code: public Observable<ServiceResponse<List<TransparentDataEncryptionActivityInner>>> listByConfigurationWithServiceResponseAsync(String resourceGroupName, String serverName, String databaseName) {
          if (this.client.subscriptionId() == null) {
              throw new IllegalArgumentException("Parameter this.client.subscriptionId() is required and cannot be null.");
          }
          if (resourceGroupName == null) {
              throw new IllegalArgumentException("Parameter resourceGroupName is required and cannot be null.");
          }
          if (serverName == null) {
              throw new IllegalArgumentException("Parameter serverName is required and cannot be null.");
          }
          if (databaseName == null) {
              throw new IllegalArgumentException("Parameter databaseName is required and cannot be null.");
          }
          if (this.client.apiVersion() == null) {
              throw new IllegalArgumentException("Parameter this.client.apiVersion() is required and cannot be null.");
          }
          final String transparentDataEncryptionName = "current";
          return service.listByConfiguration(this.client.subscriptionId(), resourceGroupName, serverName, databaseName, transparentDataEncryptionName, this.client.apiVersion(), this.client.acceptLanguage(), this.client.userAgent())
              .flatMap(new Func1<Response<ResponseBody>, Observable<ServiceResponse<List<TransparentDataEncryptionActivityInner>>>>() {
                  @Override
                  public Observable<ServiceResponse<List<TransparentDataEncryptionActivityInner>>> call(Response<ResponseBody> response) {
                      try {
                          ServiceResponse<PageImpl<TransparentDataEncryptionActivityInner>> result = listByConfigurationDelegate(response);
                          List<TransparentDataEncryptionActivityInner> items = null;
                          if (result.body() != null) {
                              items = result.body().items();
                          }
                          ServiceResponse<List<TransparentDataEncryptionActivityInner>> clientResponse = new ServiceResponse<List<TransparentDataEncryptionActivityInner>>(items, result.response());
                          return Observable.just(clientResponse);
                      } catch (Throwable t) {
                          return Observable.error(t);
                      }
                  }
              });
      }
docs: Returns a database's transparent data encryption operation result.
  
  @param resourceGroupName The name of the resource group that contains the resource. You can obtain this value from the Azure Resource Manager API or the portal.
  @param serverName The name of the server.
  @param databaseName The name of the database for which the transparent data encryption applies.
  @throws IllegalArgumentException thrown if parameters fail the validation
  @return the observable to the List&lt;TransparentDataEncryptionActivityInner&gt; object