WCF：将服务方法提取到类中

Question

wcf中的常规方法是定义服务类中的所有方法。

[ServiceContract]
   [AspNetCompatibilityRequirements(RequirementsMode = AspNetCompatibilityRequirementsMode.Allowed)]
   [ServiceBehavior(InstanceContextMode = InstanceContextMode.PerCall)]

   public class RestService
   {
      [WebGet(UriTemplate = "/uriTemplate", ResponseFormat = WebMessageFormat.Json)]
      public Stream GetSomething()
      {
          ...
      }
   }

是否可以将这些方法提取到类中并将这些类放入root-service-class中？