No adapter for endpoint

[RShelley]

I've read a few other threads related to this, but it doesn't seem that I've discovered my fault. I've created a Java class with @Endpoint and @PayloadRoot annotations, configured the Marshalling beans as per the airline example, however, I continue to get this error. Below are examples of my code (trimmed for brevity, doesn't include the WSDL generator). Hopefully someone can see something I overlooked. For reference, I'm using Netbeans 6.0 (which has some nice support for JAXB Binding generation, btw), Java 1.5, Spring 2.0, and Spring WS 1.0.2, and JAXB 2.1.

Full Error

No adapter for endpoint [public javax.xml.bind.JAXBElement<com.mg21.ws.bindings.catalog.Product> com.mg21.shotgun.ws.endpoint.ProductEndpoint.productRequest(int)]: Does your endpoint implement a supported interface like MessageHandler or PayloadEndpoint?

catalog-ws-servlet.xml

<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
       xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-2.0.xsd">

    <bean class="org.springframework.ws.server.endpoint.mapping.PayloadRootAnnotationMethodEndpointMapping">
        <property name="interceptors">
            <list>
                <bean class="org.springframework.ws.server.endpoint.interceptor.PayloadLoggingInterceptor"/>
                <bean class="org.springframework.ws.soap.server.endpoint.interceptor.PayloadValidatingInterceptor">
                    <property name="schema" value="/WEB-INF/schemas/catalog.xsd"/>
                    <property name="validateRequest" value="true"/>
                    <property name="validateResponse" value="true"/>
                </bean>
            </list>
        </property>
        <property name="order" value="1"/>
    </bean>

    <bean id="marshallingEndpoint" class="com.mg21.ws.endpoint.ProductEndpoint">
        <description>
            This endpoint handles echo requests.
        </description>
        <property name="productService" ref="productService"/>
    </bean>

    <bean id="productService" class="com.mg21.ws.service.ProductService">
        <description>
            This bean is our "business" service.
        </description>
    </bean>

    <bean id="marshaller" class="org.springframework.oxm.jaxb.Jaxb2Marshaller">
        <description>
            The JAXB 2 Marshaller is used by the endpoints.
        </description>
        <property name="contextPath" value="com.mg21.ws.bindings.catalog"/>
    </bean>
    
    <bean class="org.springframework.ws.server.endpoint.adapter.GenericMarshallingMethodEndpointAdapter">
        <description>
            This adapter allows for methods that need and returns marshalled objects. The MarshallingEndpoint
            uses JAXB 2 objects.
        </description>
        <constructor-arg ref="marshaller"/>
    </bean>
</beans>

ProductEndpoint.java

@Endpoint
public class ProductEndpoint {

    public static final String NAMESPACE_URI = "http://www.12gaugemedia.com/ws/services/catalog";

    public static final String PRODUCT_REQUEST_LOCAL_NAME = "productRequest";

    public static final String PRODUCT_RESPONSE_LOCAL_NAME = "productResponse";

    private ProductService productService;
    
    private ObjectFactory objectFactory = new ObjectFactory();
    
    @PayloadRoot(localPart = PRODUCT_REQUEST_LOCAL_NAME, namespace = NAMESPACE_URI)
    public JAXBElement<Product> productRequest(int id){      
      return objectFactory.createProductResponse(productService.productRequest(id));
    }
    
    public void setProductService(ProductService productService) {
      this.productService = productService;
    }
}

ProductRequest.java

public class ProductService {

  public Product productRequest (int i){
      Product product = new Product();
      product.setName("Product 1");
      product.setDescr("Lorem Ipsum");
      product.setBlurb("Dolor Amit");
      return product;
  }
}

catalog.xsd

<?xml version="1.0" encoding="UTF-8"?>
<schema xmlns="http://www.w3.org/2001/XMLSchema" elementFormDefault="qualified" attributeFormDefault="qualified"
        targetNamespace="http://www.12gaugemedia.com/ws/services/catalog"
        xmlns:tns="http://www.12gaugemedia.com/ws/services/catalog">
  
  <element name="productRequest">
    <simpleType>
      <restriction base = "int">
        <pattern value="([\d])+"/>
      </restriction>
    </simpleType>
  </element>
  
  <element name="productResponse" type="tns:Product" />
  
  <complexType name="Product">
    <all>
      <element name="name" />
      <element name="descr" />
      <element name="blurb" />
    </all>
  </complexType>
  
</schema>

Thanks!

[Arjen Poutsma]

Try changing

public JAXBElement<Product> productRequest(int id)

into

public JAXBElement<Product> productRequest(JAXBElement<Integer> id)

and see if that works. JAXB doesn't support raw types, only when wrapped it these funny-looking JAXBElements.

[RShelley]

Awesome... thanks for the pointer. I didn't notice that in the documentation. After switching that over, it worked like a charm. Wow, that was a whole day of frustration for something so trivial.

Thanks again!

[RShelley]

I tried this same code with an XPath Endpoint and received a similar error:

No adapter for endpoint [public javax.xml.transform.Source com.mg21.ws.endpoint.ProductEndpoint.productRequest(javax.xml.bind.JAXBElement<java.lang.Integer>)]: Does your endpoint implement a supported interface like MessageHandler or PayloadEndpoint?

    @PayloadRoot(localPart = PRODUCT_REQUEST_LOCAL_NAME, namespace = NAMESPACE_URI)
    public Source productRequest(@XPathParam("/")JAXBElement<Integer> id){
      
      JAXBElement<Product> response = objectFactory.createProductResponse(productService.productRequest(id.getValue().intValue()));
              
      return new MarshallingSource(marshaller, response);
    }

I also replaced the GenericMarshallingMethodEndpointAdapter with a XPathParamAnnotationMethodEndpointAdapter as per the airline example.

    <bean class="org.springframework.ws.server.endpoint.adapter.XPathParamAnnotationMethodEndpointAdapter">
        <property name="namespaces">
            <props>
                <prop key="tns">http://www.12gaugemedia.com/ws/services/catalog</prop>
            </props>
        </property>
    </bean>

When accessing a single simpleType element via XPath, should I be doing something different with my path? Could that even be related?

I also tried using just "Integer" instead of JAXBElement<Integer> (because the airline example doesn't use JAXBElement types) to no avail:

public Source productRequest(@XPathParam("/")Integer id)

Thanks again for your input, I truly appreciate your assistance!

[Arjen Poutsma]

XPath doesn't handle Integers, but it does do Doubles. See http://static.springframework.org/sp...r.html#d0e2094, the end of the section.

[RShelley]

Interesting. Thanks for the clarification. I'll try that out.