是否支持使用GWT RequestFactory支持RequestContext的接口？

我的許多服務都暴露了DAO的。因此，我創建了這些服務的接口：是否支持使用GWT RequestFactory支持RequestContext的接口？

public interface DAORequestContext<T extends SRSProxyBase> extends RequestContext { 
    Request<T> find(Long id); 

    Request<T> load(Long id); 

    Request<T> save(T id); 
}

然而，當（在我RequestFactory無註釋）擴展這個接口：

public interface SafeRideRequestFactory extends RequestFactory { 
    public UserService userService(); 

    @Service(value = UserDAO.class, locator = DAOServiceLocator.class) 
    interface UserService extends DAORequestContext<SRSUserProxy> { } 
}

我得到的運行時異常：

[ERROR] org.saferide.shared.service.DAORequestContext has no mapping to a domain type (e.g. @ProxyFor or @Service) 
[ERROR] The type org.saferide.shared.service.DAORequestContext must be annotated with a @Service or @ServiceName annotation 
[ERROR] The RequestContext type org.saferide.shared.service.DAORequestContext did not pass validation 
[ERROR] Unexpected error 
com.google.web.bindery.requestfactory.server.UnexpectedException: The RequestContext type org.saferide.shared.service.DAORequestContext did not pass validation

僅允許RequestContext的直接後代？有沒有人遇到過這個？

來源

2011-08-28 squinlan