ServiceDelegate (Java Platform SE 8 )
Keywords: javax.xml.ws.spi.ServiceDelegate class
Date: 2026-04-22

javax.xml.ws.spi

## Class ServiceDelegate

- java.lang.Object
- - javax.xml.ws.spi.ServiceDelegate

-     public abstract class ServiceDelegate
      extends Object

  Service delegates are used internally by `Service` objects to allow pluggability of JAX-WS implementations.

  Every `Service` object has its own delegate, created using the `Provider.createServiceDelegate(java.net.URL, javax.xml.namespace.QName, java.lang.Class<? extends javax.xml.ws.Service>)` method. A `Service` object delegates all of its instance methods to its delegate.

  Since:
    JAX-WS 2.0
  See Also:
    `Service`, `Provider`

- - ### Constructor Summary

    Constructors
    Modifier | Constructor and Description
    --- | ---
    `protected` | `ServiceDelegate()`

  - ### Method Summary

    All Methods Instance Methods Abstract Methods
    Modifier and Type | Method and Description
    --- | ---
    `abstract void` | `addPort(QName portName, String bindingId, String endpointAddress)` Creates a new port for the service.
    `abstract <T> Dispatch<T>` | `createDispatch(EndpointReference endpointReference, Class<T> type, Service.Mode mode, WebServiceFeature... features)` Creates a `Dispatch` instance for use with objects of the user's choosing.
    `abstract Dispatch<Object>` | `createDispatch(EndpointReference endpointReference, JAXBContext context, Service.Mode mode, WebServiceFeature... features)` Creates a `Dispatch` instance for use with JAXB generated objects.
    `abstract <T> Dispatch<T>` | `createDispatch(QName portName, Class<T> type, Service.Mode mode)` Creates a `Dispatch` instance for use with objects of the user's choosing.
    `abstract <T> Dispatch<T>` | `createDispatch(QName portName, Class<T> type, Service.Mode mode, WebServiceFeature... features)` Creates a `Dispatch` instance for use with objects of the user's choosing.
    `abstract Dispatch<Object>` | `createDispatch(QName portName, JAXBContext context, Service.Mode mode)` Creates a `Dispatch` instance for use with JAXB generated objects.
    `abstract Dispatch<Object>` | `createDispatch(QName portName, JAXBContext context, Service.Mode mode, WebServiceFeature... features)` Creates a `Dispatch` instance for use with JAXB generated objects.
    `abstract Executor` | `getExecutor()` Returns the executor for this `Service`instance.
    `abstract HandlerResolver` | `getHandlerResolver()` Returns the configured handler resolver.
    `abstract <T> T` | `getPort(Class<T> serviceEndpointInterface)` The `getPort` method returns a proxy.
    `abstract <T> T` | `getPort(Class<T> serviceEndpointInterface, WebServiceFeature... features)` The `getPort` method returns a proxy.
    `abstract <T> T` | `getPort(EndpointReference endpointReference, Class<T> serviceEndpointInterface, WebServiceFeature... features)` The `getPort` method returns a proxy.
    `abstract <T> T` | `getPort(QName portName, Class<T> serviceEndpointInterface)` The `getPort` method returns a proxy.
    `abstract <T> T` | `getPort(QName portName, Class<T> serviceEndpointInterface, WebServiceFeature... features)` The `getPort` method returns a proxy.
    `abstract Iterator<QName>` | `getPorts()` Returns an `Iterator` for the list of `QName`s of service endpoints grouped by this service
    `abstract QName` | `getServiceName()` Gets the name of this service.
    `abstract URL` | `getWSDLDocumentLocation()` Gets the location of the WSDL document for this Service.
    `abstract void` | `setExecutor(Executor executor)` Sets the executor for this `Service` instance.
    `abstract void` | `setHandlerResolver(HandlerResolver handlerResolver)` Sets the `HandlerResolver` for this `Service` instance.

    - ### Methods inherited from class java.lang.Object

      `clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait`

- - ### Constructor Detail

    - #### ServiceDelegate

          protected ServiceDelegate()

  - ### Method Detail

    - #### getPort

          public abstract <T> T getPort(QName portName,
                                        Class<T> serviceEndpointInterface)

      The `getPort` method returns a proxy. A service client uses this proxy to invoke operations on the target service endpoint. The `serviceEndpointInterface` specifies the service endpoint interface that is supported by the created dynamic proxy instance.
      Parameters:
        `portName` - Qualified name of the service endpoint in the WSDL service description
        `serviceEndpointInterface` - Service endpoint interface supported by the dynamic proxy
      Returns:
        Object Proxy instance that supports the specified service endpoint interface
      Throws:
        `WebServiceException` - This exception is thrown in the following cases:
        - If there is an error in creation of the proxy
        - If there is any missing WSDL metadata as required by this method
        - If an illegal `serviceEndpointInterface` or `portName` is specified
      See Also:
        `Proxy`, `InvocationHandler`

    - #### getPort

          public abstract <T> T getPort(QName portName,
                                        Class<T> serviceEndpointInterface,
                                        WebServiceFeature... features)

      The `getPort` method returns a proxy. A service client uses this proxy to invoke operations on the target service endpoint. The `serviceEndpointInterface` specifies the service endpoint interface that is supported by the created dynamic proxy instance.
      Parameters:
        `portName` - Qualified name of the service endpoint in the WSDL service description
        `serviceEndpointInterface` - Service endpoint interface supported by the dynamic proxy or instance
        `features` - A list of WebServiceFeatures to configure on the proxy. Supported features not in the `features` parameter will have their default values.
      Returns:
        Object Proxy instance that supports the specified service endpoint interface
      Throws:
        `WebServiceException` - This exception is thrown in the following cases:
        - If there is an error in creation of the proxy
        - If there is any missing WSDL metadata as required by this method
        - If an illegal `serviceEndpointInterface` or `portName` is specified
        - If a feature is enabled that is not compatible with this port or is unsupported.
      Since:
        JAX-WS 2.1
      See Also:
        `Proxy`, `InvocationHandler`, `WebServiceFeature`

    - #### getPort

          public abstract <T> T getPort(EndpointReference endpointReference,
                                        Class<T> serviceEndpointInterface,
                                        WebServiceFeature... features)

      The `getPort` method returns a proxy. The parameter `endpointReference` specifies the endpoint that will be invoked by the returned proxy. If there are any reference parameters in the `endpointReference`, then those reference parameters MUST appear as SOAP headers, indicating them to be reference parameters, on all messages sent to the endpoint. The `endpointReference's` address MUST be used for invocations on the endpoint. The parameter `serviceEndpointInterface` specifies the service endpoint interface that is supported by the returned proxy. In the implementation of this method, the JAX-WS runtime system takes the responsibility of selecting a protocol binding (and a port) and configuring the proxy accordingly from the WSDL associated with this `Service` instance or from the metadata from the `endpointReference`. If this `Service` instance has a WSDL and the `endpointReference` metadata also has a WSDL, then the WSDL from this instance MUST be used. If this `Service` instance does not have a WSDL and the `endpointReference` does have a WSDL, then the WSDL from the `endpointReference` MAY be used. The returned proxy should not be reconfigured by the client. If this `Service` instance has a known proxy port that matches the information contained in the WSDL, then that proxy is returned, otherwise a WebServiceException is thrown.

      Calling this method has the same behavior as the following

           port = service.getPort(portName, serviceEndpointInterface);

      where the `portName` is retrieved from the metadata of the `endpointReference` or from the `serviceEndpointInterface` and the WSDL associated with this `Service` instance.
      Parameters:
        `endpointReference` - The `EndpointReference` for the target service endpoint that will be invoked by the returned proxy.
        `serviceEndpointInterface` - Service endpoint interface.
        `features` - A list of `WebServiceFeatures` to configure on the proxy. Supported features not in the `features` parameter will have their default values.
      Returns:
        Object Proxy instance that supports the specified service endpoint interface.
      Throws:
        `WebServiceException` -
        - If there is an error during creation of the proxy.
        - If there is any missing WSDL metadata as required by this method.
        - If the `endpointReference` metadata does not match the `serviceName` of this `Service` instance.
        - If a `portName` cannot be extracted from the WSDL or `endpointReference` metadata.
        - If an invalid `endpointReference` is specified.
        - If an invalid `serviceEndpointInterface` is specified.
        - If a feature is enabled that is not compatible with this port or is unsupported.
      Since:
        JAX-WS 2.1

    - #### getPort

          public abstract <T> T getPort(Class<T> serviceEndpointInterface)

      The `getPort` method returns a proxy. The parameter `serviceEndpointInterface` specifies the service endpoint interface that is supported by the returned proxy. In the implementation of this method, the JAX-WS runtime system takes the responsibility of selecting a protocol binding (and a port) and configuring the proxy accordingly. The returned proxy should not be reconfigured by the client.
      Parameters:
        `serviceEndpointInterface` - Service endpoint interface
      Returns:
        Object instance that supports the specified service endpoint interface
      Throws:
        `WebServiceException` -
        - If there is an error during creation of the proxy
        - If there is any missing WSDL metadata as required by this method
        - If an illegal `serviceEndpointInterface` is specified

    - #### getPort

          public abstract <T> T getPort(Class<T> serviceEndpointInterface,
                                        WebServiceFeature... features)

      The `getPort` method returns a proxy. The parameter `serviceEndpointInterface` specifies the service endpoint interface that is supported by the returned proxy. In the implementation of this method, the JAX-WS runtime system takes the responsibility of selecting a protocol binding (and a port) and configuring the proxy accordingly. The returned proxy should not be reconfigured by the client.
      Parameters:
        `serviceEndpointInterface` - Service endpoint interface
        `features` - An array of `WebServiceFeatures` to configure on the proxy. Supported features not in the `features` parameter will have their default values.
      Returns:
        Object instance that supports the specified service endpoint interface
      Throws:
        `WebServiceException` -
        - If there is an error during creation of the proxy
        - If there is any missing WSDL metadata as required by this method
        - If an illegal `serviceEndpointInterface` is specified
        - If a feature is enabled that is not compatible with this port or is unsupported.
      Since:
        JAX-WS 2.1
      See Also:
        `WebServiceFeature`

    - #### addPort

          public abstract void addPort(QName portName,
                                       String bindingId,
                                       String endpointAddress)

      Creates a new port for the service. Ports created in this way contain no WSDL port type information and can only be used for creating `Dispatch`instances.
      Parameters:
        `portName` - Qualified name for the target service endpoint
        `bindingId` - A URI identifier of a binding.
        `endpointAddress` - Address of the target service endpoint as a URI
      Throws:
        `WebServiceException` - If any error in the creation of the port
      See Also:
        `SOAPBinding.SOAP11HTTP_BINDING`, `SOAPBinding.SOAP12HTTP_BINDING`, `HTTPBinding.HTTP_BINDING`

    - #### createDispatch

          public abstract <T> Dispatch<T> createDispatch(QName portName,
                                                         Class<T> type,
                                                         Service.Mode mode)

      Creates a `Dispatch` instance for use with objects of the user's choosing.
      Parameters:
        `portName` - Qualified name for the target service endpoint
        `type` - The class of object used for messages or message payloads. Implementations are required to support `javax.xml.transform.Source` and `javax.xml.soap.SOAPMessage`.
        `mode` - Controls whether the created dispatch instance is message or payload oriented, i.e. whether the user will work with complete protocol messages or message payloads. E.g. when using the SOAP protocol, this parameter controls whether the user will work with SOAP messages or the contents of a SOAP body. Mode MUST be `MESSAGE` when type is `SOAPMessage`.
      Returns:
        Dispatch instance
      Throws:
        `WebServiceException` - If any error in the creation of the `Dispatch` object
      See Also:
        `Source`, `SOAPMessage`

    - #### createDispatch

          public abstract <T> Dispatch<T> createDispatch(QName portName,
                                                         Class<T> type,
                                                         Service.Mode mode,
                                                         WebServiceFeature... features)

      Creates a `Dispatch` instance for use with objects of the user's choosing.
      Parameters:
        `portName` - Qualified name for the target service endpoint
        `type` - The class of object used for messages or message payloads. Implementations are required to support `javax.xml.transform.Source` and `javax.xml.soap.SOAPMessage`.
        `mode` - Controls whether the created dispatch instance is message or payload oriented, i.e. whether the user will work with complete protocol messages or message payloads. E.g. when using the SOAP protocol, this parameter controls whether the user will work with SOAP messages or the contents of a SOAP body. Mode MUST be `MESSAGE` when type is `SOAPMessage`.
        `features` - A list of `WebServiceFeatures` to configure on the proxy. Supported features not in the `features` parameter will have their default values.
      Returns:
        Dispatch instance
      Throws:
        `WebServiceException` - If any error in the creation of the `Dispatch` object or if a feature is enabled that is not compatible with this port or is unsupported.
      Since:
        JAX-WS 2.1
      See Also:
        `Source`, `SOAPMessage`, `WebServiceFeature`

    - #### createDispatch

          public abstract <T> Dispatch<T> createDispatch(EndpointReference endpointReference,
                                                         Class<T> type,
                                                         Service.Mode mode,
                                                         WebServiceFeature... features)

      Creates a `Dispatch` instance for use with objects of the user's choosing. If there are any reference parameters in the `endpointReference`, then those reference parameters MUST appear as SOAP headers, indicating them to be reference parameters, on all messages sent to the endpoint. The `endpointReference's` address MUST be used for invocations on the endpoint. In the implementation of this method, the JAX-WS runtime system takes the responsibility of selecting a protocol binding (and a port) and configuring the dispatch accordingly from the WSDL associated with this `Service` instance or from the metadata from the `endpointReference`. If this `Service` instance has a WSDL and the `endpointReference` also has a WSDL in its metadata, then the WSDL from this instance MUST be used. If this `Service` instance does not have a WSDL and the `endpointReference` does have a WSDL, then the WSDL from the `endpointReference` MAY be used. An implementation MUST be able to retrieve the `portName` from the `endpointReference` metadata.

      This method behaves the same as calling

           dispatch = service.createDispatch(portName, type, mode, features);

      where the `portName` is retrieved from the WSDL or `EndpointReference` metadata.
      Parameters:
        `endpointReference` - The `EndpointReference` for the target service endpoint that will be invoked by the returned `Dispatch` object.
        `type` - The class of object used to messages or message payloads. Implementations are required to support `javax.xml.transform.Source` and `javax.xml.soap.SOAPMessage`.
        `mode` - Controls whether the created dispatch instance is message or payload oriented, i.e. whether the user will work with complete protocol messages or message payloads. E.g. when using the SOAP protocol, this parameter controls whether the user will work with SOAP messages or the contents of a SOAP body. Mode MUST be `MESSAGE` when type is `SOAPMessage`.
        `features` - An array of `WebServiceFeatures` to configure on the proxy. Supported features not in the `features` parameter will have their default values.
      Returns:
        Dispatch instance
      Throws:
        `WebServiceException` -
        - If there is any missing WSDL metadata as required by this method.
        - If the `endpointReference` metadata does not match the `serviceName` or `portName` of a WSDL associated with this `Service` instance.
        - If the `portName` cannot be determined from the `EndpointReference` metadata.
        - If any error in the creation of the `Dispatch` object.
        - If a feature is enabled that is not compatible with this port or is unsupported.
      Since:
        JAX-WS 2.1
      See Also:
        `Source`, `SOAPMessage`, `WebServiceFeature`

    - #### createDispatch

          public abstract Dispatch<Object> createDispatch(QName portName,
                                                          JAXBContext context,
                                                          Service.Mode mode)

      Creates a `Dispatch` instance for use with JAXB generated objects.
      Parameters:
        `portName` - Qualified name for the target service endpoint
        `context` - The JAXB context used to marshall and unmarshall messages or message payloads.
        `mode` - Controls whether the created dispatch instance is message or payload oriented, i.e. whether the user will work with complete protocol messages or message payloads. E.g. when using the SOAP protocol, this parameter controls whether the user will work with SOAP messages or the contents of a SOAP body.
      Returns:
        Dispatch instance
      Throws:
        `WebServiceException` - If any error in the creation of the `Dispatch` object
      See Also:
        `JAXBContext`

    - #### createDispatch

          public abstract Dispatch<Object> createDispatch(QName portName,
                                                          JAXBContext context,
                                                          Service.Mode mode,
                                                          WebServiceFeature... features)

      Creates a `Dispatch` instance for use with JAXB generated objects.
      Parameters:
        `portName` - Qualified name for the target service endpoint
        `context` - The JAXB context used to marshall and unmarshall messages or message payloads.
        `mode` - Controls whether the created dispatch instance is message or payload oriented, i.e. whether the user will work with complete protocol messages or message payloads. E.g. when using the SOAP protocol, this parameter controls whether the user will work with SOAP messages or the contents of a SOAP body.
        `features` - A list of `WebServiceFeatures` to configure on the proxy. Supported features not in the `features` parameter will have their default values.
      Returns:
        Dispatch instance
      Throws:
        `WebServiceException` - If any error in the creation of the `Dispatch` object or if a feature is enabled that is not compatible with this port or is unsupported.
      Since:
        JAX-WS 2.1
      See Also:
        `JAXBContext`, `WebServiceFeature`

    - #### createDispatch

          public abstract Dispatch<Object> createDispatch(EndpointReference endpointReference,
                                                          JAXBContext context,
                                                          Service.Mode mode,
                                                          WebServiceFeature... features)

      Creates a `Dispatch` instance for use with JAXB generated objects. If there are any reference parameters in the `endpointReference`, then those reference parameters MUST appear as SOAP headers, indicating them to be reference parameters, on all messages sent to the endpoint. The `endpointReference's` address MUST be used for invocations on the endpoint. In the implementation of this method, the JAX-WS runtime system takes the responsibility of selecting a protocol binding (and a port) and configuring the dispatch accordingly from the WSDL associated with this `Service` instance or from the metadata from the `endpointReference`. If this `Service` instance has a WSDL and the `endpointReference` also has a WSDL in its metadata, then the WSDL from this instance MUST be used. If this `Service` instance does not have a WSDL and the `endpointReference` does have a WSDL, then the WSDL from the `endpointReference` MAY be used. An implementation MUST be able to retrieve the `portName` from the `endpointReference` metadata.

      This method behavies the same as calling

           dispatch = service.createDispatch(portName, context, mode, features);

      where the `portName` is retrieved from the WSDL or `endpointReference` metadata.
      Parameters:
        `endpointReference` - The `EndpointReference` for the target service endpoint that will be invoked by the returned `Dispatch` object.
        `context` - The JAXB context used to marshall and unmarshall messages or message payloads.
        `mode` - Controls whether the created dispatch instance is message or payload oriented, i.e. whether the user will work with complete protocol messages or message payloads. E.g. when using the SOAP protocol, this parameter controls whether the user will work with SOAP messages or the contents of a SOAP body.
        `features` - An array of `WebServiceFeatures` to configure on the proxy. Supported features not in the `features` parameter will have their default values.
      Returns:
        Dispatch instance
      Throws:
        `WebServiceException` -
        - If there is any missing WSDL metadata as required by this method.
        - If the `endpointReference` metadata does not match the `serviceName` or `portName` of a WSDL associated with this `Service` instance.
        - If the `portName` cannot be determined from the `EndpointReference` metadata.
        - If any error in the creation of the `Dispatch` object.
        - if a feature is enabled that is not compatible with this port or is unsupported.
      Since:
        JAX-WS 2.1
      See Also:
        `JAXBContext`, `WebServiceFeature`

    - #### getServiceName

          public abstract QName getServiceName()

      Gets the name of this service.
      Returns:
        Qualified name of this service

    - #### getPorts

          public abstract Iterator<QName> getPorts()

      Returns an `Iterator` for the list of `QName`s of service endpoints grouped by this service
      Returns:
        Returns `java.util.Iterator` with elements of type `javax.xml.namespace.QName`
      Throws:
        `WebServiceException` - If this Service class does not have access to the required WSDL metadata

    - #### getWSDLDocumentLocation

          public abstract URL getWSDLDocumentLocation()

      Gets the location of the WSDL document for this Service.
      Returns:
        URL for the location of the WSDL document for this service

    - #### getHandlerResolver

          public abstract HandlerResolver getHandlerResolver()

      Returns the configured handler resolver.
      Returns:
        HandlerResolver The `HandlerResolver` being used by this `Service` instance, or `null` if there isn't one.

    - #### setHandlerResolver

          public abstract void setHandlerResolver(HandlerResolver handlerResolver)

      Sets the `HandlerResolver` for this `Service` instance.

      The handler resolver, if present, will be called once for each proxy or dispatch instance that is created, and the handler chain returned by the resolver will be set on the instance.

      Parameters:
        `handlerResolver` - The `HandlerResolver` to use for all subsequently created proxy/dispatch objects.
      See Also:
        `HandlerResolver`

    - #### getExecutor

          public abstract Executor getExecutor()

      Returns the executor for this `Service`instance. The executor is used for all asynchronous invocations that require callbacks.
      Returns:
        The `java.util.concurrent.Executor` to be used to invoke a callback.
      See Also:
        `Executor`

    - #### setExecutor

          public abstract void setExecutor(Executor executor)

      Sets the executor for this `Service` instance. The executor is used for all asynchronous invocations that require callbacks.
      Parameters:
        `executor` - The `java.util.concurrent.Executor` to be used to invoke a callback.
      Throws:
        `SecurityException` - If the instance does not support setting an executor for security reasons (e.g. the necessary permissions are missing).
      See Also:
        `Executor`

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