }
> > > . . . . .
> > > . . . . .
> > > . . . . .
> > > }
> > >
> > > As you can see above source, the loaded class, cls is set into
> > ServiceDesc.( desc.setImplClass(cls); ) In setImplClass ()
> > > method operations(xxx class's methods) are instantiated into
> OperationDesc
> > class.
> > >
> > > public void setImplClass(Class implClass) {
> > > if (this.implClass != null)
> > > throw new IllegalArgumentException(
> > > JavaUtils.getMessage("implAlreadySet"));
> > >
> > > this.implClass = implClass;
> > > if (Skeleton.class.isAssignableFrom(implClass)) {
> > > isSkeletonClass = true;
> > > loadSkeletonOperations(); <<== OperationDesc instances are
set.
> > > }
> > > }
> > >
> > > Here is my "server-config.wsdd" file's part . There is no <parameter
> > name="className"> subelement in EJB <service>.
> > > Therefore OperationDesc instances couldn't be created.
> > > msgContext.getOperation() and
> > serviceDesc.getOperationByElementQName(qname) in RPCProvider.java ,
> > > "processMessage" method couldn't retrieve OperationDesc instance.
> > > So AxisFault(JavaUtils.getMessage("noSuchOperation", methodName)) is
> > thrown.
> > >
> > > <!-- As you can see, this is a webservice using general java class -->
> > > <service name="Add" provider="java:RPC">
> > > <parameter name="allowedMethods" value="*"/>
> > > <parameter name="scope" value="Request"/>
> > > <parameter name="className" value="samples.TestWS.WebServiceTest"/>
> > > </service>
> > > <!-- a webservice using EJB -->
> > > <service name="MyAccount" provider="java:EJB">
> > > <parameter name="allowedMethods" value="*"/>
> > > <parameter name="jndiURL" value="localhost"/>
> > > <parameter name="scope" value="request"/>
> > > <parameter name="beanJndiName" value="TestAccount"/>
> > > <parameter name="homeInterfaceName"
> > value="testaccount.TestAccountHome"/>
> > > </service>
> > >
> > > How can I make a webservice using EJB?
